The solution option will depend on whether a craft brewer wants to recover the beer from the spent yeast.
Different options can be considered and will depend on end-use specifications and requirements (e.g., % moisture limits).
Did you Know?
Low moisture yeast solids can be mixed with spent grains and sent to farmers for use as feed (to ensure the health of the animals, the yeast component is usually limited to 3 – 4% of the total volume of spent grain).
Craft brewers should consult with farmers and their veterinary support before considering this option.
Since spent yeast slurry is very wet, consult with the biodigester operator to confirm if they can accept it.