Full spectrum carts: the short answer
A full spectrum cart is a vape cartridge filled with hemp extract that keeps the plant's mix of cannabinoids, terpenes, and plant waxes. Federal law sets the delta-9 THC limit for hemp at 0.3% on a dry weight basis. A cart under that limit can be sold in many US states. State rules differ. Vape carts hold 0.5 mL or 1 mL of oil in a glass or ceramic tank. Most use a 510 thread. Some use a brand-specific pod. Labels list milligrams of CBD, not milliliters of oil.
full spectrum cannabis cartridge
What a full spectrum cart contains
Full spectrum oil starts as hemp flower. The extractor pulls cannabinoids and terpenes with CO2, ethanol, or a hydrocarbon. The result is a thick oil. Common cannabinoids in the mix include CBD, CBG, CBC, CBN, and trace delta-9 THC. Terpenes such as myrcene, pinene, and limonene carry over from the flower. Some producers add terpenes back after extraction. Other carts add MCT oil, propylene glycol, or polyethylene glycol to thin the oil. Read the ingredient panel before you buy.
Full spectrum vs. broad spectrum vs. isolate
- Full spectrum: whole plant extract. Trace THC stays in.
- Broad spectrum: the same cannabinoid mix with THC removed or cut below lab detection.
- Isolate: CBD alone at 99% purity or higher. No terpenes, no other cannabinoids.
The three types differ in what the lab report shows and in THC content. They share the same federal legal status when the base material is hemp.
THC and drug tests
Full spectrum carts hold delta-9 THC. The amount stays at or under 0.3% by dry weight, but a person who vapes full spectrum oil over time can test positive on a urine screen. Urine screens look for THC metabolites at a cutoff near 50 ng/mL. Broad spectrum and isolate carts lower that risk. They do not remove it. No cart maker can promise a negative test result.
Full Spectrum Vape Carts: What to Know Before You Buy
Read the label and the lab report
- Batch number and test date. A report older than 12 months may not match the oil in the cart.
- Potency panel. Look for total CBD in mg and delta-9 THC as a percentage.
- Contaminant panel. Pesticides, heavy metals, residual solvents, microbials, mycotoxins.
- Lab name and ISO/IEC 17025 accreditation.
A report from a lab with no accreditation carries less weight. Hemp programs in states such as Colorado and Oregon publish testing rules you can compare against.
Hardware and storage
Most carts use a 510 thread. Pod systems use a closed connection tied to one brand. Ceramic coils run cooler than cotton wicks and resist burn. Glass and ceramic tanks hold oil better than plastic. Store carts upright in a cool, dark place. Heat thins the oil and pushes it through the coil. Air exposure oxidizes terpenes and turns the oil dark. Many producers print a 12-month best-by date on the package.
Legal status in the US
The 2018 Farm Bill removed hemp from the Controlled Substances Act. Hemp means Cannabis sativa L. with 0.3% or less delta-9 THC on a dry weight basis. The FDA has not approved CBD as a food additive or dietary supplement. The agency states that adding CBD to food or supplements sold in interstate commerce violates the Federal Food, Drug, and Cosmetic Act. Some states ban or restrict hemp vape products. Check state law before you order.
Vaping risk
Inhaling oil carries risk. CDC linked vitamin E acetate to the 2019 EVALI outbreak. As of February 18, 2020, CDC reported 2,807 hospital cases and 68 deaths. Vitamin E acetate is a thickener added to some vape oils. A cart with a short ingredient list and a solvent test that reports vitamin E acetate as not detected cuts exposure to that additive. It does not make vaping safe.
Buying checklist
- COA with a batch number that matches the cart.
- Delta-9 THC under 0.3% and printed in the potency panel.
- Solvent test with vitamin E acetate listed as not detected.
- Total CBD in mg printed on the cart or box.
- State law allows hemp vape products.