Depends on the situation. Canned food is one of the few products that do not require the addition of preservatives, according to the "National Standard for Food Safety, Standard for the Use of Food Additives" (GB2760-2014), except for prunes, bamboo shoots, sauerkraut, edible mushrooms, nuts and seeds, canned meat and other small portion of canned food is allowed to add a limited amount of specific preservatives, the rest are not allowed to add preservatives.

It depends. Canned food is one of the few products that do not require the addition of preservatives, according to the "National Standard for Food Safety, Standard for the Use of Food Additives" (GB 2760-2014), except for prunes, bamboo shoots, sauerkraut, edible mushrooms, nuts and seeds, canned meat and other canned food and other canned foods are allowed to add a limited amount of specific preservatives, the rest can not be added to the preservatives.