Hi, I'm June from Big Mug coffee. :coffeemug: I'm preparing to open coffee roaster in Santa clara city, CA. County of Snata Clara health dpartment want me submit numbered maufacturer brochures or cut sheets for drip station, dripper, and Probatino roaster. All food equipment must be certified or classified by ANSI, e.g. NSF, ETL, UL. I want to use Hario dripper and chemex. But I couldn't find their number or mark. Is there somebody who know which dripper and drip station has mark like NSF, ETL, or UL. How about Probatino roaster? I can't find an approved mark on spec sheets or brochures. :decaf: