The main reason why four types of cat coffees in Yunnan are considered to be deceptive is that the "cat dung coffee" they advertised does not really exist. Cat dung coffee is a special kind of coffee bean, which is made by a series of treatments after the cat eats the coffee fruit and excretes it. This kind of coffee is considered to have a unique flavor because of the particularity of cat's growing environment and digestive process.

However, four types of cat coffee in Yunnan claim that their coffee beans are extracted from cat excrement, which is obviously not credible. Because the production process of real cat dung coffee is complicated and expensive, the global output is very limited and the price is very expensive. Yunnan Four Cats Coffee claims that its products are cheap, which is inconsistent with the real cat dung coffee.

In addition, the publicity of Yunnan Four Cats Coffee also lacks the support for the transparency of the production process and related certification. Real cat dung coffee usually has relevant certification and marks to ensure its quality and authenticity. However, Yunnan Four Cats Coffee did not provide such certification, which also increased people's doubts about its authenticity.