Brussels sets 40 mg/kg for dry hemp leaves and 0.02 mg/kg for bottled infusions

The European Union has set explicit THC ceilings for hemp leaves sold to be brewed in water and for ready-to-drink hemp-leaf infusions. Commission Regulation (EU) 2026/1828 fixes maximum delta-9-THC-equivalent levels at 40 milligrams per kilogram for hemp leaves intended for water infusion and 0.02 milligrams per kilogram for finished ready-to-drink hemp-leaf infusions.

That matters because these products had been sitting in a food-law grey area. The regulation was published on 29 July 2026, enters into force on 18 August, and applies from 1 January 2027. From then, growers, ingredient traders, beverage fillers, own-label supermarkets and online sellers will have a common EU number to hit, plus mandatory front-label warnings set out in the rule. Products lawfully marketed before the application date can remain on sale until their best-before or use-by date.

The immediate effect is practical rather than ideological. A business that buys dried leaves or sells canned or bottled hemp drinks now needs tighter specifications, fresh lab work and a clearer stock plan. A batch that looked acceptable under a broad national tolerance may fail under a numeric EU cap, especially in finished drinks where the ceiling is extremely low.

The change is also notable for what it is not. This is not a new cannabis liberalisation measure and not a new authorisation route for novel foods. It is a food safety rule that decides how much THC can legally be present in a narrow set of hemp-leaf products already circulating in parts of the European market.

The new cap sits inside the EU contaminant rulebook, not the drug rulebook

The legal machinery matters because it explains how the EU chose to solve the problem. Regulation 2026/1828 amends Regulation 2023/915, the bloc’s contaminants framework for food. In everyday terms, that framework is where the EU sets maximum levels for unwanted substances in foods that can otherwise be sold. By placing hemp-leaf infusions there, the Commission treated THC in these products as a measurable food safety issue.

This continues a line the EU started in 2022. Regulation 2022/1393 already inserted THC limits for hemp seeds, hemp seed oil and processed foods made from seeds. The new measure extends that approach beyond seed-derived products and into leaf-based infusions. The step is small in legal form, but large in market effect. It takes one corner of the hemp trade out of guesswork and puts it into the same quantified compliance system used for other foods.

The other structural piece is novel-food status. Under the European Commission’s novel-food catalogue, water infusions made from hemp leaves are not treated as novel food when the product does not include flowering or fruiting tops. That distinction is easy to miss and commercially important. It means plain leaf infusions can be marketed as food, provided they comply with general food law and now with the THC caps and warning rules. It does not give the same comfort to products built around extracts, enriched cannabinoids or plant parts that fall into other categories.

The term “delta-9-THC equivalent” is also doing real work. The EU uses an equivalent measure so laboratories and enforcement bodies can assess a product against a common THC yardstick rather than only the exact molecule named on the front of the packet. For consumers, the practical point is simpler. The rule is meant to capture the THC burden that matters in food safety assessment, not just the marketing description used by a seller.

The science behind the move is not new, but the legal response is. The Commission relied on earlier European Food Safety Authority work that set an acute reference dose for delta-9-THC of 1 microgram per kilogram of body weight. An acute reference dose is the amount considered tolerable in a short period, typically a single day, without appreciable health risk. EFSA later assessed short-term dietary exposure and found that some estimates exceeded that benchmark. That gave the Commission a defensible basis for moving from general concern to fixed limits in additional hemp food categories.

The very different ceilings for dry leaves and ready-to-drink products reflect the way these goods are consumed. Dried leaves sold for water infusion are a raw material that will be diluted in brewing and used in varying amounts. A bottled or canned infusion is the finished product as consumed, so the regulator set a much tighter ceiling at the point of sale. That does not mean bottled products are prohibited. It means the margin for error is narrow enough that casual sourcing and light-touch testing will not be enough.

One compliance window now covers growers, fillers, brands and retailers

For primary producers and traders, the first operational issue is plant material selection. A rule written specifically for hemp leaves raises the importance of separating leaves from flowering or fruiting tops in harvesting, drying and storage. If batches are mixed, the legal category may change and THC levels may rise. That puts more pressure on field protocols, supplier contracts and incoming goods checks, especially for businesses buying across borders within the EU.

