Safe. 2 1 day self-discipline perforated soybean milk is a product officially registered by the market supervision and administration bureau and has formal sales qualification. 2 1 day self-made perforated soybean milk has no messy food additives added. There are only soybeans and water in the ingredient list, but there is no essence, maltodextrin or even sugar. Therefore, 2 1 day self-discipline punching soybean milk is very safe. Soybean milk is a traditional drink of Han nationality in China. The earliest soybean milk was made by Liu An, the king of Huainan in the Western Han Dynasty.