Cannabis extract and extraction in Canada. Â Lots of people want to know how to concentrate CBD and THC from Cannabis. Â There are many ways that people achieve high THC and CBD concentrates. Â Some common methods that people are curious about are olive oil extraction, liquid and cannabis oil alcohol extraction. Â One of the cleanest ways to do extraction is with cold water for cannabis. Â Cold extraction cannabis oil is some of the highest quality and easiest to smoke. Â When extraction thc from cannabis you can get a full extract of cannabis oil. Â Full spectrum is when all the cannabinoids of cannabis are kept in tact to create the entourage effect that medicinal users are looking for. Â Some other methods are more to do with vaping. Â These include propylene glycol and vegetable glycerin. Â These are not extractions that we currently practice, we prefer pure Co2 extraction methods. Â Where can you buy full extract cannabis oil? Â You can buy it here with Canada Wide Weed. Â We have by far the best quality full spectrum cannabis oil in Canada. We carry absolutely no butane extracts here at Canada Wide Weed.