Prunus mume originated in La Piet de Agun, southwest France, and is the hometown of Prunus mume. When plums are ripe, their skins are dark purple and their flesh is amber.

The production of preserved plum is the ripe yellow plum after picking mango seeds, commonly known as Huangmei. Picking Huangmei from the tree, washing, soaking in salt water in a vat, and then taking it out to dry; After drying, rinse with clear water, and then dry; Then pickled with sugar, and then dried in the sun-so repeatedly, it can be said that "ten steaming and nine drying, one plum in a few months", and finally become a plum with crisp meat and moderate sweetness and sourness. This kind of plum can be preserved for several years if it is well preserved, moisture-proof and moth-proof.