No, it is not safe to microwave a wet dish rag or towel to dry them. Microwaving wet fabrics, including dish rags and towels, can pose several hazards and risks, such as:
Fire hazard: Wet fabrics can heat up rapidly in a microwave, and if they become too hot, they may catch fire or smolder, especially if there are any flammable substances or residues present on the fabric.
Damage to the microwave: Microwaving wet fabrics can lead to the release of steam and moisture, which may cause damage to the microwave's interior or electrical components.
Risk of burns: If the fabric becomes excessively hot, it can cause burns or scalds if touched or handled immediately after microwaving.
Release of harmful substances: Depending on the fabric and any chemicals or detergents used, microwaving wet fabric could potentially release harmful substances or fumes.
If you need to dry a dish rag or towel, it is safer to use traditional methods such as air-drying or using a clothes dryer. If you need to sanitize or disinfect the fabric, consider washing it with hot water and detergent before drying it using appropriate methods. Always follow the fabric care instructions and exercise caution to prevent any accidents or damage.