All we want to do is get all the precious dmt out of the MHRB. That is easy when you have water ! 150 g MHRB will yeild 1.05 - 1.2 grams of pure, white dmt, if you do it right... THE MOST IMPORTANT FACT ! - dmt is soluble at pH 2 - 4..! At pH 2 - 4 all the dmt is happy and safely dissolved, invisibly in the acidified, PURPLE extract. The acidified water protects the dmt since at pH 2 - 4 dmt has a 1+ charge. So you make a crock-pot of ACIDIFIED water first. This is stable enough that it can be stored for a while in the fridge ... MHRB does not need defatting - it does have some yellow, fragrant oils, and these are GOOD ! - the oil pools out in the evpoartion tray, or you can freeze-sep to get no oils. The oily dmt is definately different in its effects, than the white, oil-free crystals. The lye stage needs to be quick !.The only reason for the jet-black coloured Lye stage, is to make dmt insoluble in water. This stage is a torturous, oxidatively-scary and dmaging time for the precious dmt molecule... ! Lye is scary stuff ! Dmt is in hell when the solution goes black ! dmt needs the naphtha layer to be there as soon as the pH goes alkaline ... at pH 10 and above dmt becomes insoluble and mixes with all the grunge in the black water if there's no naphtha layer around !. A pH of 10 to 11 is Bad enough ..! so if the basified solution is warm, ( say 22 - 50 deg C) then pH 13.5 is really really chemically damaging to dmt ! A pH of 13.5 - 14 is 1000 to 10,000 times more alkaline than needed ! Apparently those lye-and naphtha extracts left over night will yeild cruddy, cob-web like crystals - (lye contaminated)... Lye is a dangerous contaminant you have to 'wash' out, causing one to loose even more yeild etc etc ... But , are there any bonafied chemists out there..!? I'm just one opinionated kitchen chemist, here, trying to get to teh bottom of it ... And alongteh way, I will try to convince people to be safe and informed, and not spreading bad ideas ... for eg: I would never throw out 50% or more of my precious yeild or valuable MHRB ! ... or I never risk health and sanity of me and my fellow lab rats... simple ... That Erowid Tek is a hack method - I liken it to grinding the gears because you won't take the time to LEARN HOW to drive a standard car ... !