Brettanomyces creeping up on you?
It’s that time of year again when this yeast can rear its ugly head. Brettanomyces can produce the volatile phenols 4-ethyl phenol (4EP) and 4-ethyl guaiacol (4EG), which are responsible for sweaty, horsey or medicinal off-flavours in wine. Right now red wines should have completed primary fermentation and have been transferred to barrels for oak […]