[TedDoesntTalk]

I know. I’m asking if it goes bad, how would you even know when the smell is bad before it is rancid.

[teorema]

You'd be wise to be careful with stinky tofu, at least in many places.

The safest methods simply marinate tofu in fermented amaranth; the tofu itself isn't aged. But there's many approaches to it with and without questionable safety practices. I'm not sure comparisons to blue cheese or koji-fermented products are appropriate.

https://roadsandkingdoms.com/2019/stinky-tofu-in-shaoxing/