News

The hop variety Perle was the result of a breeding program at The Hop Research Institute in Hüll Germany aimed at creating a disease resistant alternative to Hallertauer Mittelfrüh — a variety particularly susceptible to mildew. The new hop didn’t get much attention as a replacement, but did become popular in its own right. It was released commercially in 1978. Perle’s pedigree includes a Northern Brewer female and an undisclosed German male and it's reasonable to surmise that the male had Hallertauer Mittelfruh somewhere in its bloodline based on what the breeding program was trying to accomplish.   Perle remains one of...

STA-1 is a marker in yeast that indicates it has mutated or become a diastaticus variant of the normal Saccharomyces Cerevisiae. Once detected in a yeast strain, the strain is then properly identified as Saccharomyces cerevisiae variant Diastaticus What is Diastaticus? The presence of the STA1 gene causes the yeast to secrete glucoamylase, an enzyme which hydrolyzes dextrins and starches into fermentable sugars. The yeast is now a “hyperattenuator” as it ferments beer beyond what ordinary brewer’s yeast is capable. It's often considered to be a beer spoiler or “wild yeast”, as it causes unwanted secondary fermentations in packaged commercial beer. The...