The history of cat litter can be traced back to the 1850s in the United States, when people first used sand or ash as cat waste. Over time, cat litter types and materials have evolved to meet different needs and environmental changes: ‌

The first generation of cat litter: It mainly uses Fuller's Earth, a mineral material with strong adsorption capacity, but it does not clump and requires regular whole-pot replacement.

The second generation of cat litter: Bentonite cat litter emerged in the 1980s, when biologist Thomas Eilson discovered a new type of clay that clumps together when wet, making it easier to clean by removing the clumps instead of replacing the whole pot. ‌

The third generation of cat litter: with the improvement of environmental awareness, there are biodegradable plant fiber cat litter, such as tofu cat litter, which is made of wood chips, corn cob and other plant fibers, and is environmentally friendly and has good water absorption and deodorization effect. ‌

In addition, with the development of science and technology, there are other types of cat litter on the market, such as silicone cat litter and crystal cat litter, these new cat litter not only improved in terms of adsorption, but also have more advantages to meet the needs of different cat owners.