Yes Lactone refers to an organic compound containing both carboxyl and hydroxyl groups in the same molecule, which is very useful in food production, such as tofu brain and other foods. If lactone gets wet, it will affect the production of tofu and the safety of tofu brain. Tofu brain, also known as water tofu, is a famous traditional snack. It is a highly nutritious food made of soybean protein and is usually sold in the morning. Often mixed with tofu flower and tofu brain. According to different tastes in different places, the north prefers salty taste and the south prefers sweet taste. For example, Sichuan and other places like hot and sour taste.