Does tofu stink with cold water or hot water?

Tofu is made of soybean, which contains some fishy ingredients, such as coumarin. After tofu is heated, its internal protein structure will change, which is conducive to the release of fishy substances. However, cold water cannot effectively change the protein structure of tofu because of its low temperature, so the deodorization effect is not as good as hot water.

Treating tofu with hot water can also achieve the effect of sterilization. Tofu will be contaminated by microorganisms and bacteria during its production and storage. Hot water can kill these microorganisms and bacteria, which is very important for ensuring the hygiene and safety of tofu, avoiding food poisoning and protecting people's health.