Ice Water Extraction~
This method includes using dried
flowers and plant clippings with iced water and “washing” the material to gather
high potency resin glands for use as a concentrate.
When you isolate resin glands from other
material plants produce, you get the purest dose of high quality resin that can
be derived without using solvent-assisted extraction.
When you use iced water to make bubble, you’re
using temperature, stirring, and wet sifting to isolate the resin glands.
The bubble production process involves putting
plant material in a “work bag” along with plenty of ice, then stirring and
settling the mixture for a period of time.
You’d be surprised how many resin glands are on
leaves that get manicured off and thrown away. Water extraction is a way of
getting more usable product from every harvest.
As an added benefit, water-washing removes
contaminants and other materials that can affect your health. Because of this
washing effect, ice-resin doesn’t have much, if any, taste or smell.
Icewater extraction takes a couple of hours,
some preparation, ice made from pure water, and multiple steps.
Sub-critical CO2 is
becoming an important commercial and industrial solvent due to its role in
chemical extraction in addition
to its low toxicity and environmental impact.
The relatively low temperature of the
process and the stability of CO2 also allows most compounds to be
extracted with little damage or denaturing. In addition,
the solubility of many extracted compounds in CO2 varies with
pressure, permitting selective extractions.
Subcritical carbon dioxide can be
used as a more environmentally friendly solvent. Subcritical carbon
dioxide is used as the extraction solvent for creation of essential oils and
other herbal distillates. Its
main advantages over solvents such as butane, alcohol, hexane and acetone in this process are that it
is non-toxic and non-flammable.
Subcritical CO2 is
chemically stable, reliable, low-cost, non-toxic, non-flammable and readily
available, making it a desirable candidate working fluid.
Dry Ice Extraction~
Dry ice, sometimes referred to as
"cardice" (chiefly by British chemists),
is the solid form
of carbon dioxide.
It is used primarily as a cooling agent. Its advantages include lower
temperature than that of water ice and not leaving any residue.
Just like with
Ice Water Extraction When you use iced water to make bubble, you’re using
temperature, stirring, and wet sifting to isolate the resin glands. Dry
ice sublimates at
−78.5 °C (−109.3 °F) at Earth atmospheric pressures.
This extreme cold makes
the solid dangerous to handle without protection due to burns caused by
freezing. USE CAUTION WHEN USING THIS EXTRACTION METHOD.