The tofu cat litter in the cat litter box can be completely replaced every 10-15 days. During the replacement process, the cat litter box should be rinsed clean. This can ensure the cleanliness of the cat litter box and reduce the generation of odor; in addition, the owner is After the cat shovels poop, he finds that the tofu cat litter in the cat litter box has become less. You can add a small amount of it. This can ensure the replenishment of the tofu cat litter and also allow the introduction of new tofu cat litter.