On Wednesday, November 30, 2016 at 5:41:20 PM UTC-6, Frank wrote:

I find it easier to microwave for longer periods of time at a lower
setting to get even heat.


Me, too and my microwave oven is a 1200 watt model. I've found
out if I heat a mug of soup for 3½ minutes at 60% power vs. 2
minutes at 100% power I get no boil overs and even heating. It
took a while for me to hit on this power and time limit when
upgrading from an 800 watt model. I sure did get tired of
cleaning up messes.

:-)