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PHOSPHORIC ACID 75% - acid washing
PHOSPHORIC ACID 75% is a clear solution made from food grade phosphoric acid and is used in the brewing industry for acid washing yeast.
Acid washing is a tool that brewers use to eliminate contamination bacteria from pitching yeast. Acid washing kills bacteria with minimal harm to the brewing yeast, providing that the process is carried out correctly. The effectiveness of the process relates to the time and temperature it is carried out, at and the pH achieved.
NOTE: Acid Washing will not remove wild yeast.
Method of use
Preparation is essential. Ensure that you have the yeast and the acid fully chilled as the wort nears the end of boil, and start the washing process at this time. The washed yeast will then be ready for pitching when the wort is cooled.
Do not be attempted to wash yeast on a quiet day when you are not brewing. Viability of washed yeast will fall markedly as storage time increases.
DO’s of acid washing:
DON’TS of acid washing:
Common Faults and their solutions
pH of yeast too high
Cautiously add more diluted and chilled acid with constant stirring
pH of yeast slurry too low
Reduce the contact time between acid and yeast of add more yeast.
Temperature of yeast slurry too high
Reduce the contact time between acid and yeast
Storage & Shelf life
This product is a hazardous material, therefore an additional delivery surcharge will be added to the order.