If your pickled vegetables are meat, you can freeze them in the refrigerator. If you want to sell it or eat it yourself, just defrost and marinate it!
If it is a vegetable salad, try to sell it out on the same day. If it is promoted in time, it should also be sold out or eaten at home, because some vegetables contain more nitrate. If it is left for too long after cooking, nitrate will be reduced to nitrite under the decomposition of bacteria. Nitrite is carcinogenic and cannot be removed by heating.
There is a shop downstairs in our house, which buys stewed vegetables and cold dishes. His cold dishes and seasonings are separated. When someone wants to buy it, he will adjust the seasoning on the spot according to the customer's needs. And his cold dishes are frozen vegetables, such as shredded bamboo shoots, shredded carrots and shredded cucumbers. There are thousands of pieces of silk, bean sprouts, fungus silk and so on!
Give it a try!