剛才看到大媽豬的貼子裏提到在Costco買的yeast “put it in each individual begs, then put all in the Ziploc (double zipper)and put in the freezer“,大家都是這樣儲藏嗎?難怪,我曾經在Costco買的半年就失效了,我就這樣放在外麵的,沒放在冰箱裏。是放冰室還是就冷藏?