Wednesday, March 22, 2017

How to Kasher a Microwave for Pesah

How to Kasher a Microwave for Pesah

Day: Wednesday
Date: March 22, 2017
Parshat: Vayakhel Pekudei
Yalkut Yosef: O"H: 451

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There are two different kinds of microwave ovens. Some of them have a heating element and can be used like a regular oven. Others work only by using radiation to warm up the food as opposed to using actual heat. The ones that have a heating element can kashered for Pesah the same way as a regular oven: by waiting 24 hours from the last use, cleaning it well, and turning it on the highest setting for an hour or so. The microwaves that work by using radiation need to be kashered even though generally they are used to warm things rather than to cook things. These microwaves can be kashered by cleaning them well and boiling a cup of water with (non toxic) soap until the walls of the microwave have steam on them. As an extra precaution, it is also good to wrap well everything that is heated in the microwave during Pesah. Microwaves in public places that are constantly used or even private microwaves that are used so much that the walls generally become very hot should not be kashered for Pesah. Serving trays that are not used to cook on may be kashered by pouring boiling hot water on them directly from a kli rishon.

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