***自己回答
If you received a code that starts with B, example B0140421Y, please use the
following method.
B0 - plant
14 - year
042 - day of the year it was manufactured.
B0140421Y = 2-11-2014 (11th feb 2014)
Shelf life : 3 years
Recommended to use within 12 months after opening
*****
我知道過去的效期是七位碼
但今天拿到一批說是新口味 格式是B0140921Z
推測是不是改成年月日了
請問這樣是怎麼看呢?
如果是照舊法，就是09年生產了?
謝謝