Cold water extraction: Difference between revisions

>David Hedlund
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>David Hedlund
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For improved extraction, it's recommended to do an acetone wash (not covered in this guide) before you do the CWE, but it is not required.
For improved extraction, it's recommended to do an acetone wash (not covered in this guide) before you do the CWE, but it is not required.


# Conditionally, recommended if you want to : Dry the substance, see [[drying and humidity standardization of substances]]. Otherwise, just use a coarse strainer, and then a fine strainer.
# If you need to calculate the loss of drying: Dry the substance, see [[drying and humidity standardization of substances]]. Otherwise, just use a coarse strainer, and then a fine strainer.
# Add the fine powder to a glass jar, and add 10 times more boiling water than the quantity of the substance, and shake well for 10 seconds. This should precipitate the soluble substances in the water.
# Add the fine powder to a glass jar, and add 10 times more boiling water than the quantity of the substance, and shake well for 10 seconds. This should precipitate the soluble substances in the water.
# Let the water cool down to room temperature.
# Let the water cool down to room temperature.