Source: (Hashmouf) http://forum.grasscity.com/
Hashmouf’s method detailed below is known as the QWISO (Quick Wash ISOpropyl) method, which refers to the “quick wash” in isopropyl alcohol, where the trimmings soak in the ISO for a brief period, while the solvent extracts the trichomes which form your hash. I’ve formatted the guide below to be easier to read and navigate.
As simple a technique this may be there are 3 golden rules to remember for optimal quality.
- Quality trimmings or buds
The higher quality of trimmings equals the higher quality of hash
- Proper equipment
The right tools make the extraction easier and preserve purity of the hash
- Time and patience
By rushing the process you will lose quality and have a low grade hash
OK so now that we have gone over the basics for making Quality QWISO lets go over the equipment list.
Here are some pics of the strainer filter assembly
Once you have all of your equipment ready the QWISO making begins. Follow these 10 simple steps precisely and you will have Quality QWISO HASH every time.
1.) Place Dried trimmings or buds in freezer for 30 minutes.
2.) After your trimmings have been in the freezer for 30 minutes, Carefully transfer them into your jar.
3.) Pour the Isopropyl Alcohol over the trimmings until completely covered.
4.) Allow to soak for 30 seconds, no more no less.
5.) Shake as hard as you can for 30 seconds, no more no less.
6.) Pour into strainer filter over evaporation plate and allow to fully drain
7.) After you filter the extraction on to the evaporation plate, Carefully move to a safe place and position in front of a small fan allow to evaporate and dry by air for 24 hours minimum [NEVER USE HEAT FOR EVAPORATION !!!! this will lower the quality of your QWISO]
8.) When the alcohol has evaporated and the extraction has fully dried for a minimum of 24 hours you are ready to harvest your QWISO HASH.
9.) Once the QWISO is ready for harvest, Carefully use a razor blade to scrape the plate.
10.) Top off a bowl or a blunt with some high quality QWISO HASH and enjoy !!!!!!
If you have a high grade trimming with high trichome concentration a second wash is recommended. Even though the quality will be lower then the first wash the second wash will still produce a handsome reward.
For a second wash place your trimmings back into the jar, cover with isopropyl alcohol and soak for 30 seconds then shake for 30 seconds. Repeat filtering process and let evaporate and dry for 24 hours minimum. After the evaporation and drying is complete harvest your second batch of QWISO.
Here are some pis of my second wash of the same trimmings.
Finally, a quality comparison from 3 different washes of the same herb. The first wash is on the left, the second in the middle, the third on the right.