Natural methods to repel and eliminate rats without using toxic chemicals:

1. Using Roasted Rice and Cement:

   • Mix roasted rice, sesame oil, and cement.
   • Place the mixture in areas where rats often appear.
   • After eating, rats will feel thirsty, and when they drink water, the cement will harden in their stomach, leading to their death.

2. Using Baking Soda:

   • Mix baking soda with flour and sugar.
   • When rats consume it, baking soda reacts and produces CO2 gas, which paralyzes and eventually kills them.

3. Using Mashed Potatoes:

   • Boil potatoes, mash them, and mix with cocoa powder or vanilla.
   • Place the mixture near a bowl of water.
   • When rats eat the potatoes and drink water, the potatoes expand in their stomach, causing digestive blockage.

4. Using Vinegar:

   • Soak cotton balls in vinegar and place them in areas where rats often pass.
   • The strong smell of vinegar will drive the rats away.

5. Using Soap:

   • Mix soap powder, Sichuan pepper powder, and cooked rice.
   • Place the mixture in areas where rats appear; the strong smell will make them avoid these places.

These methods effectively repel and eliminate rats without harming human health.