The shelf life of raw stinky tofu embryos is about 7 days.

1. If the original stinky tofu you buy is not sold out within a day, it will often become stale after being stored for a day, especially in summer. In fact, the method of preserving the original stinky tofu is also very simple. It is easy to extend the shelf life of the stinky tofu cubes and keep them as fresh and tender as ever when used. Pour tap water into the box and add some salt to dissolve it into salt water. The ratio of salt water is: 1 pound of water to 4 grams of salt, and let the stinky tofu cubes be completely submerged in the water. This way it can be kept fresh for 5-7 days, the taste is as fresh and tender as ever, and the beany smell can be removed. If the box is placed in the refrigerator compartment with the tofu, it will stay fresh longer. The most suitable refrigeration temperature setting is between 0 and 4 degrees.

2. Use salt and an appropriate amount of food to reduce the stinky tofu cubes into water, and let the water completely cover the stinky tofu cubes. After soaking for 2 hours, drain the water and then use a vacuum bag. After installation, use a vacuum machine to extract the air and seal it to isolate the stinky tofu cubes from the outside air, and put them in the refrigerator to keep them fresh. This method can be stored for more than ten days without deterioration.