The end-of-fermentation acetaldehyde content tended to be lower using top yeast than bottomyeast.
上面酵母比下面酵母的乙醛含量低。
2
Then it began to act like yeast used in slow-fermenting lagers, settling to the bottom of the tank but not going dormant.
然后它们开始像用于慢性发酵的储藏啤酒的酵母一样活动，深入酿造箱底部，却又不休眠。
3
Chitin increases the surface area in the must which helps keep the yeast cells from settling to the bottom of the fermenter where they may become weak and stressed.