Cannabis Third-Party Lab Tests: Why They Are Important

There are a lot of unscrupulous vendors in the delta 8 space right now.Â
Brands are taking advantage of inexperienced customers by selling lower quality or mislabeled products, hoping to turn a greater profit.Â
Even experienced individuals can struggle when looking for a new source to purchase delta 8 THC since it’s challenging to ascertain a particular vendor’s quality without trying their products first.Â
Fortunately, reputable companies in the cannabis industry rely on cannabis third-party lab testing to verify quality and assure consumers they’re getting exactly what they pay for, especially when it comes to medical marijuana.
Below, you’ll find a brief overview describing the basics of third-party testing and why it’s essential.
What is Third-Party Lab Testing?Â
When a company produces a new batch of delta 8 THC, they can send a sample to a cannabis testing lab or hemp testing services where a disinterested third party independently analyzes it.Â
Third-party testing facilities run a battery of tests on the products they receive, typically without knowing where the product comes from. The most common form of analytical testing is High-Performance Liquid Chromatography (HPLC) which doesn’t require high temperatures and, therefore, gives the most accurate breakdown of a sample’s major and minor cannabinoids.
Once the laboratory completes the HPLC, it sends a detailed report of the cannabinoid testing and quality testing back to the company. The lab issues a Certificate of Analysis (COA) outlining detailed information on cannabinoid concentrations, potency, and the presence of harmful contaminants. This section of the report is crucial for accurately labeling the potency of the product.Â
Additionally, a separate section of the report covers contaminating substances that could taint the product or make it dangerous to consume (more on this later).Â
The Delta 8 THC manufacturer must decide whether to publish the report or not.Â
Some companies might not publish the information if the findings indicate a lower cannabinoid concentration or show the product contains worrying contaminants. Not publishing the report buys time, so the problem can be located and fixed before submitting a new sample and repeating the process.
How the Testing Process Works
Once the independent testing lab receives a sample, it undergoes rigorous tests, including:
- Cannabinoid testing (measuring THC, CBD, delta 8 THC, and other cannabinoids)
- Contaminant testing (heavy metals, molds, bacteria)
- Pesticide testing (ensuring no harmful chemicals remain)
- Residual solvents analysis (checking for chemical solvents used during extraction)
These testing facilities use state-of-the-art equipment to ensure accuracy and reliability. Results are typically sent back to the cannabis company, which then decides whether to publish them publicly.
Why Lab Testing Is Important
Reputable delta 8 THC companies always employ third-party testing because it shows customers there’s nothing to hide, proves potency, and guarantees that no contaminants have found their way into the product during production.Â
Third-party lab testing is the only way to know what’s in the delta 8 THC product you’re buying. In-house testing can be purposefully inaccurate or misleading, and some companies don’t publish any testing results, leaving potential customers entirely in the dark.Â
Only purchasing products with published test results saves you from overpaying for low-quality delta 8 THC products or consuming dangerous contaminants and chemicals.
In the growing cannabis and hemp testing landscape, third party testing verifies all the claims of the company and boosts cannabis consumers’ confidence that the cannabis industry is legit.
1. Contamination & SafetyÂ
Without quantitative test results, it’s impossible to know what a sample of delta 8 THC contains.Â
Even well-meaning companies run into quality control issues occasionally and could be unknowingly selling dangerously contaminated products. Other companies intentionally forgot to follow safety guidelines to cut costs, leaving the customer potentially at risk.Â
Contamination can come from various places, and lab testing is crucial for discovering any foreign substances.
Hemp Plant ContaminationÂ
Hemp and cannabis plants absorb heavy metals and pesticides from the soil they grow in. Plants grown in heavily contaminated soil could quickly become dangerous to turn into consumable products.Â
The legal limits on ingesting heavy metals are extremely low due to the extensive harm they cause — even trace amounts can cause serious side effects.
List of potential heavy metal contaminants:Â
- Cadmium
- Lead
- Arsenic
- Mercury
- Copper
Processing Contamination
In addition, some production pipelines use solvents and hydrocarbons to facilitate the extraction process, and without proper care, these dangerous chemicals could make their way into the final product.Â
Most lab reports contain a section indicating whether the product passes or fails based on whether concentrations of harmful substances exceed standard limits.
