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dpb dpb is offline
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Default cleaning out espresso coffee machine

myfathersson wrote:
....

What I was wondering was which cleaners will burn through all this
crud. To me the citrus ones all seem to be the same, none seem to
be of any greater strength than others and I am not sure whether they
are designed to dissolve the coffee or clean out limescale in the
boiler. Whenever i have tried them in the past I have always found
undissolved crud under the screen after use and what has come through
has never seemed particularly dirty to me??

....

You can try CLR or a similar product.

The reason it doesn't look dirty if it does work is that it redissolves
the lime in solution so it is no longer a solid. It's those same
soluble salts are deposited as scale by the heating process that turned
them into the solids.

You can try several soaks; if it's heavily scaled as noted it will
undoubtedly take quite some time to see real results.

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