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#1
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Slow microwave ovens
Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago.
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#2
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Slow microwave ovens
On 2018-12-29 6:43 a.m., William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. no , " we " shouldn't because i don't want one |
#3
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Slow microwave ovens
On 12/29/2018 7:43 AM, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. Bill |
#4
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Slow microwave ovens
On 29/12/2018 13:43, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. High power microwaves (1MW) are used in industry in for example ore extraction/rock pulverizing. 1MW into a cup of water is not pretty, explodes the water contents and breaks the cup. |
#5
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Slow microwave ovens
In article ,
Bill Gill writes: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. Most commercial microwave ovens are higher power - typically twice that of a domestic oven (they often use a pair of magnetrons). We have them in the office kitchen areas (I think they are 2kW). One problem is that retail food products do not state cooking times in commercial microwave ovens - we have warnings posted on the ovens that they are much more powerful. Also, not all food can be heated faster - often heat conduction is still a critical part of the process, and the ability of food to conduct heat limits the power input some food products can absorb without burning whilst other areas are still cold. There's no problem with standard socket outlets in most countries. In Europe and many other countries outside America, standard sockets are designed to provide 3kW or 3.5kW (depending on country). Many domestic microwaves in Europe are combination ovens with convection, fan, and infra-red (grill) heating too, and often run at 2.5kW when using combination heating (with a 1kW magnetron). In a domestic environment, combination heating is generally more useful than simply a more powerful microwave. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#6
Posted to uk.d-i-y
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Slow microwave ovens
I am not sure what you mean.
Surely the speed of heating depends on the absorption of the energy by what is inside the machine. If its not high enough in things that can get hot, like water content, you can cook it as long as you like with little effect at all. Brian -- -- From the sofa of Brian Gaff - Blind user, so no pictures please! Today is Yesterdays Tomorrow. "William Gothberg" wrote in message news Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. |
#8
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Troll-feeding Senile YANKIETARD Alert!
On Sat, 29 Dec 2018 08:23:37 -0600, Bill Gill, another brain damaged,
troll-feeding, senile Yankietard, blathered: Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. Bill ....and troll-feeding senile idiot no.1 appeared to swallow the abnormal Scottish attention whore's latest idiotic bait, hook, line and sinker again! tsk |
#9
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Troll-feeding Senile IDIOT Alert!
On Sat, 29 Dec 2018 14:46:52 +0000, Andy Bennet, another mentally deficient,
troll-feeding, senile idiot, driveled: High power microwaves (1MW) are used in industry in for example ore extraction/rock pulverizing. 1MW into a cup of water is not pretty, explodes the water contents and breaks the cup. ....and troll-feeding senile idiot no.2 couldn't resist taking the latest silly bait set out by the abnormal Scottish ****** and attention whore! tsk |
#10
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Slow microwave ovens
On Sat, 29 Dec 2018 14:23:37 -0000, Bill Gill wrote:
On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Not a problem in Europe where everything is 240V. Another reason you ought to stop that low voltage crap! Do you seriously have to hard wire all your washing machines, dishwashers, tumble dryers, etc, etc? And what on earth do you do with hoovers? Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. It can take 5 minutes to warm something from frozen to eating temperature. I see no reason that couldn't be made into 2 minutes. |
#11
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Slow microwave ovens
On 2018-12-29 9:27 a.m., William Gothberg wrote:
On Sat, 29 Dec 2018 14:23:37 -0000, Bill Gill wrote: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Not a problem in Europe where everything is 240V.* Another reason you ought to stop that low voltage crap!* Do you seriously have to hard wire all your washing machines, dishwashers, tumble dryers, etc, etc?* And what on earth do you do with hoovers? Also it is questionable whether higher powered ovens would be practical for use.* Getting warming times down to a couple of seconds might not be a good idea.* More speed is not always better. It can take 5 minutes to warm something from frozen to eating temperature.* I see no reason that couldn't be made into 2 minutes. don't use microwaves if you don't like them , use an oven , i want a fast freeze machine , i want to freeze things in 5 minutes |
#12
Posted to uk.d-i-y
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Troll-feeding Senile IDIOT Alert!