Potential processing contaminants:Â
- Hexane
- Butane
- Propane
- Heptane
- Ethanol
- Ether
Microbiological ContaminationÂ
A final concern is biological contaminants like mold, yeast, and salmonella.Â
These contaminants are less of a problem than heavy metals or solvents since they’re generally killed during processing.Â
Most lab reports have a separate section detailing microbiological contaminants and whether the present concentrations exceed safe levels.Â
2. Product Potency
Lab testing also verifies that a product’s potency matches the claims made on the label. When you purchase delta 8 THC, you usually want to compare similar products based on the cost per mg of the product, but that can be misleading.Â
You actually want to compare the price per mg of delta 8 THC. The only way to know how much delta 8 THC a product contains is to confirm the concentration with a lab report.Â
You should avoid using any company that sells products without published test results since you could be overpaying for products with low potency, thereby overspending on subpar products.
3. Delta 9 THC Content & Legality
Another important consideration is the local and federal laws that regulate delta 9 THC concentration. As per the Federal Farm Bill of 2018, hemp and its constituents are legal, provided the delta 9 THC content is lower than 0.3% by weight.
Third-party test results are the only guaranteed way to ensure the products you buy are following federal and state laws.Â
Of course, if you live in a state where recreational marijuana is legal, this is not a concern for you.
4. Company Transparency
Aside from the important safety aspect, third-party testing is a good way to prove a company is transparent about its operation. It shows that a company has the integrity to remain entirely transparent and honest about its products.Â
The fact of the matter is that getting these tests done is both expensive and tedious. It can cost thousands of dollars for a single test and can take months to complete.Â
Testing shows a company has initiative and cares about the integrity of the products it’s selling.Â
Most of the companies that don’t test also exert little to no effort elsewhere in the company. Poor brand and website design, lack of product information, and more. Who knows where else they’re cutting corners.Â
Summary: Is Third-Party Testing Important?
Yes, third-party testing is crucial. There are too many opportunities for delta 8 THC to be contaminated or made dangerous from hemp seed to the final product.Â
Pesticides contaminate, or chemicals making products seem more potent often “find” their way into delta 8. Third-party lab results are the only way to guarantee the safety of a product.
Besides, who wants to waste money on delta 8 that isn’t potent? Stick with reliable online vendors that are transparent with lab results.
Frequently Asked Questions
1. Do all cannabis companies use third-party lab testing?
Not always, no. Unfortunately, some companies skip third-party testing entirely. Trustworthy brands usually get their products independently tested, though, because it’s the best way to prove they’re safe, high-quality, and actually contain what they claim.
2. Why should I avoid buying cannabis products from gas stations or convenience stores?
Products from gas stations or convenience stores usually aren’t tested properly, and quality control can be pretty questionable. That means you’re more likely to end up with something ineffective, mislabeled, or even unsafe. It’s smarter to buy from reputable dispensaries or reliable online brands that clearly show testing results.
3. Can cannabis products contain pesticides if they’re labeled “organic”?
Surprisingly, yes. Even if a product claims it’s “organic,” that doesn’t necessarily mean it’s pesticide-free unless it’s verified through third-party lab tests. Proper independent testing is really the only way to guarantee you’re getting cannabis products without harmful pesticides or other contaminants.
4. How can third-party testing help me choose cannabis products for pain relief?
Third-party testing lets you know exactly what’s in the cannabis product, including precise cannabinoid levels like THC or CBD. This is especially helpful for pain relief because choosing the right potency and cannabinoid balance can make all the difference. With test results, you can be confident the product matches your needs instead of just guessing.
5. Is cannabis and hemp testing mandatory in the cannabis industry?
It depends on the state, because laws around testing cannabis and hemp vary quite a bit. Some states require it by law, while others don’t have strict rules yet. Even when testing isn’t mandatory, trustworthy cannabis companies usually test their products voluntarily through reputable hemp testing laboratories to ensure quality and safety, protecting themselves and their customers.