I need some explanation please.

I did some reading on stb years ago on some drug fourm and just modfied my extracton as i went. I use acrb and i do a stb and i take all my pulls into a pyrex trey take it to my garage let the naphtha evap on a heating pad with a fan blowing on it. i always get nice large circluar crystals i get around 2 grams per 100 grams of powder. It comes out a off white waxy crystal. Is this okay i just recently joined these fourms in planning to get back at it, but i was doing some reading and most everyone here uses a jar and does a freeze precip or room temp precip and saves the naphtha . Why is this done?

I do freeze precip to save/ reuse the solvent. As I go through the steps (stb, mini a/b) i have very little waste. So I'm not buying gallons and gallons of solvent. Works well and has never gave me any issues. Plus with freeze precip you can put a lid on your container further ensuring no contaminates get in it. Dust, bugs, moisture etc. are always a risk when using a fan to evap. But other than that I guess it's just personal preference. Oh it also cuts down on the smell, I'm sure your garage smells heavy of solvent during the evap. Just do what works best for you but if your planning on getting back to it, probably good idea to refine your techniques, just my opinion. Hope this was helpful and good luck.

IMO a ATB is the way to go with ACRB , although a 2% yield from a stb Tek is hard to believe but stranger things have happened I don't worry about how much solvent I use as we're I'm from its plentiful and cheap but others aren't that lucky , but after I perform my ATB Tek followed strt up with a mini AB then I just let it evape fully to get the most beautiful large chunky heavy crystals ever ł




Lllll

Do you no freeze precipitate no more earthwalker