On Sat, 29 Dec 2018 15:33:12 -0000, Brainless & Daft, the notorious,
troll-feeding, senile idiot, blathered again: I am not sure what you mean. Right, but you'll feed him anyway, Brainless & Daft! tsk |
#13
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Slow microwave ovens
On 29/12/2018 16:27, William Gothberg wrote:
It can take 5 minutes to warm something from frozen to eating temperature.* I see no reason that couldn't be made into 2 minutes. Conduction Bill |
#14
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Slow microwave ovens
So Mr Mouth when will you have this product on the market and how
much will it cost?? "William Gothberg" wrote in message news :: : It can take 5 minutes to warm something from frozen to eating temperature. I see no reason that couldn't be made into 2 minutes. |
#15
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Slow microwave ovens
On Sat, 29 Dec 2018 14:46:52 -0000, Andy Bennet wrote:
On 29/12/2018 13:43, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. High power microwaves (1MW) are used in industry in for example ore extraction/rock pulverizing. 1MW into a cup of water is not pretty, explodes the water contents and breaks the cup. I don't need a MW, but the usual 600W to 900W in domestic ovens is pitiful. What's wrong with 2kW? |
#16
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Slow microwave ovens
On 2018-12-29 10:26 a.m., William Gothberg wrote:
On Sat, 29 Dec 2018 14:46:52 -0000, Andy Bennet wrote: On 29/12/2018 13:43, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. High power microwaves (1MW) are used in industry in for example ore extraction/rock pulverizing. 1MW into a cup of water is not pretty, explodes the water contents and breaks the cup. I don't need a MW, but the usual 600W to 900W in domestic ovens is pitiful.* What's wrong with 2kW? too expensive |
#17
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Slow microwave ovens
On Sat, 29 Dec 2018 14:56:26 -0000, Andrew Gabriel wrote:
In article , Bill Gill writes: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. Most commercial microwave ovens are higher power - typically twice that of a domestic oven (they often use a pair of magnetrons). We have them in the office kitchen areas (I think they are 2kW). One problem is that retail food products do not state cooking times in commercial microwave ovens - we have warnings posted on the ovens that they are much more powerful. Is the average person not able to divide by two? Also, not all food can be heated faster - often heat conduction is still a critical part of the process, and the ability of food to conduct heat limits the power input some food products can absorb without burning whilst other areas are still cold. Then the oven needs to have a more even waveform. There's no problem with standard socket outlets in most countries. In Europe and many other countries outside America, standard sockets are designed to provide 3kW or 3.5kW (depending on country). Many domestic microwaves in Europe are combination ovens with convection, fan, and infra-red (grill) heating too, and often run at 2.5kW when using combination heating (with a 1kW magnetron). In a domestic environment, combination heating is generally more useful than simply a more powerful microwave. Not when I want to heat something in 2 minutes, conventional heating won't even get going in that time. |
#18
Posted to uk.d-i-y,alt.sci.physics,alt.home.repair
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Slow microwave ovens
Most food is very high in water content. Double the microwaves, double the speed the water heats up.
On Sat, 29 Dec 2018 15:33:12 -0000, Brian Gaff wrote: I am not sure what you mean. Surely the speed of heating depends on the absorption of the energy by what is inside the machine. If its not high enough in things that can get hot, like water content, you can cook it as long as you like with little effect at all. Brian |
#19
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Slow microwave ovens
On 2018-12-29 10:32 a.m., William Gothberg wrote:
On Sat, 29 Dec 2018 14:56:26 -0000, Andrew Gabriel wrote: In article , ****Bill Gill writes: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use.* Getting warming times down to a couple of seconds might not be a good idea.* More speed is not always better. Most commercial microwave ovens are higher power - typically twice that of a domestic oven (they often use a pair of magnetrons). We have them in the office kitchen areas (I think they are 2kW). One problem is that retail food products do not state cooking times in commercial microwave ovens - we have warnings posted on the ovens that they are much more powerful. Is the average person not able to divide by two? Also, not all food can be heated faster - often heat conduction is still a critical part of the process, and the ability of food to conduct heat limits the power input some food products can absorb without burning whilst other areas are still cold. Then the oven needs to have a more even waveform. There's no problem with standard socket outlets in most countries. In Europe and many other countries outside America, standard sockets are designed to provide 3kW or 3.5kW (depending on country). Many domestic microwaves in Europe are combination ovens with convection, fan, and infra-red (grill) heating too, and often run at 2.5kW when using combination heating (with a 1kW magnetron). In a domestic environment, combination heating is generally more useful than simply a more powerful microwave. Not when I want to heat something in 2 minutes, conventional heating won't even get going in that time. is that what your wife said |
