COA – is an acronym for Certificate of Analysis. This is a standard analysis applied to all food grade products to determine the composition of the substance. In the hemp industry the important data points in a certificate of analysis include the following:
Potency – indicates the percentage of cannabinoids present. The two most important are CBD – since that is generally what the consumer is paying for, and THC – in order to ensure that this psychoactive substance is present in concentrations below 0.3%.
Residual Solvents – All hemp extraction requires the use of a solvent (ethanol, butane, propane or CO2). After the extraction process is complete, the lab must “purge” the solvent out of the oil. This is usually done by baking the oil at a low temperature over a 48-hour period until the level of detectable residual solvents falls below a certain parts per million (PPM).
Pesticides – Fortunately, in Colorado’s high altitude and dry climate there are few pests that disturb hemp plants. Hemp grown in Southern states, however, require a greater use of pesticides.
Heavy Metals – may be found in the water in places where hemp is grown. This tends to occur particularly in parts of Europe.
Microbials – UBIX Processing performs microbial testing for Total Plate Count (TPC), Yeast and Mold, E. coli, Total Coliforms and Salmonella.
Below are two sample COA’s:SOUTH PARK LABS 20180123X_1 - Residual Solvents
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