Ingredient suppliers and contract packers face a more technical problem. They need analytical methods sensitive enough to support release decisions at very low concentrations, especially for ready-to-drink products capped at 0.02 mg/kg. That affects sampling plans, lab choice, certificate-of-analysis language and dispute terms in supply agreements. A compliant dry leaf input does not automatically guarantee a compliant beverage output, because extraction into water and final formulation still have to be validated in the finished product.

Beverage brands, including wellness brands that treated hemp as a soft botanical rather than a tightly managed ingredient, have the shortest path from the rulebook to the packaging line. They now need to decide whether to reformulate, switch supplier, shrink serving sizes, change pack claims or exit the category. The mandatory front-label warnings make this a packaging matter as much as a chemistry matter. Stock-keeping units that barely worked under a permissive reading of national practice may no longer justify the testing and relabelling burden.

Retailers are affected too, even if they do not make the product. Supermarkets, specialty tea shops, pharmacies and online marketplaces will need clearer buying rules for hemp-leaf teas and drinks. A common EU cap should eventually simplify procurement, but the transition period could be untidy. Products placed on the market lawfully before 1 January 2027 may continue to be sold until their date mark, so shelves may temporarily carry old and new labels side by side.

The upside for larger operators is obvious. A bloc-wide number is easier to build into sourcing, testing and insurance than a patchwork of informal tolerances, local inspector preferences or ambiguous product positioning. The downside is that a single hard number exposes weak control systems. Businesses that relied on the general aura of “industrial hemp” as a safety signal now have a regulator-set proof point to meet.

The change also sharpens a division inside the European hemp economy. Traditional foods made from recognised parts of the plant are being pulled into clearer food-law channels, with contamination limits and ordinary compliance duties. At the same time, many cannabinoid extracts and ingestible products remain tied up in novel-food questions, national narcotics rules or both. For policy watchers, the message is disciplined rather than expansive. The EU is not opening the door to all hemp-derived ingestibles. It is defining a narrow lane for a specific type of product and making the operator carry the compliance load.

The enforcement politics may also become calmer, but not frictionless. National authorities will still inspect, sample and interpret evidence in the field. Yet a directly applicable EU regulation reduces the space for diverging local habits about what counts as acceptable hemp tea. For companies that sell into several member states, that is valuable. It lowers one category of uncertainty even while leaving the day-to-day burden of proof intact.

Clear numbers end the leaf-tea argument and begin a harder test of discipline

The strongest feature of the new rule is not the number itself. It is the end of ambiguity for one product class that has been sold across Europe with uneven levels of scrutiny. When a regulator sets a maximum level inside the contaminants framework, the conversation changes. Debate about whether hemp-leaf infusions belong in food law gives way to evidence about whether a batch passes, whether a label complies and whether a seller can prove both.

That clarity will favour businesses that already behave like food operators rather than lifestyle merchants. The work now is ordinary but exacting: define the raw material, keep excluded plant parts out of the line, test at the right stage, document the result, control the label and manage old stock before the application date. None of that is glamorous. All of it decides who stays in the category once enforcement begins.

Some uncertainty remains. The regulation does not remove every national enforcement difference, because sampling practice, laboratory capacity and inspection intensity still sit with member states. The boundary between leaf-only infusions and products that include flowering tops or cannabinoid enrichment will continue to matter. So will the practical question of how businesses demonstrate compliance for very low THC levels in finished drinks, especially in cross-border online sales where the seller, warehouse and customer may all be in different countries.

There is also a wider message in the way the Commission acted. It did not try to solve the entire hemp ingestibles debate in one move. It used an existing food-safety instrument, added narrowly defined categories and attached measurable limits. That is a familiar EU method. It regularises what can be bounded, leaves harder categories for later and expects the market to adapt to a documented standard rather than a political slogan.

Even so, the direction is plain. The EU has chosen to normalise hemp-leaf infusions as a food category only by narrowing them. The market is being told that leaf tea and bottled hemp infusions may exist, but only inside measured THC limits, mandatory warnings and the paperwork that comes with food law. For serious operators, that is usable clarity. For businesses built on vague plant language and loose testing, it is the end of the easy version of the trade.