#20
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Slow microwave ovens
"William Gothberg" wrote:
I don't need a MW, but the usual 600W to 900W in domestic ovens is pitiful. What's wrong with 2kW? There are higher rating consumer units, but you have to look for them. I had a 1.2kw range hood type that worked much better than the 900w types. I think commerical units (i.e. convenience store) can be found that are 1.8kw. That said, what I find annoying is that the power control for every consumer microwave I've seen is duty cycle based. That is, so many seconds of full power followed by so many seconds of no power. Some foods and defrosting would work much better if the actual power level could be adjusted. Panasonic claims to make an inverter based design, but I'm not convinced they actually adjust the outpout power. |
#21
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Slow microwave ovens
On Sat, 29 Dec 2018 17:15:05 -0000, Bill Wright wrote:
On 29/12/2018 16:27, William Gothberg wrote: It can take 5 minutes to warm something from frozen to eating temperature. I see no reason that couldn't be made into 2 minutes. Conduction Which would be way faster if the water content the microwaves were hitting was heated hotter. Plus, make the microwave waveform more even, and you would need less conduction. |
#22
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Slow microwave ovens
I was just asking WHY. And people have already said that commercial ones are 2kW, so it's entirely possible.
On Sat, 29 Dec 2018 17:19:48 -0000, ..shadow, me & my wrote: So Mr Mouth when will you have this product on the market and how much will it cost?? "William Gothberg" wrote in message news :: : It can take 5 minutes to warm something from frozen to eating temperature. I see no reason that couldn't be made into 2 minutes. |
#23
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Slow microwave ovens
On Sat, 29 Dec 2018 17:29:50 -0000, William Gothberg wrote:
On 2018-12-29 10:26 a.m., William Gothberg wrote: On Sat, 29 Dec 2018 14:46:52 -0000, Andy Bennet wrote: On 29/12/2018 13:43, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. High power microwaves (1MW) are used in industry in for example ore extraction/rock pulverizing. 1MW into a cup of water is not pretty, explodes the water contents and breaks the cup. I don't need a MW, but the usual 600W to 900W in domestic ovens is pitiful. What's wrong with 2kW? too expensive You can get a 700W microwave for £30. Surely 2kW would be less than triple that, so under £90. |
#24
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Slow microwave ovens
On Sat, 29 Dec 2018 17:34:10 -0000, William Gothberg wrote:
On 2018-12-29 10:32 a.m., William Gothberg wrote: On Sat, 29 Dec 2018 14:56:26 -0000, Andrew Gabriel wrote: In article , Bill Gill writes: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. Most commercial microwave ovens are higher power - typically twice that of a domestic oven (they often use a pair of magnetrons). We have them in the office kitchen areas (I think they are 2kW). One problem is that retail food products do not state cooking times in commercial microwave ovens - we have warnings posted on the ovens that they are much more powerful. Is the average person not able to divide by two? Also, not all food can be heated faster - often heat conduction is still a critical part of the process, and the ability of food to conduct heat limits the power input some food products can absorb without burning whilst other areas are still cold. Then the oven needs to have a more even waveform. There's no problem with standard socket outlets in most countries. In Europe and many other countries outside America, standard sockets are designed to provide 3kW or 3.5kW (depending on country). Many domestic microwaves in Europe are combination ovens with convection, fan, and infra-red (grill) heating too, and often run at 2.5kW when using combination heating (with a 1kW magnetron). In a domestic environment, combination heating is generally more useful than simply a more powerful microwave. Not when I want to heat something in 2 minutes, conventional heating won't even get going in that time. is that what your wife said I'm not stupid enough to marry. |
#25
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Slow microwave ovens
On Sat, 29 Dec 2018 17:34:22 -0000, Arthur Conan Doyle wrote:
