Alphaclar S is a single –use cross linked polyvinylpyrroidone (PVPP). It is a colloidal haze stabilizer which can increase the shelf life of beer. Alphaclar S absorbs the haze-active polyphenols which would otherwise react with haze-active proteins in filtered beer to form colloidal haze during storage.
Use 7.5-12.5g per 25L. Can be used in conjunction with whirlfloc or added to fermenter