Can Hemp Flower Make You Fail A Drug Test?

The short answer is yes – even the trace amounts of THC in CBD flower can result in a positive drug test. Not everyone who uses hemp flower will test positive on a drug test but many do. For some, the benefits outweigh the risks. We just think it’s important for users to understand that the risk of failing a drug test is there so they aren’t surprised if it happens to them.

Why Would Hemp Flower Trigger a Positive Drug Test?

Hemp flower includes all the naturally-occurring cannabinoids, terpenes, and flavonoids from the cannabis plant that produced it. THC is one of those cannabinoids and is typically what is being tested for in a drug screening.

Hemp plants are specifically bred to be high in CBD and low in THC. The product sold to consumers must have less than 0.3% THC to be legally sold as hemp-derived flower. But even trace amounts of THC can trigger a positive drug test. 

The small amounts can also build up over time. So you shouldn’t assume that you won’t test positive in the future just because you haven’t in the past.

What Are The Odds That I’ll Test Positive?

There are many variables that will determine the risk of testing positive. How much you use and how long you’ve used it are certainly major factors. The type of drug test its lower detection limit also come into play. Individual factors are also involved such as your body chemistry and the rate at which you metabolize THC. 

The bottom line is that if you are consuming any THC, even trace amounts, there will be some risk. But it’s impossible to calculate your odds of testing positive with any degree of certainty because of the many variables involved.

How Long is THC from Hemp Flower Detectable in a Drug Test?

The amount of time that THC can be detected in a drug test is based on your frequency of use, the type of test, and your body’s metabolism. According to, THC is detectable in urine and salive tests for anywhere from 3 days for occasional users to more than 30 days for heavy users. It’s up to 25 days for blood tests and up to 90 days for hair testing.

Tips for Getting THC Out of Your System Quicker

Increasing your intake of water, exercising, and eating healthy may help accelerate the cleanse and detoxification process. Be wary of any “quick fix” products that make inflated claims and promises. These have generally been proven unreliable and are often just a waste of money.

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