Diatomaceous Earth (AKA DE or Filter Aide) comes in many different particle sizes. The larger the particle size, the more permeable it will be. A 2017 article in Maple Digest suggested that having too fine of a particle size could actually filter out some of the good maple particles and affect flavor. In conclusion, we suggest using a coarser size such as 5000 or 4200 Dicalite. Also, use only Food Grade DE (AKA Human Grade)!
This product is available in convenient resealable buckets from Smoky Lake. Competitor DE is typically sold in a paper sak which tears, gets messy, and is more awkward to work with.