Introduction
Welcome to "The rough guide to hash and hash making". The object of this document is to provide easy answers to common questions which have been posted on this forum. It's by no means definitive but should provide answers or a link to the information you are looking for.
I plan to update this document from time to time and welcome constructive criticism or personal experiences which you might have to add. Feel free to PM me. If you have any other questions remember to use the search facility at the top of the forum. Chances are it has been asked before. If not then ask because someone will know.
What is hash and how do I make it ?
Hash or "hashish" is the generic name for the prepared form of glandular trichomes collected from the cannabis plant. It can take on many forms, colours, tastes and smells but is all made from the same thing. The difference in names is primarily linked to how the resin glands were collected from the plant and prepared into the finished product. The process of hash making can be divided into two parts: resin collection and resin preparation. There are four commonly used methods to collect resin glands from plants. These are :
Hand Rubbing
Hand rubbing is probably the oldest method of collection and preparation. Wet plants are gently rubbed until resin glands are excreted onto the hands and fingers. This is continued until an amount can be worked into a lump by using the hands and fingers to heat and manipulate the glands collected. The end product is a dark piece of high quality hash known as "charas". The term "charas", often used to describe South Asian hash which has been produced through hand rubbing, actually means cannabis.
Hand rubbing is considered a "low tech" method of gland collection / gland preparation because in order to do it you need nothing more than a ripe, wet plant and two hands. It is also a delicate operation which, at best will yield low results of medium to high quality hash. Usually hand rubbed charas has a short shelf life because of the moisture left within the final product during the rubbing process. There are however more effective methods of gland collection available these days and so I'm not going to go into much detail.
Sieving
Sieving is a technique which allows for a higher control over resin gland separation and grading than hand rubbing. Most hash making cultures through out the world have employed this method in order to make hash for export or local use as it allows a high amount of glands to be collected from plants in a short time. It is also far less labour intensive than hand rubbing.
Plants are first dried and then threshed or rubbed lightly against mesh or cloth screens of varying sizes. Trichomes and plant debris fall off the plant and through the screens onto collection surfaces. The raw resin powder is collected by grade and pressed using mechanical or hand methods. Mechanical pressing is most convenient if the sieved powder is of lower quality or contains a lot of plant debris because it is more difficult to press using conventional methods. Heat is needed as well as high pressure to compact the resin into blocks or slabs. Commercial hash for export, sieved and pressed hash such as Afghani, Moroccan and Lebanese were often given these names simply because that was the country of origin.
There are a few additional methods of sieving available to the home grower. The Space case crystal catcher is a grinder / catcher which uses a mesh screen to separate trichomes from plant material. There's a large thread here with more information. Another thread worth looking at is the Trich Tumbler.
I use a "bubblebox" which is basicly a box with several screens which divide fallen trichomes by grade. The trichomes are scrapped together into resin powder which is then ready to be pressed into hash or smoked as is. Few shots below showing collected trichomes ..
The bubblebox is not designed to be used as a serious tool for getting the most trichomes out of your bud. It just collects the stuff that falls off between the jars and smoking
Water and Ice Collection
Probably the most well known form of ice collection is by using Bubblebags. I cannot stress enough how good cold water and ice are at removing trichomes from plant material. Using the bags is simple and a high quality product is always collected. Instructions on using Bubblebags and techniques relating to using them can be found here in the bubblebags forum. If bubblebags are too expensive then check out Ice Hash for Free.
Note that the only issue with using water and ice as a method of collection is that it removes the natural taste and flavouring from the resulting hash. This is because the terpenes which create these smells and tastes are water soluble and hence are lost.
Butane / chemical extraction
BHO (Butane Honey Oil - Hash oil) can be created using butane or alcohol extraction and there are several methods available to anyone looking to make it. Most people will have heard of butane extraction using a HoneyBee extractor or a home made chemistry set up. The fundamentals of the extraction process are detailed in a post here by Sun Tzu
Another solvent which can be used for extraction and cleaning is IPA fluid (Iso-propyle-alcohol). Resin glands readily dissolve in this substance and can be stored in liquid form under the correct conditions for years. If exposed to air the IPA will evaporate and leave a sticky goo much like regular hash oil.
Pressing resin powder into hash by grade
Hand pressing hash is in my opinion a labour of love as opposed to a task which needs to be completed. I find it a satisfying pass time and the end result never fails to please. I know the resulting hash is of the highest quality as well as being unadulterated by contaminating products.
To begin the process of pressing you will need a large plate or clean hard surface to work over. Ideally light in colour. There's going to be a fair amount of resin powder being scattered about the area as you work and you want to be able to collect it with little contamination from hair, dust, leaf etc. It's a good idea to roll a few smokes before getting to work because your fingers are going to be very sticky for a little while. It is also a good idea to scrub your hands clean before handling any resin powder because if you have any dirt / dead skin on your hands it's going to be pressed into your hash.
Varying grades of resin glands have varying properties and looks. Each of the "cakes" shown below has been extracted using Bubblebags and lightly pressed flat to allow drying. The fine quality grades are the 25 micron, 45, micron and 73 micron. Abbreviated to Au and shown accordingly from left to right in the pictures below.
A mix of 25 Au and 45 Au Bubble ready to be pressed
73 Au Bubble ready to be broken up and pressed