The difference is that lager ferments and ages best in cool conditions, so requires Saccharomyces pastorianus, a cold-tolerant yeast species, for its production.

不同之处在于，拉格啤酒在凉爽条件下发酵和陈酿效果最好，因此需要使用耐寒酵母菌 Saccharomyces pastorianus 来生产。