The word "truffle" refers to black truffle, which is a local name in Yunnan, mainly because black truffle will emit a unique smell when it matures. Some people say it smells like smelly socks, while others say it smells like sweat. In short, it is unpleasant, and this smell is particularly attractive to pigs and dogs, so the locals call it "truffle", which used to be used to feed pigs, and the locals did not eat it.

Generally, black truffles are frozen, mostly because they will not be eaten for a while, or they want to eat for longer. In general, fresh black truffles can be stored in the refrigerator for about 5-7 days, while they can be stored in the refrigerator for one month to three months, but it is best to eat them within one month. Although low temperature can temporarily inhibit bacterial reproduction and keep black truffles from deteriorating, free water will combine into ice crystals when frozen, which will destroy the biological tissues in black truffles, thus leading to the loss of nutrients in black truffles and affecting the quality and taste of black truffles.

You can clean the fresh black truffles one by one with a brush, drain the water or dry them with kitchen paper towels, package them and store them in the refrigerator, or wrap them in tin foil and store them in the freezer.