食品標示2019/12/15/DM是製造日期，還是有效日期?

要不您打錯要不就是印錯
製造日期的縮寫有很多
但都是M開頭
例如：MNF．MFD．MFG．MAN．MD．MF等英文縮寫

Always assume expiration date.

1. Practically all countries require food to have the expiration date marked.

2. Manufacturing date is used to identify the product batch. It is optional and it is not always easily understandable to consumers.

3. If the manufacturing date is used in lieu of the expiration date, the packaging will have information about the expiration how long after it has been manufactured.

應該是date of manufacture製造日期的簡寫，但要看看有沒有mfd,mfg,mnf或man的字眼