Food and Entertaining How do you deodorize a microwave with a lemon? How do I remove fish smell from microwave? The easiest hack to get it gone fast is to wet a dish towel and rub a couple teaspoons of dish soap into it. Zap it in the microwave for a few minutes, then let it sit in there for 30 minutes before wiping the microwave walls down.26 Jan 2017 Related Posts:You can microwave a turkey, Butterball says.There are pros and cons of fish farming, and there are drawbacks.There are four ways to fix the microwave not heating up.How to keep a mason jar soap dispensers from getting rusty?