Cannabis Cleaning Process

The most important thing to do before you begin to cook with cannabis is to clean your herb before it is infused into oil, butter, or directly into any of your food. Just as you need to clean your fruits and vegetables before you eat them to remove surface contaminants, you need to to clean your cannabis.  Here’s how:


What You’ll Need:

Distilled water

Tea strainer

Medium/large-sized pot

Bowl filled with ice water

French press coffeemaker

Heat-resistant glass, ceramic or tin pan

Aluminum foil



Gently pull apart your cannabis and soak it in distilled water for 36 hours. Change the water every 12 hours. This removes a lot of the surface impurities and chlorophyll that’s responsible for the grassy, bitter taste.  


When  the water in the french press runs clear, transfer the cannabis into a large tea strainer.


Bring water to a boil in pot. Place the tea strainer in boiling water for five minutes.


Immediately remove tea strainer after five minutes then place in bowl of ice water for one minute.


Remove from ice water. Pour distilled water over the tea strainer to rinse out any residual impurities. Remove cannabis from the tea strainer and gently squeeze out excess water.


Pull the wet cannabis apart and place on a sheet pan lined with double paper towels. Let sit for an hour, so the paper towels can absorb the excess moisture.


Preheat oven to 240º F


Remove paper towels and cover pan with light aluminum foil


Place pan in oven and dry/decarb for 90 minutes. Shut the oven and let it sit for another 30 minutes. Your cannabis should be clean, dry and ready to infuse.   

Emerald contributor since January 2017


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