This is usually way more expensive, but sometimes drops to a low price ($4). I've got some even higher quality paper by just saving it my cart and waiting for it to drop. Here is the Amazon link. Shows 9 in stock. This size is a little small for making cones with it, but great to cut down for a press or something. Bigger, higher quality paper of 1-2 microns can run $40-100. (edit: it is a pack of 100, not 10) price has gone back up some since posting, but still around half of usual cost.
So, i can just print it out?
I tried printing the page, but it doesn't work well as a filter. At least they didn't charge my credit card.
Did you cut the page into a circle? Because it won't work if it's not a circle
Did you entire pack of ten print or did you just get one?
Two micron is like nothing ... how do you even get anything to go through it? Doesn't it get clogged like instantly?
Most people use more like 20-30 micron don't they?
No. PG will gravity feed through it overnight or so. Or you can use an Aeropress or vacuum system. The finer you filter, the less gunk up you get, to a point. This paper isn't as high of a grade, so it'll flow through faster than higher grade filter paper.
PG ... the only PG I know of is propylene gycol lol.
I have a buchner funnel that's 30ish microns and even that would not gravity feed but I guess that's because the filter is glass and thick?
if you fold filter paper in to a cone, like a funnel, and put it in a cup ( I usually set the paper in a funnel for support) PG based extractions will slowly feed through. You have to filter with something bigger (glad I caught the n instead of b that I typed there) first to get all the material out though. (edit: otherwise, I use the paper in an Aeropress)
What exactly do you use these for? Can't I get a similar result with coffee filters?
Not really. Coffee filters leave way more stuff behind. I don't have anything (tobacco) macerating right now to show a comparison. Lab paper gives a cleaner tasting, less gunking extract. I wouldn't buy a $40 pack of paper unless you're doing a lot of extractions and have a vacuum or press to use, but for this price, its at least worth trying out for people using just coffee filters. This is still lower grade, medium flow paper, so it's not as slow as the higher grade lab paper. edit: the price has already gone up to $8, it was $4.30, usually closer to 15-20.