The expiration time is equal to the shelf life days plus the production time, and the remaining expiration days are equal to the expiration time minus the current time.
Shelf life usually refers to the period during which prepackaged foods can maintain its quality under the storage conditions specified in the label.
Dragons and tigers leap, young eagles fight for chapters, dandelions set sail, Huo Ying flies, the river is sharp, the river is at sunrise, Hong Yuzhi knows