Conversation so far:
What is tofu exactly?
Made from soybeans, tofu is also known as bean curd.
How is tofu made?
Tofu is made from soybeans that are ground in water, heated, and coagulated with minerals like calcium or magnesium salt. The curds are then pressed into a block, which is then sold as tofu.
What are tofus origins?
Like many soya foods, tofu originated in China. Legend has it that it was discovered about 2000 years ago by a Chinese cook who accidentally curdled soy milk when he added nigari seaweed.

Question: What is the best tofu?
Self-contained rewrite: What is the best tofu?