Microwaving cat litter does kill bacteria faster and is generally considered a relatively safe method. Microwave drying is the process of using microwave radiation to heat and dry objects. Microwaves penetrate into objects and heat water molecules, causing them to evaporate.

The benefits of using microwaves to dry cat litter include:

1. Rapid sterilization: Microwave drying can quickly heat the water in the cat litter to high temperatures, thereby killing most microorganisms, including bacteria, fungi and viruses, to achieve a sterilization effect.

2. Save time: Compared with traditional drying or air drying methods, microwave drying can complete the drying process of cat litter faster, saving time and improving efficiency.

3. Relatively safe: Microwave drying is generally considered relatively safe because it does not require the use of chemicals and only uses microwave radiation to heat objects. However, you still need to pay attention to some safety issues when using microwave drying, such as avoiding burns or fires caused by excessive drying time.