If you hit a cart, how long does it stay in your system? It’s one of the most commonly asked questions by those who vape THC, whether occasionally or regularly. A “cart” refers to a pre-filled cannabis oil cartridge, often used in vape pens, and it’s known for its high THC potency. Unlike smoking a joint or eating an edible, hitting a cart delivers concentrated doses of THC directly into the bloodstream—meaning it can linger in your system longer than you might expect.

In this article, we’ll break down all the key factors that determine how long weed from a cart stays in your system, based on frequency of use, body chemistry, and the type of drug test you might face. Whether you’re a daily user or just took a couple of puffs, we’ve got the answers.

Key Factors That Affect THC Detection Times

Frequency & Dose of Use

How often you vape and how much you consume directly influence how long it takes to get clean from carts. For example:

• If you smoke every day, THC can build up in your fat cells and take 30 days or more to leave your body.
  
  
• If you smoke once a week, you might test clean within 10 to 15 days.
  
  
• For those who only hit a cart once or twice, like taking 2 hits or a single puff, THC might leave your urine within 3 to 7 days.
  
  

Repeated use causes accumulation, and the more frequent your intake—especially from high-potency THC carts—the longer it takes to detox completely.

Body Type, Metabolism & Hydration

Your individual metabolism plays a big role in how long weed stays in your system. People with faster metabolisms, lower body fat, and who stay well-hydrated tend to clear THC more quickly.

• THC is fat-soluble, meaning it stores in body fat.
  
  
• Regular exercise and high water intake can help flush your system faster.
  
  

It’s not just about how much you smoke, but how your body processes the cannabinoids.

Type of Consumption: Cart vs. Joint vs. Edibles

Different methods of cannabis consumption impact how long THC stays in your system:

• Carts: Deliver potent doses directly into your bloodstream. Weed from a cart can stay in your system longer than a traditional joint.
  
  
• Joints: Less concentrated than carts. A couple of puffs may leave your system faster.
  
  
• Edibles: Metabolized differently; often detectable longer due to the way THC is processed in the liver.
  
  

If you’re wondering whether carts stay in your system longer than flower: yes, they often do.

Drug Test Detection Windows

THC can be detected for varying lengths of time depending on the type of drug test.

Urine Testing

This is the most common method of drug screening.

• Occasional users: 3 to 7 days
  
  
• Weekly users: 10 to 21 days
  
  
• Daily users: up to 30+ days
  
  

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Blood Testing

Blood tests can detect THC for:

• Occasional use: up to 2 days
  
  
• Frequent use: up to 7 days or more
  
  

Saliva Testing

Saliva tests detect more recent use:

• Single use: 1 to 3 days
  
  
• Regular use: up to a week
  
  

Hair Testing

THC can be detected in hair for up to 90 days, regardless of how it was consumed.

Specific Scenarios (Quick Answers to Common Questions)

If I Hit a Cart Once, How Long Will It Stay in My System?

Even a single puff can be detected. One hit from a cart may remain in your system for 3 to 7 days depending on your body and metabolism.

If I Smoke Weed Every Day, How Long Till I’m Clean?

Daily weed smokers often need 30 to 60 days to test clean, especially with cart use. THC builds up in fat tissue, making detox slower.

If I Smoke Weed Once a Week, How Long Till I’m Clean?

Expect a 10 to 15-day window for occasional weekly smokers to pass a drug test.

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How Long Do Carts Stay in Your System Compared to Joints?

Carts are more concentrated. Users often test positive longer than if they’d smoked the same amount of flower. While joints might clear in under a week, carts can linger for two weeks or more with moderate use.

How Long Will THC Show Up If I Only Took a Few Puffs?

Even just 2–3 hits can show up in a test for several days. Urine is the most sensitive, with THC detectable for up to 7 days.

Detox & Getting THC Out of Your System

There’s no magic cleanse, but you can support your body’s natural detox process:

• Stay hydrated – water helps flush the kidneys
  
  
• Exercise – burns fat, where THC is stored
  
  
• Eat fiber-rich foods – supports digestion and elimination
  
  

For heavy users, it can take 30–60 days to detox fully. For occasional users, 3 to 10 days may be enough.

Final Thoughts: How Long Weed Stays in Your System (Summary)

THC detection depends on your use habits, body type, and the testing method. While some may flush THC in a few days, others—especially daily cart users—may need weeks or more. Carts tend to linger longer due to their potency and delivery method.

If you’re preparing for a drug test or just curious about your body’s timeline, be honest about your use and take steps toward detox as needed. And remember, time is the most reliable method to get weed out of your system.

Ready to Detox? Get Expert Help at Asana Recovery

If you’re concerned about how long weed, vape carts, or THC may stay in your system—or you’re looking to get clean faster—Asana Recovery is here to support you. Our evidence-based addiction treatment programs in Orange County are designed to meet you where you are. Whether you’re a daily smoker, hit a cart occasionally, or just want a clear path forward, we offer medically supervised detox and holistic rehab options tailored to your needs. Don’t wait for weed to leave your system on its own. Call Asana Recovery today and take the first step toward long-term wellness.

