https://www.lallemandbrewing.com/wp...bestpractices-Biotransformation-digital-1.pdf
It is also important to note that this interaction may have unfavorable effects if we dry hop our beers under active fermentation (e.g. first fermentation) will lead to the reduction of hop oils by:
- CO2 stripping (hop oils are very volatile)
- Masking (fermentation compounds may mask the hop oil aroma)
- Adsorption (hop oils adsorbed by yeast membrane, which is removed later on)
However, if dry hopping is performed at the
very end of the fermentation, where there is lower CO2 production (which kept within the tank) but yeast is still very active, the following benefits occur:
- Less CO2 stripping (more hop oils kept in the beer matrix)
- Reduction of dissolved oxygen (DO) by active yeast during dry hopping
- Ethanol presence (more hop oil solubility)
- Higher temperature (more solubility)
- Some fermentation left (mixing effect due to beer turbulence)
- Biotransformation
Mine uthevinger for å pointe ut det dere snakker om i denne tråden ref Lallemand sitt datablad for NE-gjæren, se hvor ordet biotransformation kommer og i hvilken bolk det står under ang når det tørrhumles.
Altså mener Lallemand med dette noe som går i mot det som liksom er en stor del av "greia" med når man skal tørrhumle en NEIPA.
Dette var bare til info. Jeg mener selv hverken det ene eller andre. Men skjønner ikke hvorfor det ordet ikke også kunne stått i den første bolken.