Hemp-derived THC beverages — low-dose seltzers typically carrying 2 to 10 milligrams of Delta-9 THC per can — have become one of the fastest-growing and most actively regulated categories in the hemp industry this year, as more states move to cap milligram content directly rather than relying solely on the federal dry-weight percentage test.
Because the federal test measures Delta-9 THC against a product's total weight, a beverage — mostly water — can legally carry a perceptible psychoactive dose while still testing under the 0.3% threshold. Some states have responded with caps as low as 2 milligrams per serving, with at least one state considering legislation to raise that limit to 10 milligrams.
The category faces additional uncertainty from the federal total-THC standard taking effect November 12, 2026, which introduces a 0.4 milligram per-container cap that would restrict most currently marketed hemp beverages if implemented as written. Our hemp beverage legality explainer covers the underlying math in depth.
Sources: Cannabis Inquirer, HempData regulatory tracker.