Polishing Dark Extracts: Carbon Scrubbing & …
2018-9-22 · The DE is a very fine powder, almost like flour, and when mixed with ethanol and properly filtered with a vacuum assisted Buchner funnel will form a filtering cake that makes for very fine filter media. I layered a Buchner funnel with a 3 micron filter paper, then a coffee filter on top of it to help hold the DE in place and form the filter cake.