What are the conditions for tofu to be sour?

Tofu is not bad, but also sour, so it is proved that tofu is usually salted when it is made. This kind of tofu is also called old tofu, and lactone tofu itself is solidified by acid and bean protein, so it will have a sour taste, which is normal, but if it is left for too long, it may deteriorate.

Tofu is a nutritious food with a long history. The public's love for tofu has promoted the progress and development of tofu making technology. The main production process of tofu is pulping, that is, soybean is made into soybean milk; The second is solidification, that is, soybean milk solidifies into a gel containing a lot of water under the action of heat and coagulant, which is tofu.

Purchase instructions

Look at the color: the color of high-quality tofu is even milky white or light yellow, which is the color of soybean meal. Inferior tofu is dark gray and dull.

Second, look at elasticity: high-quality tofu has elasticity, uniform structure, tender texture and complete shape. Inferior tofu is rough, inelastic to the touch, sticky but not slippery.

Three smells: normal and high-quality tofu will have the unique fragrance of bean products. Inferior tofu beans have strong odor and other odors.

Four flavors: a little taste of high-quality tofu, delicate and fragrant. Inferior tofu tastes rough, light and bitter.