Most edibles peak two to three hours after you eat them. Not 30 minutes, not one hour — two to three hours, and for some people later than that.
That single number is the most useful thing to know about edibles, and it’s the one most people get wrong. Here’s what determines it and how to work with it.
People collapse these into one idea, and that’s where the trouble starts.
Onset is when you first notice something — typically 30 to 90 minutes in. It’s usually subtle: a slight body heaviness, sound changing a little, time feeling different.
Peak is when the effect is at maximum intensity, and it’s usually a full hour or more after onset. If you noticed something at 45 minutes, you’re not near the top. You’re at the bottom of the climb.
The gap between those two numbers is where nearly every bad edible experience is born. Someone feels a little something at an hour, decides it’s weak, and eats another one — right as the first dose is starting its real ascent.
When you swallow THC, everything you eat passes through your liver before it reaches general circulation. Your liver converts a large share of that THC into 11-hydroxy-THC, a related molecule that crosses into the brain more readily and produces a substantially stronger effect than THC itself.
That conversion is not instant, and here’s the part that matters: the 11-hydroxy-THC curve typically peaks later than the THC curve. The stronger compound arrives second. So the most intense part of an edible is often driven by a molecule your body is still busy manufacturing at the 90-minute mark.
This is also why edibles feel disproportionate to their milligram number. You didn’t take a large dose. Your liver made it one. I go through the mechanism in why edibles hit so much harder than smoking.
Empty stomach — earlier and sharper. Nothing delays the edible leaving your stomach, so absorption starts sooner and the curve is steeper. Peak can land closer to 90 minutes.
Full stomach, especially a fatty meal — later and flatter. Food holds the edible in your stomach. Peak can push past three hours. Fat also tends to increase total absorption, so a delayed peak isn’t necessarily a smaller one.
Body composition. THC is fat-soluble. Higher body fat generally means a somewhat slower, more drawn-out curve; lower body fat tends toward a faster, sharper one.
Your metabolism. The liver enzyme doing most of the conversion varies considerably between people for genetic reasons. Two people, same gummy, same conditions, can be an hour apart on peak.
Dose. A bigger dose doesn’t peak much later — it peaks higher and stays elevated longer. Timing is roughly stable; intensity and duration scale.
Format. Fast-acting or nano-emulsified products can peak in under an hour. Fatty edibles like brownies and chocolates run later. Gummies sit in the middle.
Tolerance. Regular use lowers how much you feel at the peak. It doesn’t meaningfully change when the peak arrives.
Plan backwards from the peak, not from the dose. If you want to be at your most affected at 9pm, eat at around 6:30. If you need to be functional by 10pm, eating at 8 is a bad idea.
Set a three-hour timer before considering more. This is the whole game. Three hours covers the realistic peak window with margin. Re-dosing before then stacks two curves on top of each other, and you get one much larger peak instead of two moderate ones.
Don’t judge the dose at one hour. You’re evaluating an experience that hasn’t happened yet.
Know your comedown too. After the peak, effects fade gradually over the following several hours — total duration typically four to eight hours, longer at higher doses. The tail is slower than most people expect, and feeling foggy the next morning is common after a large dose.
Onset at 30 to 90 minutes. Peak at two to three hours. Down over the following several hours. Those are the averages, and the gap between onset and peak is the part that catches people out.
Your own peak is a different number, though — it moves with your body, your dose, and whether you ate. That’s the whole reason I built GummyClock (gummyclock.com). Enter your details and it maps your specific curve, gives you your peak as an actual clock time, and tells you when you’ll be coming down. It also plots the 11-hydroxy-THC line separately, so you can see the second, stronger wave that most timing advice ignores entirely.
Knowing your peak time in advance is the difference between planning an experience and waiting to find out what happens.
Get a personalized timing prediction for your next edible.
Open the GummyClock calculator