I think so, too. Wahaha Nutrition Express and lactic acid bacteria drinks on the market are not milk. They are classified as drinks and have no nutrition. For the taste, these products need to add many additives. Latex-like things that appear in netizens' experiments are probably sediments formed by these additives that are not completely dissolved and react with each other.

The report is like this = =, which means I drank two bottles of acrylic acid yesterday ~