Solvents are unsafe for human consumption and are therefore monitored in hemp products. There are different types of solvents, with different levels of acceptability in extracts. For example, level 1 solvents should never or almost never be found in extracts. These are things that pose the greatest risk to humans or the environment, like carcinogens. Level 3 solvents are okay to use in extraction.
The solvent analysis is performed in a lab using slightly different tests than those used to perform the cannabinoid profile. The lab test can be done at the same time, though, and the results will come as part of the same analysis. The solvents measured will be listed with a pass or a fail value next to their names, unlike the cannabinoid profile, which will have percentage values.
#3 Pesticides and Metals
Hemp and cannabis extracts need to be tested for pesticides and heavy metals. Just like with food crops, regulators want to make sure that consumers aren’t exposed to dangerous substances. The COA lab test will confirm whether or not there are dangerous levels of pesticides or metals in an extract. Like with the solvent test, the extract will be given either a pass of fail.