In order to account for the low CBD content of these hemp plants, manufacturers have to process large volumes of raw material at a time, with the idea of extracting just enough CBD so that they can label their product as a “CBD oil.” While this method is fine in theory, what ultimately ends up happening (unless the manufacturer’s extraction methods are state of the art), is that traces of chemicals cane end up being left over in the final product. These chemicals can potentially contain harsh solvents such as butane, hexane, and propylene glycol, which has been known to break down into carcinogenic (cancer-causing) compounds like formaldehyde and acetaldehyde.
It depends on the testing standards of the lab administering your drug test. Most companies only search for the cannabinoid THC, which is the main psychoactive component of the marijuana plant. While Medterra products are THC free, there are some testing facilities that check for a spectrum of cannabinoids and could trigger a positive drug test. By law, you are allowed to ask the facility what cannabinoids they test for. If you are uncomfortable with that, you can call and ask anonymously. We suggest contacting the testing facility if there is any concern.
We gave the highest points to companies that use a CBD distillate for their tinctures. The process of distillation creates an extract that is pure on a molecular level. There are people who think distillate is too pure, and that a full spectrum decarb produces a more effective tincture. But in light of the inconclusive evidence, we prefer a distillate. The process allows for a high degree of control as to the finished product. It’s also odorless and tasteless, so those tinctures tend to taste better.