Jack C. purchased his worm farm in 1992 and through trial and error (and a lot of research), he determined the best feedstock for the worms was precomposited dairy manure. After visiting with Peter Moon in 2002, Jack constructed an aerated bin system and it has proven to be the missing link needed to optimize the time / temperature requirement for precomposting the dairy manure. For more information, visit: www.sonomavalleywormfarm.com.