Frequently Asked Questions (FAQs)

How long does weed stay in your system after a couple of puffs?

Even just a couple of puffs can be detected in your system for up to 3 days, depending on the type of test. A urine test, the most commonly used for drug screening, may still detect THC in occasional users for 1 to 3 days after light use. For blood and saliva tests, it’s typically under 24 hours, while hair follicle tests can show usage for up to 90 days.

If I smoke weed every day, how long till I’m clean?

If you’re a daily user, THC can stay in your system for 30 days or longer—especially in urine. The actual timeline to get clean varies depending on your metabolism, body fat percentage, and hydration levels, but for heavy users, it can take up to 6 weeks for weed to fully leave the body.

How long does one hit of a cart stay in your system?

One hit from a THC cart—even just a small puff—can remain detectable for 3 to 7 days in urine. While that might seem short, vape cartridges often contain highly concentrated THC, which may linger longer in your fat cells compared to traditional flower. Saliva and blood will usually clear it in a day or two, but hair tests can still flag it for months.

How long does it take for a cart to leave your system?

On average, it takes 10 to 30 days for the body to fully clear THC from a cart, depending on your usage frequency. If you’re using a cart once or twice a week, you might test positive for up to 2 weeks. Daily or chronic use? Expect it to stay well over a month.

If I smoke weed once a week, how long till I’m clean?

For someone who smokes once a week, it typically takes 7 to 10 days for THC to leave your urine. That said, if you’re being drug tested, it’s safest to assume it could linger longer. Blood and saliva tests usually clear faster—within a few days.

How long does THC from a cart stay in your system compared to flower?

THC from a cart may actually stay in your system longer than flower because of the higher potency in vape oil. While both types of THC are fat-soluble and stored similarly in the body, the concentrated form used in carts may build up more rapidly with frequent use.

How long does weed stay in your pee?

In urine, weed can be detected for:

• 1 to 3 days after one-time use
  
  
• 5 to 10 days for moderate use (a few times a week)
  
  
• 10 to 30+ days for daily or heavy users
  
  

This is why urine drug tests remain the most common—they can catch THC long after the high is gone.

How long does THC stay in your blood?

THC in your bloodstream is usually detectable for 1 to 2 days after light use, but chronic users may test positive for up to 7 days or more. However, blood tests are more accurate for detecting very recent use, not long-term consumption.

Can two hits of weed show up on a drug test?

Yes—even just two hits of weed can lead to a positive result on a urine test, especially for infrequent users. THC can be present in your system for several days, even after minimal exposure.

How long does it take to get clean from weed carts?

To get clean from weed carts, expect the detox window to range from 10 to 30 days, depending on your usage. For chronic users, the process can stretch well over a month. Exercise, hydration, and time are your best tools—there’s no shortcut that can guarantee a clean test.

Does weed stay in your system longer if you vape it?

It can. Vaping THC often delivers higher concentrations to the body, especially with carts and oil pens, which means traces of THC may linger longer in your fat cells. That’s why carts may stay in your system longer than joints, even if you feel the high is shorter-lived.

How long does weed last in your system overall?

Here’s a quick recap by test type:

• Urine: 1–30+ days
  
  
• Blood: 1–7 days (depending on usage)
  
  
• Saliva: 1–3 days
  
  
• Hair: Up to 90 days
  
  

Informational Sources (APA Style)

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2. Verstraete, A. G. (2004). Detection times of drugs of abuse in blood, urine, and oral fluid. Therapeutic Drug Monitoring, 26(2), 200–205. https://doi.org/10.1097/00007691-200404000-00020
   
   
3. Moeller, K. E., Lee, K. C., & Kissack, J. C. (2008). Urine drug screening: Practical guide for clinicians. Mayo Clinic Proceedings, 83(1), 66–76. https://doi.org/10.4065/83.1.66
   
   
4. National Institute on Drug Abuse (NIDA). (2020). Drug testing. National Institutes of Health. https://www.drugabuse.gov/publications/drugfacts/drug-testing
   
   
5. Mayo Clinic Laboratories. (n.d.). Cannabinoids (Urine) – Lab Test Information. Retrieved April 10, 2025, from https://www.mayocliniclabs.com/test-catalog/overview/83671
   
   
6. Bosker, W. M., & Huestis, M. A. (2009). Oral fluid testing for drugs of abuse. Clinical Chemistry, 55(11), 1910–1931. https://doi.org/10.1373/clinchem.2008.119149
   
   
7. Musshoff, F., & Madea, B. (2006). Review of biologic matrices (urine, blood, hair) as indicators of recent cannabis use. Therapeutic Drug Monitoring, 28(2), 155–163. https://doi.org/10.1097/01.ftd.0000201961.76201.56
   
   
8. Schwilke, E. W., Sampaio dos Santos, M. I., & Huestis, M. A. (2011). Chronic cannabis smokers’ excretion patterns of Δ9-tetrahydrocannabinol (THC), 11-hydroxy-THC, and 11-nor-9-carboxy-THC in urine. Forensic Science International, 212(1–3), 72–80. https://doi.org/10.1016/j.forsciint.2011.05.003