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Cold water extraction: Difference between revisions
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[https://en.wikipedia.org/wiki/Cold_water_extraction Cold water extraction] (CWE) is useful to filter cutting agent that doesn't dissolve in water. For example, caffeine is a common cutting agent with poor water solubility. | [https://en.wikipedia.org/wiki/Cold_water_extraction Cold water extraction] (CWE) is useful to filter cutting agent that doesn't dissolve in water. For example, caffeine is a common cutting agent with poor water solubility. | ||
# For | # For lumped substances: Break them apart. | ||
# Sift the powder with a coarse strainer, and then with a fine strainer, to make them easy to dissolve. | # Sift the powder with a coarse strainer, and then with a fine strainer, to make them easy to dissolve. | ||
# 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. | ||