Tofu brain salty and sweet is a terrier that is used to troll people who ask questions that don't have any need to be asked. Because every time the pop-up tofu brain salty and sweet comes out, it leads to a tearing battle, arguing over whether it is better to have salty or sweet tofu brain.

Bean curd brain a famous traditional snack, is the use of soy protein made of highly nutritious food, more in the morning sale, often mixed with bean curd flower, soybean flower, according to the taste of different places, the north more salty food, while the south is preferred to sweet, there are regions such as Sichuan, such as the love of sour and spicy flavors.

According to legend, Liu An was not engaged in political affairs, ambitious, not satisfied with just being a famous king, always want to seek a more prominent real position, but also intoxicated by the art of immortality, eager to seek the elixir. So, he called the magician guests in the Bakung Mountain, lit a fire, a novel way to ask them to use soybeans and salt brine to alchemy, the results of the alchemy of the snow-white and delicate tofu. It is not a panacea, but delicious, unique flavor. This thing quickly spread, popular in the world, there is a poem as evidence of planting soybean bean seedling scarce, exhaustion of the heart has been bitter. If I had known the technique of Huainan, I would have been able to get the spring cloth. Since then, tofu brain has become a famous traditional snacks of the Han people.