He ate a cannabis brownie at 7 PM and fell asleep by 10 PM feeling fine. He woke up at 2 AM still high. He had eaten a heavy dinner right before the brownie, which delayed the onset significantly. The brownie hit while he slept. He spent four hours awake in the dark, waiting for an experience he had not expected to still be having. Understanding why edibles last so much longer than other forms of cannabis, and what affects that duration, is genuinely practical information for anyone who uses them.
Quick Answer: How Long Do Edibles Last?
For most adults at standard doses of 5 to 15mg THC, cannabis edibles produce effects that last 4 to 8 hours. The onset takes 30 minutes to 2 hours after consumption. At very high doses, effects can persist for 12 hours or longer. The duration is significantly longer than smoked or vaped cannabis, which typically lasts 1 to 3 hours. Multiple factors including body weight, metabolism, food intake, tolerance, and the specific product all influence individual duration.
Why Edibles Last So Much Longer Than Smoking
When you smoke or vape cannabis, THC enters the bloodstream through the lungs and reaches the brain within minutes. When you eat cannabis, it goes through your digestive system first. The liver converts THC into 11-hydroxy-THC during this first-pass metabolism process. This metabolite is more potent than inhaled THC and has a longer half-life in the body. The combination of a more potent active compound with a longer elimination half-life is why edibles produce effects that are both more intense and longer-lasting than the equivalent dose of inhaled cannabis.
The Timeline: What to Expect Hour by Hour
0 to 30 Minutes After Eating
You typically feel nothing during this window. The cannabis is being digested and has not yet reached the small intestine where absorption primarily occurs. This is the window where the most common edible mistake happens: assuming the edible is not working and eating more.
30 to 90 Minutes: Onset
For most people on an empty or light stomach, effects begin within this window. The onset is gradual rather than sudden. You may notice a mild shift in mood, a slight physical heaviness, or a change in sensory perception. The onset can extend to 2 hours if you ate a large meal before the edible or if your individual digestive rate is slow.
90 Minutes to 3 Hours: Peak
The peak of edible effects typically falls between 90 minutes and 3 hours after consumption. This is the most intense period. At a comfortable dose, peak effects involve euphoria, relaxation, heightened sensory awareness, and often appetite stimulation. At too high a dose, peak effects can include anxiety, disorientation, rapid heart rate, and the overwhelm described in the too many edibles experience.
3 to 6 Hours: Gradual Comedown
Effects begin diminishing during this window. You are still noticeably influenced by the cannabis but the peak intensity has passed. Relaxation and sedation often become more prominent during the comedown than at the peak.
6 to 12 Hours: Residual Effects
At standard doses, most people feel returned to baseline within 6 to 8 hours. Residual mild sedation and slight cognitive changes can persist for some people up to 12 hours, particularly with higher doses. Most people who eat an edible in the evening feel fine the next morning, though some report a mild residual groggy feeling if the dose was high.
Factors That Make Edibles Last Longer
Higher Dose
The single most important factor. A 50mg edible will produce effects lasting significantly longer than a 10mg edible in the same individual. More 11-hydroxy-THC in the bloodstream means longer duration before it clears. This is why starting at 5 to 10mg is so important rather than jumping to higher-potency products.
Empty Stomach
Eating an edible on a completely empty stomach accelerates absorption and can intensify onset but does not dramatically change total duration. Some people report shorter duration with empty stomach consumption, which may reflect faster peak and faster clearance.
Full Stomach
A large, fatty meal consumed shortly before an edible significantly delays onset and can push it out to 2 or even 3 hours. This delay is often why people take too much assuming the edible has not activated. The duration of effects may be extended when absorption occurs more slowly through a full digestive system.
Tolerance
Regular cannabis users have higher tolerance and typically experience shorter and less intense effects from the same dose than infrequent users. Someone who uses cannabis daily may find a 10mg edible produces effects lasting 3 to 4 hours while a first-time user finds the same dose lasts 8 hours.
Individual Metabolism and Body Composition
Metabolic rate, liver enzyme activity, and body fat percentage all influence how quickly 11-hydroxy-THC is produced, reaches peak levels, and is cleared. These individual factors mean that two people consuming identical doses in identical circumstances can have meaningfully different duration experiences.
Sublingual Tinctures: The Middle Ground
Sublingual tinctures, held under the tongue for 60 to 90 seconds before swallowing, partially bypass first-pass liver metabolism by absorbing through the mucous membrane. This produces a faster onset than swallowed edibles (15 to 45 minutes) and a shorter duration (3 to 5 hours) while still providing longer effects than smoked cannabis. Many experienced edible users prefer tinctures for more predictable duration and onset control.
Frequently Asked Questions
How long do 10mg edibles last?
For most adults, 4 to 6 hours at a 10mg dose. This varies significantly based on tolerance, body composition, and what you have eaten. First-time or infrequent users may experience effects lasting 6 to 8 hours at 10mg.
Why do edibles hit different than smoking?
The liver converts THC to 11-hydroxy-THC during digestion. This metabolite is more potent and longer-lasting than inhaled THC, producing a heavier, more body-focused, longer-duration effect.
How long do edibles stay in your system for a drug test?
The detection window for drug testing is similar regardless of consumption method because the test detects THC-COOH metabolites rather than THC itself. For an infrequent user, 3 to 7 days. For regular users, 14 to 30 days or longer.
Author: Sarah Kim covers cannabis wellness and consumer education for Ganjly.
Related: Read Ganjly’s guide to what happens when you eat too many edibles and edibles dosing for beginners.
