Q&A: Microwave in a Non-Kosher Place
Originally published:
This is an English translation (via GPT-5.4). Read the original Hebrew version.
Microwave in a Non-Kosher Place
Question
Is it permissible to heat food in a microwave in which non-kosher food is definitely heated?
Answer
The practice is not to do so, but strictly speaking there is room to be lenient. Certainly when the food is inside a closed container.
Discussion on Answer
What isn’t clear? I said that this is the accepted practice (how many years does it take for a practice to form?), and therefore there is reason to observe it by force of established practice as well, even if not under the strict letter of the law.
Since the microwave is a fairly recent invention, what is the meaning of “the practice is”?
And why not simply act in accordance with the law?