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Sure, I spent a year making all kinds of extracts and tinctures and reading endless forum discussions about it. There is a great technique called the Quick Wash Ethanol Extraction Technique. QWEET. There are other methods that work, too, but this one is my stand-by now. Feel free to ask if anything is unclear.

Anyway, you basically use 190 proof grain alcohol chilled to 0 degrees F in a freezer. You then decarboxylate your crumbled plant material for an hour at 240 degrees F in your oven, then freeze it, too.

In my recent batch I had a couple ounces of Charlotte's Web flower, so I crumbled that into a half gallon mason jar after the decarbing process, then put it into the freezer, too.

So you end up with two things in your freezer at zero degrees:

• 1 bottle with 500 or more ml of grain ethanol. A fifth is 750 ml.
  
  
• 1 half gallon mason jar containing 60 grams (2 oz) of crumbled decarboxylated cannabis
  
  You should also have another 2 jars to collect the filtered extraction. They can be quart jars.
  
  After things have chilled to temp, the process goes like this:
  
  

1. Bring out the frozen jar of cannabis and the bottle of chilled ethanol. Have the second and third jar ready. You now pour the ethanol into the jar with the cannabis until it is just covered, no more. Just enough for it to slosh a bit. You slosh it around in that jar for one minute. Some people don't even do it for a full minute, but I do.
   
   
2. This slurry is then quickly poured through a small kitchen strainer into the clean empty jar. This is just a pre-filter to remove most of the plant material. Let the ethanol drain out of the material, then discard the spent cannabis.
   
   
3. The third empty mason jar is now covered by one of those personal coffee filter holders, with a [quality unbleached coffee filter] (https://www.amazon.com/If-You-Care-Unbleached-Filters/dp/B005P0FTYM/ref=pd_sim_79_5?_encoding=UTF8&pd_rd_i=B005P0FTYM&pd_rd_r=6a4bbfb5-cf5c-11e8-ab44-9143b7b890b1&pd_rd_w=AdTtr&pd_rd_wg=mHLjJ&pf_rd_i=desktop-dp-sims&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=18bb0b78-4200-49b9-ac91-f141d61a1780&pf_rd_r=Q31XVYZ0VWC9SAXJVC0F&pf_rd_s=desktop-dp-sims&pf_rd_t=40701&psc=1&refRID=Q31XVYZ0VWC9SAXJVC0F) in it. Start pouring. This takes a while, so you pour an amount in and wait for it to drain, then add more, etcetera. Eventually it has all been filtered and is in the third jar.
   
   After that you can do a few things. It is technically already a tincture, but you can evaporate off some alcohol to concentrate it more. You can also turn it into thick oil or dabbing material by pouring it into a clear pyrex baking dish and letting all of the alcohol evaporate. The longer it sits the thicker it gets. You then use a razor to scrape it up.
   
   For a truly ideal tincture I will evaporate off all of the alcohol as described, because frankly alcohol tinctures DO taste like shit. I scrape up the thickened oil and then dissolve it into 60 ml (two ounces) of MCT oil. It easily dissolves with just a bit of heat and stays that way, and there is very little taste at all. Now it can be used sublingually for maximum absorption. You can even get all fancy and add flavors. 2 or 3 drops of this oil-based flavoring is ideal.

Here's how I've gotten the best results:

1. Use 99% ISO
   
   2.Freeze everything. Take an empty freezer, put your trim in large mason jars about 1/3rd full, put a pack of non-bleached coffee filters in there and your wire mesh strainer and about 10 short wide mouth mason jars with their lids.
   
   
2. Be Patient, wait a day for everything to really freeze.
   
   
3. Put on latex gloves and then a pair of cloth gloves. The latex is for the iso, the cloth is to insulate the jars from the heat coming off your hands.
   
   5.Pour the ISO into the trim jars until the jars are 1/2 full
   
   
4. Shake for 30 seconds
   
   
5. Pour out the whole thing into another mason jar just with the wire strainer at first.
   
   
6. Pre-make like 6 short wide mouth mason jars with coffee filters: take out he disc in the lid and make a basin in the coffee filter with one hand and screw the outside of the lid on with your other hand.
   
   
7. Run the strained iso into the coffee filters, move from one to the next when your coffee filter basin fills up, you can move quick in between and then come back around because the first one was draining when you were filling up the other 5. You want to move quick to minimize heat transfer from your hands into the jars.
   
   
8. Pour all the one-time filtered iso into one jar, repeat step 9. I've found that I don't get much if I do it 3 times so I only do it twice, but you can go 3 and get a little bit more shit out of there.
   
   
9. Make a water bath with 2 pyrex dishes. Float one in water, then pour your strained ISO into that. Put this on an electric skillet next to a window. Face a fan toward the window so all your evaporating iso blows outside.
   
   
10. While the oil is still a liquid, transfer it to parchment paper (someone correct me if it's wax paper)
    
    
11. get out a heat gun and blow the liquid around the paper until you see it start to boil. That initial boiling is the iso coming out, but immediately after that the thc starts to vaporize. You should barely smell the smell of vaped weed.
    
    14.use a razor blade or other scraping tools to move around the wax and purge it
    
    
12. set it on a metal surface, like a washing machine, and use a dabbing tool to roll your qwiso off the partment paper.
    
    I've gotten great pull-and-snap oil out of this method, and if you overdo the heat gun you can get straight shatter.