C52 052 Mildewed Bamboo Shoots

Rot milk was very popular in the world that Xia Yi lived in.

If there was no such thing in this world, this would be a huge business opportunity.

Furthermore, it was easy to store rotten milk, it was very suitable for mass production. Adding to that, Xia Changsheng already knew how to make tofu, if he calculated carefully, his profits would be considerable.

But..