Cannabis 101: A Complete Beginner's Guide

Whether you have never tried cannabis or you are returning after a long break, this guide covers everything you need to feel confident walking into a licensed dispensary for the first time. At Quality Control Dispensary in Brooklyn and Staten Island, our budtenders answer these questions every day — and we put this guide together so you can read at your own pace.

What Is Cannabis?

Cannabis is a flowering plant that has been cultivated by humans for thousands of years. The species most commonly used for recreational and medicinal purposes is Cannabis sativa, which includes a broad range of varieties. The plant produces a resin rich in chemical compounds called cannabinoids and terpenes, which are responsible for the effects you feel when you consume cannabis.

The marijuana plant contains over 100 identified cannabinoids, but two dominate the conversation: THC (tetrahydrocannabinol) and CBD (cannabidiol). These compounds interact with your body’s endocannabinoid system (ECS), a network of receptors found throughout your brain, organs, connective tissues, glands, and immune cells. The ECS helps regulate mood, appetite, pain, sleep, and immune function.

Beyond cannabinoids, cannabis produces aromatic compounds called terpenes. These are not unique to cannabis — they are found in all plants and are responsible for the smell of lavender, pine, citrus, and pepper. In cannabis, terpenes contribute to the overall experience through what researchers call the entourage effect: the idea that cannabinoids and terpenes work together to produce effects greater than any single compound alone.

Common Terpenes You Will Encounter

• Myrcene — Earthy, musky aroma. The most common terpene in cannabis. Associated with relaxing effects.
• Limonene — Citrusy aroma. Found in citrus fruits. Associated with mood elevation and stress relief.
• Pinene — Pine-scented. Found in pine needles and rosemary. Associated with alertness and memory retention.
• Linalool — Floral, lavender aroma. Associated with calming, anti-anxiety effects.
• Caryophyllene — Peppery, spicy aroma. Found in black pepper and cloves. The only terpene known to directly interact with CB2 receptors.

THC vs CBD: The Basics

THC is the primary psychoactive cannabinoid in cannabis. It produces the “high” or euphoric feeling most people associate with cannabis use. THC binds to CB1 receptors in the brain, affecting perception, mood, appetite, and coordination. Effects can range from relaxation and giggles to heightened sensory awareness and creativity.

CBD is non-psychoactive, meaning it will not get you high. CBD interacts with the endocannabinoid system differently than THC and is commonly associated with relief from anxiety, inflammation, and pain. Many people use CBD products for wellness purposes without any intoxicating effects. For a deeper dive, read our full THC vs CBD guide.

Many products contain both THC and CBD in various ratios. A 1:1 ratio (equal parts THC and CBD) is popular among people who want mild psychoactive effects with the balancing properties of CBD. Higher THC ratios produce stronger euphoria, while higher CBD ratios produce little to no high.

Indica, Sativa, and Hybrid: What Do They Mean?

If you have done any research on cannabis, you have probably encountered the terms indica, sativa, and hybrid. Here is what you need to know:

• Indica strains are traditionally associated with relaxing, full-body effects. People often reach for indica products in the evening or before bed.
• Sativa strains are linked to uplifting, energizing, cerebral effects. They are popular for daytime use, creative activities, and socializing.
• Hybrid strains combine characteristics of both indica and sativa. Most modern cannabis cultivars are hybrids, leaning either indica-dominant or sativa-dominant.

That said, modern cannabis science is moving away from the indica/sativa classification as a reliable predictor of effects. The actual experience depends more on the specific cannabinoid and terpene profile of the product than on whether it is labeled indica or sativa. When you visit QCD Brooklyn or QCD Staten Island, our budtenders will help you look beyond the label to find the right product for your goals.

Consumption Methods

Cannabis comes in many forms, and the method you choose affects how quickly you feel the effects, how strong they are, and how long they last. Here is an overview of the most common consumption methods available at licensed dispensaries in New York.

