Vasking av gjær

Ingen som kan gi en mer eller mindre vitenskapelig forklaring på hva som finnes i de ulike lagene i krukka?
 
Fra BYO: "When accessing yeast from the bottom of a fermenter do your best to collect the middle yeast. The sediment at the very bottom often contains dead yeast and trub, and the middle layer contains the best yeast for repitching. The bottom layer of dead yeast and trub can be distinguished by its darker color, while the preferred layer of yeast will appear more yellow and putty-like. Harvest the yeast as soon as fermentation is complete and the yeast has settled."
Problemet mitt er at det mørke laget ligger over det lyse tenker jeg at det ikke er trub og humlerester?
 
Tilbake
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