Effect of sterol biosynthesis-inhibiting (SBI) fungicides on the fermentation rate and quality of young ale beer

► We study the influence of five SBI fungicides on the fermentation and quality of young ale beer. ► Even at low level, the fungicides provoke sluggish fermentation from the three days onwards. ► Noticeable differences in the extract and attenuation values were found in all treated samples. ► Colour intensity and tint values were statistically different in the beer containing fungicides.