bottom yeast

The end-of-fermentation acetaldehyde content tended to be lower using top yeast than bottom yeast.

上面酵母比下面酵母的乙醛含量低。

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。

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.

甲壳素在一定面积的增加，这有助于使酵母细胞的发酵罐底部为解决那里可能成为弱并强。