Types of tofu that can be used in a crock pot I am currently trying to get rid of some firm and soft tofu that's been in my fridge for a while, and I wanted to try out a few slow cooker recipes for braised tofu. However, all of these recipes call for extra-firm tofu. 

Would less firm tofu be able to hold up to 6+ hours of crock pot cooking? Or is it really critical that I use extra-firm tofu for this?
There's a lot of variance in tofu, but there's usually a significant difference between firm and extra firm. The soft tofu will not hold up, it will probably dissolve after 6 hours. The firm tofu may possibly hold up, it really depends on how firm the brand makes their firm tofu, I suggest you try it and see.