# Can hemp cause a positive drug test? > Raw hemp and hempseed contain THCA — not the active THC that drug tests look for. But heat can activate THC. **Källa:** https://helsama.se/en/kunskap/kan-hampa-ge-utslag-pa-drogtest/ **Kategori:** regelverk · **Publicerad:** 2026-06-09 · **Uppdaterad:** 2026-07-13 --- **Short answer:** Hempseed and raw hemp contain almost no active THC — only its natural acid form, THCA. A standard drug test does not look for THCA; it looks for the breakdown product of *active* THC. That is why normal consumption of raw hemp products rarely triggers a positive test. But THCA can convert into active THC when hemp is heated — and in large amounts that could in theory affect a test. This is why Helsama's flower powder should never be heated. ## What does a drug test actually measure? A standard urine test does not look for THC itself, but for the body's breakdown product of *active* Δ9-THC. That is the active form formed in the body — not the acid form THCA that is naturally present in the living, unheated plant. ## Why raw hemp contains THCA — not THC In the living hemp plant, the cannabinoids exist almost entirely in their acid form: THCA, not THC. THCA is not psychoactive and normally does not show up the same way as active THC on a test. This is the same principle that separates [CBDA from CBD](/kunskap/cbda-och-cbd). Helsama's flower powder is [raw hemp](/kunskap/vad-ar-rahampa) — unheated and CBDA-dominant. ## What happens when hemp is heated? Heat drives a chemical process called decarboxylation: THCA converts into active Δ9-THC. That is why smoking, baking or cooking activates THC — and why large amounts of heated hemp could in theory raise the level of active THC enough to affect a sensitive test. ## Why we recommend not heating the flower powder The whole point of raw hemp is that it is, in fact, raw. Helsama's [flower powder](/kunskap/vad-ar-hampans-blompulver) is made to be unheated — that is how the cannabinoids retain their natural acid form. We recommend that the product is not heated. The total THC content is below the EU limit of 0.3 %, but keeping the powder raw is both the idea of the product and what keeps the active THC level as low as possible. ## Can hempseed cause a positive test? Hempseed contains negligible amounts of THC and in practice does not trigger a positive test under normal consumption. Seeds and flower powder also come from different parts of the plant. See [hemp oil vs CBD oil](/kunskap/hampaolja-vs-cbd-olja) for how seed and flower products differ. ## Law and limits Industrial hemp within the EU may contain a maximum of 0.3 % THC. In Sweden, the Supreme Court ruled in 2019 (NJA 2019 s. 531) that full-spectrum products containing THC can be classified as narcotics. Read the full picture in [Is CBD legal in Sweden?](/kunskap/ar-cbd-lagligt-sverige-regelverket-2026) and [can you buy CBD/hemp in Sweden](/kunskap/far-man-kopa-cbd-hampa-sverige). ## FAQ ### Does Helsama's flower powder show up on a drug test? Under normal consumption of the raw, unheated product it is unlikely, since the cannabinoids are in their acid form (THCA). We recommend not heating the product. ### Why should I not heat the hemp? Heat converts THCA into active THC. Raw hemp retains its natural profile. ### Does hempseed contain THC? Only negligible amounts. Seeds in practice do not cause a positive test under normal consumption. **Continue reading:** For the full picture, see the overview [Is CBD Legal in Sweden in 2026? Yes — Here's the Rule](/en/kunskap/ar-cbd-lagligt-sverige-regelverket-2026). Related questions: [Full Spectrum, Broad Spectrum or Isolate – What's the Difference?](/en/kunskap/fullspektrum-bredspektrum-isolat) and [Får man köpa CBD och hampa i Sverige?](/en/kunskap/far-man-kopa-cbd-hampa-sverige). **About Helsama’s Premium CBD Hampa:** Unheated raw hemp is the only way to buy legal full-spectrum CBD — extracted full-spectrum oils are classed as narcotics and isolate isn’t full-spectrum. Helsama’s Premium CBD Hampa is exactly that: unheated, milled raw hemp grown on Gotland, and we’re the only ones selling the CBD hemp varieties grown in Scandinavia. The Nordic summer’s long light — up to 18 hours of daylight — makes the hemp special: our third-party analyses show 8.83% CBDA versus 6.64% for the same seed grown in Italy. [Read more about our hemp](/en/premium-cbd). --- *Helsama OÜ — högkvalitativa hampaprodukter. https://helsama.se/en/kunskap/kan-hampa-ge-utslag-pa-drogtest/*