Oyster sauce is a condiment made from oysters (oysters). Oyster sauce is a traditional flavoring commonly used in Guangdong and one of the largest products in the sauce category. It uses oyster sauce, known as "underwater milk", as raw material, and is refined by boiling, concentrating, and adding auxiliary materials.

Oyster sauce is made from raw oysters and is a nutritious and delicious condiment. Oyster sauce is not oil, it is the soup left over from cooking oyster sauce. This soup is filtered and concentrated to become oyster sauce. It is a nutritious and delicious condiment.

Oyster sauce is extracted from oysters. Of course, it inherits the aroma of oysters. Many other auxiliary materials are added during the processing to form a unique taste - mellow aroma with a little sweetness. Southern cuisine, especially those from coastal regions, seems to have an underlying sweetness, and the use of oyster sauce is one reason why.

Oyster sauce is made by cooking oyster meat, squeezing the juice, concentrating it, and adding other auxiliary ingredients. Because Cantonese people also call oysters "oysters", they are called "oyster sauce". It is also called "underwater milk" because of its raw materials, oysters and oysters.