Baking soda absorption.

Baking soda is well-known for its odor-absorbing qualities and is a simple, passive method for deodorizing a microwave. Placing an open box or bowl of baking soda inside the microwave allows it to gradually absorb and neutralize odors over time. For a quicker approach, a baking soda paste can be used to wipe down the interior, providing both odor absorption and mild abrasive cleaning. Baking soda is a safe, non-toxic option for microwave deodorization.