Stem tea is a simple way to use leftover cannabis stems instead of throwing them away. The process involves three key steps: activating the cannabinoids with heat, simmering the stems with a fat source so the active compounds can dissolve, and straining. Without both heat activation and a fat, you won’t feel any effects at all. Here’s how to do it right.
Why You Need Heat and Fat
Raw cannabis stems contain cannabinoids in their acidic form, which won’t produce a high or noticeable relaxation on their own. Heating converts these inactive compounds into their active versions, a process called decarboxylation. For stems, the ideal temperature is 240°F (115°C) for 30 to 45 minutes in a standard oven.
The second requirement is fat. Cannabinoids don’t dissolve in water. They dissolve in lipids, which is why virtually every cannabis cooking method calls for butter, oil, or whole milk. Research published in the American Journal of Translational Research confirmed that fats with longer fatty-acid chains (like those in coconut oil, butter, or sesame oil) produce stronger absorption in the gut. If you skip the fat and just steep stems in plain hot water, you’ll get a mildly woody, herbal drink with zero psychoactive or therapeutic effect.
What You’ll Need
- Cannabis stems: roughly 4 to 5 grams for a single cup, or about 1 ounce if you’re making a larger batch
- Water: 1 to 2 cups per serving
- A fat source: a tablespoon of coconut oil, unsalted butter, or a splash of whole milk or cream
- A strainer: cheesecloth, a coffee filter, or a fine mesh strainer
- A second cup or teapot to strain the liquid into
Keep in mind that stems contain far less cannabinoid content than flower. Expect a mild, gentle effect rather than anything intense. You can save up stems over time in a jar or bag until you have enough to brew a worthwhile cup.
Step 1: Decarboxylate the Stems
Preheat your oven to 240°F (115°C). Break the stems into small pieces and spread them in a single layer on a baking sheet lined with parchment paper. Make sure they don’t overlap. Bake for 30 to 40 minutes, checking occasionally. You’re looking for a golden brown color and a toasted, herbal smell. Remove the pan and let the stems cool completely before moving on.
Unlike flower, which many people grind before cooking, stems work better left in small pieces rather than ground to powder. Grinding them too fine can make straining difficult and leave gritty sediment in your tea.
Step 2: Simmer With Fat
Bring your water to a gentle boil in a small pot, then reduce the heat to a low simmer. Add the decarboxylated stems and your chosen fat source. A tablespoon of coconut oil or butter per cup of water works well. If you prefer a creamier drink, substitute half the water with whole milk.
Let the mixture simmer on low for 15 to 20 minutes, stirring occasionally. You want a consistent low heat, not a rolling boil. The boiling point of the main active compound in cannabis is around 315°F (157°C), well above the temperature of simmering water (around 200°F), so a gentle simmer won’t destroy what you’ve activated. Sustained exposure to temperatures above 220°F for long periods does cause significant degradation, but stovetop simmering in water stays safely below that range.
Step 3: Strain and Serve
Place your cheesecloth, coffee filter, or mesh strainer over a cup or teapot and pour the liquid through it slowly. Press the stems gently with a spoon to squeeze out remaining liquid, then discard the plant material.
On its own, stem tea tastes earthy, woody, and slightly bitter. Most people add something to make it more enjoyable. Honey is the most common choice, and a cinnamon stick or a bag of chai, peppermint, or chamomile tea dropped in during the last few minutes of simmering can transform the flavor entirely. A squeeze of lemon also helps cut through the grassiness.
When You’ll Feel It
Because you’re drinking an edible, the timeline follows edible rules rather than smoking rules. Effects typically begin 30 to 60 minutes after drinking, with peak intensity arriving around the three-hour mark. The duration tends to run six to eight hours for edibles in general, though stem tea is mild enough that most people experience a shorter, lighter window.
The key thing to know is that edible effects come on slowly and can feel stronger than expected if you drink more before the first cup kicks in. Start with one cup, wait at least 90 minutes, and see how you feel before making another.
Potential Side Effects
Stem tea is one of the gentlest ways to consume cannabis, but it’s still worth knowing what to watch for. Nausea and stomach discomfort can occur, particularly if you use a lot of fat on an empty stomach. Cannabis consumption more broadly has been linked to heartburn in some regular users, and in rare cases, heavy chronic use is associated with a condition that causes repeated vomiting episodes.
Because stems are low in cannabinoid content, the risk of overconsumption from a single cup is minimal. The more common complaint is simply that the tea doesn’t do much. If you find the effects too subtle, the next batch can include a bit more stem material or a longer simmer time, but don’t expect stem tea to match the potency of tea made with flower or concentrates.