"William Gothberg" wrote: I don't need a MW, but the usual 600W to 900W in domestic ovens is pitiful. What's wrong with 2kW? There are higher rating consumer units, but you have to look for them. I had a 1.2kw range hood type that worked much better than the 900w types. I think commerical units (i.e. convenience store) can be found that are 1.8kw. That said, what I find annoying is that the power control for every consumer microwave I've seen is duty cycle based. That is, so many seconds of full power followed by so many seconds of no power. Some foods and defrosting would work much better if the actual power level could be adjusted. Panasonic claims to make an inverter based design, but I'm not convinced they actually adjust the outpout power. I'm unsure how magnetrons work, but what's the big deal with running them at half power? Do they have to be on full power, and also can't be cycled more quickly? Anyway, I've never used a microwave on anything other than full power - even when defrosting, which for some reason people think you have to select "defrost". Why? It just takes longer. I can defrost food much faster on full power. Another weird thing my current (Hyundai 800W) microwave does is to switch off the heating completely for the last 15 seconds but continue to run the fan, light, and turntable (if you've selected at least 4 minutes time). So er like why not just remove the food 15 seconds earlier? Which I often do. Funnily enough nothing ever exploded. |
#26
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Slow microwave ovens
On 12/29/2018 11:29 AM, William Gothberg wrote:
On 2018-12-29 10:26 a.m., William Gothberg wrote: On Sat, 29 Dec 2018 14:46:52 -0000, Andy Bennet wrote: On 29/12/2018 13:43, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. High power microwaves (1MW) are used in industry in for example ore extraction/rock pulverizing. 1MW into a cup of water is not pretty, explodes the water contents and breaks the cup. I don't need a MW, but the usual 600W to 900W in domestic ovens is pitiful.* What's wrong with 2kW? too expensive 1200 watt consumer microwaves are widely available. Check your Walmart or whatever you have. Bill |
#27
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Slow microwave ovens
William Gothberg wrote
Shouldn't we have faster microwaves by now giving out a few kW? We do. They were invented decades ago. |
#28
Posted to alt.home.repair,uk.d-i-y,alt.sci.physics,alt.electronics
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Slow microwave ovens
On Sat, 29 Dec 2018 17:57:35 -0000, Bill Gill wrote:
On 12/29/2018 11:34 AM, William Gothberg wrote: On Sat, 29 Dec 2018 16:56:35 -0000, trader_4 wrote: On Saturday, December 29, 2018 at 11:27:53 AM UTC-5, William Gothberg wrote: On Sat, 29 Dec 2018 14:23:37 -0000, Bill Gill wrote: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Not a problem in Europe where everything is 240V. Another reason you ought to stop that low voltage crap! Do you seriously have to hard wire all your washing machines, dishwashers, tumble dryers, etc, etc? And what on earth do you do with hoovers? No. Of those only a dishwasher is hardwired, typically. The rest are plug and cord, 240V in the case of electric dryers. Works for me. So you do have sockets where you can plug in 240V 3kW devices, just like in the UK. So no problem with a more powerful microwave then. If you don't mind going to the garage/laundry room/etc. to use your microwave. In the UK we don't have that problem, my kitchen is full of 13A 240V sockets, just like every other room, it's what I plug my kettle, dishwasher, washing machine, bread maker, etc, etc into. All of which would be utterly useless on a 120V circuit. I thought the USA had 240V sockets in rooms where they're likely to be needed, like the kitchen? And where do you plug in a 2kW hoover? I plug mine in any room I'm hoovering. |
#29
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Slow microwave ovens
On Sat, 29 Dec 2018 18:00:47 -0000, Bill Gill wrote:
On 12/29/2018 11:29 AM, William Gothberg wrote: On 2018-12-29 10:26 a.m., William Gothberg wrote: On Sat, 29 Dec 2018 14:46:52 -0000, Andy Bennet wrote: On 29/12/2018 13:43, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. High power microwaves (1MW) are used in industry in for example ore extraction/rock pulverizing. 1MW into a cup of water is not pretty, explodes the water contents and breaks the cup. I don't need a MW, but the usual 600W to 900W in domestic ovens is pitiful. What's wrong with 2kW? too expensive 1200 watt consumer microwaves are widely available. Check your Walmart or whatever you have. 1200W isn't much more than the 900W most are. |
#30
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Slow microwave ovens
On Sat, 29 Dec 2018 14:37:48 -0000, trader_4 wrote:
