Frequently Asked Questions


How long does weed stay in your system?

It depends! How long cannabis stays in your system depends on how much and how often you consume. Everyone is different. What we do know is that the commonly cited detection time of 30+ days may be accurate for some, but that’s largely the exception. A 1989 study of chronic users showed a maximum detection window of 25 days at a sensitivity of 20 ng/mL. However, only one subject in this study tested positive after 14 days. On average, it took  9.8 days to lower THC levels that aren’t detectable.

Reporting to Leafly, Paul Cary, director of the Toxicology and Drug Monitoring Laboratory at University of Missouri, claims that for first time or occasional users, “it would be unusual for the detection of cannabinoids in urine to extend beyond 3-4 days following the smoking episode” (at the 50 ng/mL cutoff).

Bottom line, how long weed stays in your system depends on a variety of factors, but for most users who don’t consume excessively, THC is usually out of your system within 10 days.

Is smoking weed healthy?

Cannabis is safer than most popular drugs, legal or illegal. But, Is smoking weed healthy? That depends on how you use it and how old you are. For young people whose brains are still developing, using cannabis (or other drugs) carries a much higher risk than it does for fully matured adults. For adults who use cannabis moderately for recreational purposes, it can be relaxing and produce positive health benefits. And, clearly for many chronically ill patients, cannabis can improve their health and quality of life considerably.

For more a more comprehensive look at the risks and benefits of cannabis, read the following articles:

Where can I buy recreational marijuana?

In the State of California, anyone over the age of 21, can now legally buy recreational marijuana in California with a state or federally issued ID. However, only dispensaries with both state and local permits can sell to customers who don’t have a doctor's recommendations for marijuana. Harvest is proud to offer recreational cannabis at both of our San Francisco locations.

How can I come down from a high faster?

First off, don’t panic. You can’t overdose from cannabis, but it can make you uncomfortable if you take too much. Nonetheless, if you’ve consumed more than you’d like, you can try a number of remedies to come down from a high faster:

  • Black peppercorn: Believe it or not, black peppercorn can be highly effective and provide near instant relief. You can sniff or chew on a few black peppercorns and the onset can be immediate.
  • Take CBD: CBD lessens the effects of THC.
  • Rest or take a nap    
  • Drink lots of water and light snacks
  • Take a shower or bath

How much does recreational marijuana cost in San Francisco?

According to the Winter 2018 report from, you can expect to pay on average $14.50 a gram or $277.50 an ounce in California. The price of weed in San Francisco generally trends higher than state averages and other big cities like Los Angeles. How much recreational marijuana costs in San Francisco averages $14 a gram and $294 an ounce according to

Prices are higher than they were last year, because once cannabis was legalized recreationally on January 1, 2018, a 15% state excise tax kicked in which is exclusive of any local government taxes.

Harvest believes in providing the highest quality, all-natural, lab-tested cannabis at the fairest prices possible. For our latest deals, visit our website to subscribe to our newsletter. For a list of all our prices, visit our menu.

Is CBD legal in San Francisco?

Absolutely. CBD is one of more than 100 cannabinoids in the cannabis plant. Because CBD doesn’t produce psychoactive effects like THC -- it doesn’t get you “high.” -- CBD is legal in San Francisco and most of the world provided it contains little to no THC (<.03% in the U.S.). It’s widely available in California and San Francisco in a variety of forms.

What are CBD tincture effects?

CBD tinctures produce numerous effects and benefits. Evidence suggests CBD relieves anxiety, may keep depression at bay, alleviates nausea, and appears to also prevent psychosis. The high concentration of alcohol intensifies its effects and accelerates the body’s absorption of it.  

Most people prefer to use the sublingual method of administration, which means “under the tongue.” Keep in mind that because CBD tinctures are consumed orally, onset of effects will take much longer than smoking because rather than reaching the lungs immediately, the active ingredients must travel through the digestive system first. .

Where to buy marijuana

If you are over the age of 21, you can purchase cannabis from any dispensary that has both state and local permits. However, in practice, where to buy marijuana in is dependent on where you live. Not many dispensaries are permitted and many localities don’t allow recreational marijuana. In practice, you can buy marijuana in the major cities in California, and a handful of smaller markets. Harvest is proud to offer recreational cannabis at both of our San Francisco locations.

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