Originally Posted by YooperBrew
No way, if I remember how microwaves work. They actually don't heat a container, they have electromagnetic waves kind of like radiowaves. The reason the food cooks is that it causes the molecules to "vibrate", causing friction which heats and cooks the food, especially fat and water molecules. It's basically non-radioactive radiation. Since there is no fat (or water) in an empty bottle, it wouldn't work. But you could maybe put those bottles in a container of water and boil them. Of course, you could do that on the stove or oven, too.
A microwave actually only makes water move really quickly, since it is at the same resonance frequency.
You could put water into your bottles and heat them in the microwave, but the quick temperature change would risk breaking the bottles.
MOD EDIT: Sig only takes up 6 lines now. Fermenting: Apple cider x 2, Doppelbock, Red, Oatmeal Stout, West Coast IPA x 2
Bottle conditioning: RIS
Keg conditioning: La Fin du Monde clone
On tap: Maudite clone, Double Munchen, Oktoberfeast, Oktoberfest Pilsner
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