How long do edibles last?

Every figure here is a range, because the spread between people is genuinely large and a single number would be a guess. Treat the early end as what happens on an empty stomach with a modest dose, and the late end as a full stomach with a large one.

The single most useful row is the second one. Thirty to a hundred and twenty minutes is a very wide window to sit in while wondering whether anything is going to happen, and the temptation to fill it by eating more is where almost every bad evening starts.

Smoked, THC goes lung to blood to brain in a couple of minutes and is largely done inside two or three hours. Eaten, it has to be digested, absorbed through the gut wall, and routed through the liver before any of it reaches you.

The liver converts much of it into 11-hydroxy-THC, a different compound that crosses into the brain readily and clears slowly. That conversion barely happens when you smoke. It is the reason an edible arrives later, feels stronger than the same milligrams smoked, and keeps going for hours after you expected to be finished.

• What is in your stomach. The biggest single factor. A fatty meal beforehand tends to increase how much you absorb while delaying onset — later and stronger, which is an awkward combination to be surprised by.
• The dose. Duration scales with it. A microdose can be finished in three hours; 25 mg can occupy an evening and part of the next day.
• Whether you swallowed it or held it. A tincture held under the tongue delivers part of the dose straight into the bloodstream in 15 to 45 minutes. The rest, once swallowed, arrives on the normal schedule. You get a faster front edge on top of the usual curve rather than a shorter experience.
• Tolerance. Regular use shortens and flattens the whole curve. A dose that filled an evening a month ago may barely register now, and the reverse after a break.
• You, specifically. Liver enzyme activity varies a great deal between people, and it is not something you can look up about yourself. Two people can eat identical pieces from the same tray and have genuinely different evenings.

There is no antidote. Once it is absorbed, it is absorbed, and the only thing that clears it is time. Eating more food will not soak it up, coffee produces an alert version of the same state, and a cold shower is bracing rather than useful.

Sleep is the genuine exception, and not because it changes the chemistry — it removes the part that is actually unpleasant, which is waiting. If it has gone badly wrong, there is more on what to do when you have taken too much.

The practical consequence of all this is that an edible is not an hour’s decision. Taken at nine in the evening, a standard dose is peaking around midnight and still tailing off at four in the morning, and you may not feel entirely yourself at breakfast.

Impairment outlasts the part you notice. The tail is exactly the stretch where someone feels finished and is not, which makes it the worst possible time to decide you are fine to drive. Treat an edible as taking the rest of the day and the next morning off driving.

How long do edibles last?

The main effect typically runs four to eight hours, with a residual tail that often carries on for another four and, after a large dose, a foggy feeling into the next morning. That is much longer than smoking, where most of it is over inside two or three hours. The length scales with the dose: a 2.5 mg microdose may be finished in three hours, while 25 mg can occupy an entire evening and part of the following day.

How long do edibles take to kick in?

Usually 30 to 120 minutes. It has to be digested, absorbed through the gut wall and passed through the liver before any of it reaches your brain, and how fast that happens depends mostly on what else is in your stomach. A fatty meal beforehand tends to increase how much you absorb while delaying when you feel it, which is a genuinely awkward combination: later and stronger.

Why do edibles last so much longer than smoking?

Two reasons. Absorption through the gut is slow and spread out rather than sudden, so it arrives over a long window instead of all at once. And the liver converts a large share of the THC into 11-hydroxy-THC, a different compound that crosses into the brain readily and clears slowly. Smoking largely skips that conversion, which is why the same milligrams behave so differently.

Does a tincture under the tongue work faster?

Some of it, yes. Held under the tongue for a minute or two, part of the dose is absorbed straight through the tissue into the bloodstream, skipping the gut and the liver entirely. That fraction arrives in roughly 15 to 45 minutes and fades sooner. Whatever you then swallow behaves like any other edible and arrives on the usual schedule, so the two overlap — a faster front edge on top of a normal curve, not a replacement for it.

Can I make an edible wear off faster?

No. There is no antidote and nothing you can eat, drink or do that clears it meaningfully sooner. Food will not soak it up once it is already absorbed, caffeine makes you an alert version of the same thing, and a cold shower is bracing rather than useful. Sleep is the one genuinely good option, because it removes the part that is unpleasant, which is waiting.

How long should I wait before taking more?

Two hours at minimum, and three if you have eaten recently. Almost every bad experience with edibles comes from redosing inside that window and then having both arrive together. If two hours have passed and you feel nothing at all, taking more is a decision worth making carefully rather than impatiently — and it is worth reading why nothing happened first, because the usual cause is the batch rather than the dose.

How long until it is safe to drive?

Longer than it feels. Impairment outlasts the part you notice, and the tail of an edible is exactly the stretch where someone feels finished and is not. Treat an edible as taking the rest of the day and the following morning off driving. There is no home test that tells you otherwise.

None of this is much help if you do not know what is in the food. The infusion calculator tells you how strong your butter or oil came out, the dosing calculator splits it across a batch, and the dosing guide covers what the numbers mean.

This page is general information about how edibles behave. It is not medical advice, it is not tailored to you, and it does not suggest cannabis as a treatment for anything. If you have a health condition or take medication, talk to a doctor or pharmacist.