Flower (Smoking)

Dried weed flower is the most traditional form. You can smoke it in a pipe, bong, or rolled in a joint or blunt. Flower offers the widest variety of strains and terpene profiles. Effects typically begin within 1 to 5 minutes and last 1 to 3 hours. Browse our Brooklyn flower selection or Staten Island flower menu.

Pre-Rolls

Pre-rolls are joints that come pre-made and ready to smoke. They are convenient for beginners who do not want to learn how to roll. Available in singles, multi-packs, and infused options (coated with concentrate for extra potency). Check out pre-rolls at QCD.

Vaporizers (Vapes)

Vape pens and cartridges heat cannabis oil or flower to a temperature that releases cannabinoids and terpenes without combustion. Vaping produces less odor than smoking and is generally considered easier on the lungs. Onset is similar to smoking (1 to 5 minutes), but effects can feel stronger per puff. See our vape selection.

Edibles

Edibles are cannabis-infused foods and beverages — gummies, chocolates, mints, drinks, and more. They are processed through your digestive system, so onset is much slower (30 to 90 minutes) but effects last significantly longer (4 to 8 hours). This is where “start low, go slow” matters most. A 2.5mg to 5mg dose is recommended for beginners. Explore edibles at QCD.

Concentrates

Concentrates are highly potent cannabis extracts (wax, shatter, live resin, rosin, budder). They typically contain 60 to 90 percent THC and are intended for experienced consumers. Concentrates are consumed through dabbing or compatible vaporizers. Learn more about what we carry in our concentrates section.

Tinctures

Tinctures are liquid cannabis extracts, usually in an oil or alcohol base, taken by placing drops under the tongue (sublingual). Sublingual absorption bypasses the digestive system, so onset is faster than edibles (15 to 45 minutes) and effects last 2 to 4 hours. Tinctures allow precise dosing because they come with measured droppers. See our tincture options.

Topicals

Topicals are cannabis-infused lotions, balms, and patches applied directly to the skin. They provide localized relief (for sore muscles or joints, for example) without any psychoactive effects. THC in topicals does not enter the bloodstream in meaningful amounts.

How to Start: The Golden Rule

Start low, go slow. This is the single most important piece of advice for any new cannabis consumer. Whether you are smoking, vaping, or eating an edible, begin with the smallest reasonable dose and wait to feel the full effects before taking more.

• Flower or vape: Take one small puff. Wait 15 minutes. If you want more, take another small puff.
• Edibles: Start with 2.5mg to 5mg of THC. Wait at least 90 minutes before considering a second dose. Seriously — wait.
• Tinctures: Start with the lowest marked dose (often 2.5mg to 5mg). Hold under your tongue for 60 seconds, then swallow.

For detailed dosing charts by method, read our Cannabis Dosing Guide.

What to Expect: Onset Times and Duration

Method	Onset	Peak	Duration
Smoking (flower)	1–5 min	15–30 min	1–3 hours
Vaping	1–5 min	10–20 min	1–3 hours
Edibles	30–90 min	2–3 hours	4–8 hours
Tinctures (sublingual)	15–45 min	45–90 min	2–4 hours
Concentrates	Immediate–2 min	5–15 min	1–3 hours
Topicals	15–45 min	1–2 hours	2–4 hours (localized)

Dosing Basics

Dosing depends on your tolerance, body weight, metabolism, and the specific product. Here are some general guidelines for beginners:

• Microdose: 1–2.5mg THC. Subtle effects. Good for focus, mild relaxation, or testing your tolerance.
• Low dose: 2.5–5mg THC. Mild euphoria, slight relaxation. A good starting point for most beginners.
• Moderate dose: 5–15mg THC. Stronger euphoria, noticeable psychoactive effects. For people with some experience.
• High dose: 15–30mg THC. Strong effects. Not recommended for beginners.
• Very high dose: 30mg+ THC. Experienced consumers only. Significantly increased chance of adverse effects for beginners.

Our full dosing guide includes charts broken down by product type and experience level.

