Hi everyone. Two weeks ago I asked here through the list where to get a biggish sheet of filter paper. Thanks to your answers, I was able to find a 58 x 58 cm (approximately 23 x 23 in) sheet at a chemical products shop. When searching, I learned that there's a wide variety of filter papers with different characteristics, many of them used in different types of laboratories for different purposes.
The problem is, this shop actually doesn't know anything about the filter paper they're offering me. They can't tell me it's characteristics and use (its data sheet); not even its brand! My intention is to use the paper to try to make an origami coffee filter (practical origami). But I don't want to make myself or others sick by tasting the coffee from my filter. That's why I ask those of you who know about laboratories and their filter papers: *can drinking coffee made from certain types of laboratory filter papers be hazardous for humans?* As always, you can reply to me privately instead of directly through the email list if you prefer. In that case, here is my email address: gerardo(a) neorigami.com Thank you in advance. -- *Gerardo G.* gerardo(a)neorigami.com *Knowledge and Curiosity in Origami:* *six private classes online* <https://sites.google.com/neorigami.com/classes> "(...) It doesn’t happen often, but when it does, it takes your breath away and fills you with the true joy of *origami*. I experienced this in my lessons with Gerardo G. I wouldn’t trade it for anything. Gerardo is (...)" *C. R.* *Read the full review* <https://sites.google.com/neorigami.com/classes#h.q2mt4npahmc2>
