if u are using 91% in winter temperatures it can take upwards of 5 days to evaporate (the alcohol will go, but the 9% water will take forever, this is why in cooler temps use 99% ISO). once its all evaporated u will have a compltely dry pyrex dish with residue all over the bottom and side walls. get a razor and scrape it all together, it should be a light color looking like maple sugar or sand.
scrape it all free of the pyrex dish and into a neat pile in the middle of the pyrex bowl. preheat your oven to 150-200 degrees and give it about 3-5 minutes in there. what u are doing is heating the oil just enough to melt it together, this is not a decarb for eating it like rick simpson oil, its simply just to melt it together so it will be easier to handle later on. pull it out, and the oil will appear darker now, almost brownish. get a razor and scrape it together again and itll stick together, swirl it around a few times with the razor and it will lighten up a little. once its swirled together and looks oily, let it sit out for a bit to cool off. once it cools off i will harden a little and if u slide the razor under it, it should pop off easily and be fairly easy to handle. i personally load mine into a ecig style vaporizer . but u can put small little shards on top of a bowl.
I have people who are avid ear wax smokers comment on the flavor and high of this extract and if they hit it out the ecig they cannot tell the different unless i mention it to them. If you have finished growing, drying and curing, it is time to consume it. There are many ways to consume marijuana, one of them being vaporizing. First of all, what is a QWISO (Quick-Wash ISOpropyl) extract? Cannabis buds consist of two main parts – plant material and, what I like to call, “effective material”, which gives all the desired effects from consuming it. In other words, plant material is more or less useless. An extract (also called concentrate, shatter, wax, oil, budder) basically contains only the desired “effective material”, and is intended for many uses, but mainly for vaporizing. Making extracts isn’t as difficult as you may think, just requires some patience. There are several different methods for making high-quality extracts (other popular being BHO, but it is way more dangerous and complex due to usage of highly flammable butane, so I will stick to QWISO method). ITEMS YOU WILL NEED: Buds, at very least 5 grams of it, though the more the better (10-20 grams is optimal). Isopropyl alcohol, the purer, the better, 99% recommended. You can get it from hardware or electronics stores. You will need around 100 - 200 ml of it per 10 grams of buds. Or 2 sieves – one smaller and one as large as possible, if you’re making over 10 grams. A plate or other flat ceramic or glass surface (note: it must be quite deep, since you will be pouring quite a lot of liquid there). 1 small jar (up to 0.5 litre) and 1 larger jar (0.5-1 litre should be enough). (optional, but highly recommended) a simple air-blowing fan. PREPARATIONS TO BE MADE AT LEAST 3 HOURS BEFORE THE EXTRACTION: First of all, make sure all containers (both jars and a plate) are really clean and totally dry (you want them totally clean, since the unwanted material might get into the extract, causing you problems later trying to remove it, and you want them dry, since water evaporation takes way longer than alcohol). Firstly grind up all your buds into the small jar (ground buds have larger surface area, so it is easier to extract all the goods from them that way). Then put that jar and your alcohol into a freezer for a few hours or just overnight to make sure they’re as cold as possible (don’t worry, isopropyl freezes only at -89 C). Freezing is necessary, since trichromes fall off the leaves of the bud way more easily at low temperatures, making the extraction significantly more successful. Extracting without freezing results in smaller amounts of the final product. You may also want to prepare your larger jar to save time later: take 1 coffee filter and put it onto your jar making sort of a bag (note: I used some thread to make sure the filter doesn’t fall into the jar), or, if you are making lots of extraction, cover entire surface of your larger sieve with filters and place smaller sieve on top of it. ONCE ALCOHOL AND MATERIAL ARE BOTH AS COLD AS POSSIBLE: Pour alcohol into the small jar till all the ground buds are submerged in it. Close the lid very tightly and shake it as hell for exactly 30 seconds (more might result in more chlorophyll extracted, making the final product taste not as good, less might result in smaller amounts of the extract).
Then pour everything through a sieve and through a filter into a jar (you may press the ground material in the first sieve to make it sieve though a bit faster). Yes, this part will be very slow, you will need patience, filtering might take 20-60 minutes. Pour a little extra alcohol into the small jar to make sure there are no left-over trichromes remaining in it and pour that though the filters as well. Cannabinoids dissolve in alcohol (for example, it doesn’t dissolve in water, so we can’t use that) leaving behind “powerless” plant material of buds. Sieve filters the chunky plant material and filter further refines the liquid by removing the tiniest bits of remaining plant (you have to use sieve for chunky parts, since using only a filter will cause it to clog very fast and filtering process might take hours). Since all cannabinoids are dissolved, they are in a liquid state at this point. Coffee filter allows all liquids to pass through it but stopping any solid particles.
Once filtering is over, you will be left with a jar containing a clear liquid with a green tint. You might ask, where the hell is my concentrate then?