Safety Tips for Beginners

Cannabis is generally well-tolerated, but it is important to use responsibly, especially when you are starting out:

1. Buy from a licensed dispensary. Products from licensed retailers like QCD are lab-tested for potency, pesticides, heavy metals, and contaminants. Unlicensed sources offer no such guarantees.
2. Do not drive under the influence. Cannabis impairs reaction time and judgment. New York DUI laws apply to cannabis just as they do to alcohol. Read more in our NY marijuana laws guide.
3. Stay hydrated. Cannabis can cause dry mouth. Keep water nearby.
4. Eat beforehand. Consuming cannabis on an empty stomach can intensify effects, especially with edibles.
5. Choose your environment. Use cannabis in a comfortable, safe setting, especially your first time. Being around trusted people helps.
6. Do not mix with alcohol. Combining cannabis and alcohol amplifies both substances and increases the risk of nausea and disorientation.
7. Know your limits. If you feel uncomfortable, remember that the effects are temporary. Find a quiet space, drink water, and breathe deeply.

Cannabis Legality in New York

Cannabis is fully legal for adults 21 and older in New York State under the Marijuana Regulation and Taxation Act (MRTA), signed into law in 2021. Adults can possess up to 3 ounces of flower or 24 grams of concentrate. You can consume cannabis in most places where tobacco smoking is permitted.

You must purchase from a licensed dispensary — buying from unlicensed shops or street dealers is still illegal and carries risks including untested products and potential legal consequences. Quality Control Dispensary holds a New York State adult-use retail license at both our Brooklyn and Staten Island locations.

For the complete breakdown, read our New York Cannabis Laws in 2026 guide.

Your First Dispensary Visit

Nervous about walking into a dispensary for the first time? You are not alone — and there is nothing to worry about. Licensed dispensaries in New York are designed to be welcoming, professional environments. You will need a valid government-issued ID proving you are 21 or older. No medical card is required for adult-use purchases.

At QCD, our budtenders will ask about your experience level, what effects you are looking for, and your preferred consumption method. They will guide you to appropriate products and answer any questions. We accept cash, debit cards, and DutchiePay. For the full walkthrough, read Your First Dispensary Visit.

Frequently Asked Questions

What is marijuana (cannabis)?

Cannabis is a flowering plant that produces cannabinoids like THC and CBD, which interact with your body’s endocannabinoid system. It has been used for thousands of years for medicinal, recreational, and industrial purposes. The plant contains over 100 different cannabinoids and hundreds of terpenes that contribute to its effects.

What is the difference between indica, sativa, and hybrid?

Indica strains are traditionally associated with relaxing, body-focused effects. Sativa strains are linked to energizing, cerebral effects. Hybrids combine traits of both. However, modern cannabis science shows that effects depend more on the specific cannabinoid and terpene profile than on the indica/sativa classification alone.

What is the safest way to try marijuana for the first time?

Start with a low-THC product or a balanced THC:CBD ratio. Take one small puff of flower or vape and wait 15 minutes before taking more. If trying edibles, start with 2.5mg to 5mg of THC and wait at least 90 minutes. Stay hydrated, be in a comfortable setting, and have a trusted person nearby.

How long do the effects of marijuana last?

Effects vary by consumption method. Smoking or vaping: onset in 1 to 5 minutes, lasting 1 to 3 hours. Edibles: onset in 30 to 90 minutes, lasting 4 to 8 hours or longer. Tinctures (sublingual): onset in 15 to 45 minutes, lasting 2 to 4 hours. Topicals: localized effects within minutes, lasting 1 to 2 hours with no psychoactive high.

Is cannabis legal in New York?

Yes. New York legalized adult-use cannabis under the Marijuana Regulation and Taxation Act (MRTA) in 2021. Adults 21 and older can purchase weed from licensed dispensaries like Quality Control Dispensary, possess up to 3 ounces of flower or 24 grams of concentrate, and consume in most places where tobacco smoking is allowed.

Last updated: April 29, 2026