On Saturday, December 29, 2018 at 9:23:42 AM UTC-5, Bill Gill wrote: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. Bill +1 That about covers it. Not sure how useful more power would be. For example, last night I was thawing out a tomato sauce in a quart plastic container. The Panasonic has a defrost mode that uses about 30% power and cycles that. Even so, after a couple mins you have to check, because the bottom gets hotter and the plastic can soften or melt. Other things tend to heat unevenly as well, eg you can have one area starting to spatter, while the other is lower temp. If you had more power, those issues just become worse. Only with a small number of things, where you'd just select half power. For example I often put in a large bowl of pasta or veg full of cold water, not covered. That water would easily handle 2kW. ONly packaged food in cheap plastic containers is a problem, and those will already melt in my 800W microwave. I always empty them into a real bowl first. And for sure the fact that receptacles are 15 or 20 amps limits the practical upside as well. 13A 240V in the UK, no problem to get 3kW. The USA has those too. If people had a MW and it trips the breaker when they use another small appliance, they wouldn't be very happy. My socket circuit is 30A. More modern houses are 32A. Larger houses have two 32A circuits. At 240V, so enough for about 7kW. |
#31
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Slow microwave ovens
"Bill Gill" wrote in message ... On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Yes, but that's only a problem in the USA and other 110V countrys. Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. Any decent microwave fixes that problem already with you being able to use other than full power for what works better at lower power settings. |
#32
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Slow microwave ovens
On Sat, 29 Dec 2018 17:38:04 -0000, Clare Snyder wrote:
On Sat, 29 Dec 2018 08:07:42 -0800, Bob F wrote: On 12/29/2018 6:37 AM, trader_4 wrote: On Saturday, December 29, 2018 at 9:23:42 AM UTC-5, Bill Gill wrote: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use. Getting warming times down to a couple of seconds might not be a good idea. More speed is not always better. Bill +1 That about covers it. Not sure how useful more power would be. For example, last night I was thawing out a tomato sauce in a quart plastic container. The Panasonic has a defrost mode that uses about 30% power and cycles that. It gets the 30% power by cycling the 100% power on 30% of the time. (By the way, adjusting the level does not actually change the wattage. It simply means the microwave will pulse on and off at its fixed wattage until the desired level is reached.) https://lifehacker.com/5974788/famil...-cooking-a-joy That was true of the first generation of Microwaves, but the current "inverter" driver units actually CAN throttle the power. Inverter microwaves are much better for defrosting AND cooking. We've had ours for about 2 years now - replacing our original that we bought in about 1985. BIG difference (but the old one would likely still be working by the time this one dies) Why is it called an invertor? I thought an invertor was a device to increase the voltage - like running 240V devices off a 12V car battery. And why on earth would you not want to cook on full power? I've never had a reason to lower the power from the maximum of 800W. I want the meal as soon as possible! |
#33
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Slow microwave ovens
On 2018-12-29 10:43 a.m., William Gothberg wrote:
On Sat, 29 Dec 2018 17:34:10 -0000, William Gothberg wrote: On 2018-12-29 10:32 a.m., William Gothberg wrote: On Sat, 29 Dec 2018 14:56:26 -0000, Andrew Gabriel wrote: In article , *** Bill Gill writes: On 12/29/2018 7:43 AM, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. Higher powered microwaves would require higher powered electric outlets, probably 220VAC (in the USA). Also it is questionable whether higher powered ovens would be practical for use.* Getting warming times down to a couple of seconds might not be a good idea.* More speed is not always better. Most commercial microwave ovens are higher power - typically twice that of a domestic oven (they often use a pair of magnetrons). We have them in the office kitchen areas (I think they are 2kW). One problem is that retail food products do not state cooking times in commercial microwave ovens - we have warnings posted on the ovens that they are much more powerful. Is the average person not able to divide by two? Also, not all food can be heated faster - often heat conduction is still a critical part of the process, and the ability of food to conduct heat limits the power input some food products can absorb without burning whilst other areas are still cold. Then the oven needs to have a more even waveform. There's no problem with standard socket outlets in most countries. In Europe and many other countries outside America, standard sockets are designed to provide 3kW or 3.5kW (depending on country). Many domestic microwaves in Europe are combination ovens with convection, fan, and infra-red (grill) heating too, and often run at 2.5kW when using combination heating (with a 1kW magnetron). In a domestic environment, combination heating is generally more useful than simply a more powerful microwave. Not when I want to heat something in 2 minutes, conventional heating won't even get going in that time. is that what your wife said I'm not stupid enough to marry. yes you are |
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Slow microwave ovens
On 2018-12-29 10:43 a.m., William Gothberg wrote:
On Sat, 29 Dec 2018 17:29:50 -0000, William Gothberg wrote: On 2018-12-29 10:26 a.m., William Gothberg wrote: On Sat, 29 Dec 2018 14:46:52 -0000, Andy Bennet wrote: On 29/12/2018 13:43, William Gothberg wrote: Shouldn't we have faster microwaves by now giving out a few kW?* They were invented decades ago. High power microwaves (1MW) are used in industry in for example ore extraction/rock pulverizing. 1MW into a cup of water is not pretty, explodes the water contents and breaks the cup. I don't need a MW, but the usual 600W to 900W in domestic ovens is pitiful.* What's wrong with 2kW? too expensive You can get a 700W microwave for £30.* Surely 2kW would be less than triple that, so under £90. and then re wire the house and when you use it , you can watch the hydro disk spin like a top |
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Slow microwave ovens
"William Gothberg" wrote:
Anyway, I've never used a microwave on anything other than full power - even when defrosting, which for some reason people think you have to select "defrost". Why? It just takes longer. I can defrost food much faster on full power. The idea is not to cook the food as its defrosting. Full power is fine if you want the end item hot. It's not good if you want something room tempurature or slightly cooler to use as a part of preparation of something else. |
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Slow microwave ovens
"William Gothberg" wrote:
I thought the USA had 240V sockets in rooms where they're likely to be needed, like the kitchen? In the US 240v sockets are typically found in the kitchen for use by an electric range, or in a dedicated laundry room for use by an electric dryer. Sometimes they can be found in a garage. The interior outlets are typicaly located behind the appliance - in effect dedicated for that appliance and not intended for general use. |
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Slow microwave ovens
"William Gothberg" wrote:
Why is it called an invertor? Typical microwaves use fixed AC power to drive the magnetron. Inverter driven magnetrons use DC power, which can be variable. |
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Slow microwave ovens
On Sat, 29 Dec 2018 18:21:45 -0000, Arthur Conan Doyle wrote:
"William Gothberg" wrote: Anyway, I've never used a microwave on anything other than full power - even when defrosting, which for some reason people think you have to select "defrost". Why? It just takes longer. I can defrost food much faster on full power. The idea is not to cook the food as its defrosting. Full power is fine if you want the end item hot. It's not good if you want something room tempurature or slightly cooler to use as a part of preparation of something else. Then I just use less cooking time. Full power will defrost to room temperature much faster than that pointless defrost mode. And if you're about to say it won't be even, so what? If it's for part of preparation of something else, it has plenty time to even out. |
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Slow microwave ovens
On Sat, 29 Dec 2018 18:25:05 -0000, Arthur Conan Doyle wrote:
"William Gothberg" wrote: I thought the USA had 240V sockets in rooms where they're likely to be needed, like the kitchen? In the US 240v sockets are typically found in the kitchen for use by an electric range, or in a dedicated laundry room for use by an electric dryer. Sometimes they can be found in a garage. The interior outlets are typicaly located behind the appliance - in effect dedicated for that appliance and not intended for general use. I'd find that severely limiting. 2kW hoover, 2kW kettle, breadmaker, toaster, etc, etc. |
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Slow microwave ovens
On 12/29/2018 06:43 AM, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW? They were invented decades ago. I worked for a company around 1970 that developed a few high power microwaves that were placed in area restaurants. The idea, now completely familiar, was the restaurant could prepare quantities of food, freeze them, and thaw on demand. Other companies had similar industrial ovens. The core business of the company was industrial plastics preheaters which functioned at around 100 MHz rather than microwave frequencies. They completely missed the consumer microwave market that was to grow in the later '70s. We always had a couple of the smaller preheaters hanging around engineering. They did wonders for stale donuts. Even the factory workers in the molding plants caught on. 'I bet if that thing can heat a phenolic biscuit to 300 degrees it would work on my sandwich.' We didn't explicitly mention it when installing new equipment other than vague cautions about not putting aluminum foil in the cavity. The larger models were 15 KW and could generate some Tesla quality fireworks. As the various RF technologies like heat sealers made it to the workplace a whole folklore grew up. Working around them could either make you sterile or incredibly fertile, take your pick. The technology has been around for over 50 years. What you find at Tesco is what sells. |
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