The cost is about on par with the plexiglass. Make sure you use heatproof safety glass. Do you have to have special heat resistant glass? It was safety glass and a low iron glass to avoid a green tint. Where did you get the glass and how much did it cost for a piece that large?
Today, these concentrates don’t look much different than they did at their inception. That said, they have changed over time.The production of extracts in the U.S. evolved from crude practices likeopen-blastingto safe, highly-controlled lab methods like the advanced closed-loop extraction syste...