Hash Rosin

What Is Hash Rosin?

Hash rosin is a solventless cannabis concentrate made by pressing hash — usually ice water hash, also called bubble hash — between two warm plates until the resin melts and flows out as a glossy, golden oil. Nothing else is added: no butane, no propane, no ethanol, no CO2. Just heat, pressure and a fine mesh filter bag. Because the starting material is already a concentrate of trichome heads rather than whole buds, hash rosin is cleaner, more flavorful and more potent than rosin pressed from flower, and it's become the gold standard of the solventless world.

That's the short answer. The long one is below, and it's more detailed than anything else ranking for this term: the step-by-step press process with real temperatures, pressures and micron sizes (each one sourced), the 1–6 star grading scale, what hash rosin actually costs, how it compares with live rosin, live resin and distillate in a side-by-side table, how to dab it without scorching it, and how to tell good jars from bad. If you already know you want to try it, our THCA live rosin collection is all hash rosin pressed from fresh-frozen flower.

How Is Hash Rosin Made? The Press Process, Step by Step

Hash rosin is a two-stage product: first you make hash, then you press it. Here's the full process the way solventless makers describe it, with the numbers from the equipment makers and hash educators who publish them.

1. Start with resin-heavy plants. Hash makers pick cultivars for how well they "wash" — how readily the trichome heads break off — not just for potency. Material is either dried and cured, or frozen right after harvest ("fresh frozen"), which is what makes a rosin "live."
2. Wash in ice water. The plant material goes into a vessel with ice and cold water and is gently agitated. The cold makes the trichome heads brittle, so they snap off the plant and sink.
3. Filter through stacked micron bags. The water is drained through a series of mesh "bubble bags," each finer than the last. Each bag catches a different size of trichome head (see the micron table below). Lowtemp Industries says the highest-quality heads collect in the 90µ and 120µ bags.
4. Dry the hash. Wet hash can't be pressed — Lowtemp's drying guide warns that pressing it creates steam that ruins the oil. Most producers freeze-dry it (Lowtemp cites an 18–24 hour cycle with the hash spread about ⅛ inch thick); the slower alternative is air-drying for four to five days or more in a cold room around 50°F at 45–50% humidity.
5. Grade it. The dried hash is rated on the 1–6 star scale (more below). The best grades are often sold as full-melt hash; mid-to-high grades are what most makers press.
6. Load a rosin bag. The hash goes into a small, fine-mesh filter bag. Trimleaf lists common rosin-bag sizes of 36µ, 72µ, 90µ and 115µ — finer bags give cleaner rosin, coarser bags give more yield — and says most competition pressers use 36µ or 72µ.
7. Press low and slow. The bag sits between parchment on heated plates. The Press Club's rosin temperature guide recommends 140–200°F for bubble hash (140–170°F for a "cold" press, 170–200°F for a hotter, higher-yield press). Lowtemp's temperature guide suggests staying around 140–180°F for hash, and says cold presses can run up to five minutes. Pressure is ramped up gradually; The Press Club's pressure guide puts bubble hash at 500–1,500 PSI on the material.
8. Collect the oil. The rosin is scraped off the parchment. What happens next decides the final texture — it can be jarred as-is or whipped and cured into a buttery consistency (see the texture section).
9. Test and jar. Reputable producers send each batch to a third-party lab for a certificate of analysis (COA) before it's sold.

Hash rosin press temperature, pressure and yield at a glance

These are the published ranges from hash-equipment educators. They disagree a little — that's normal, because every strain, wash and press behaves differently — so treat them as starting points, not rules.

Starting material	Press temperature	Pressure on material	Typical yield
Bubble hash (ice water hash)	140–200°F (Press Club); ~140–180°F (Lowtemp); 150–190°F (Trimleaf)	500–1,500 PSI	60–70%+
Dry sift / kief	140–200°F (Press Club); ~180–200°F for lower-grade sift (Lowtemp)	500–1,500 PSI	30–40%
Flower	180–220°F (Press Club); ~180–200°F (Lowtemp)	1,000–2,000 PSI	15–25%

Sources: The Press Club's rosin temperature guide, The Press Club's pressure guide, The Press Club's yield benchmarks, Lowtemp's temperature guide and Trimleaf. Note that "PSI on material" isn't the number on your press gauge — The Press Club explains it's the press's force divided by the area of the rosin bag.

Wash bag microns: what each bag catches

A micron (µ) is a thousandth of a millimeter. Lowtemp Industries breaks down a standard 8-bag set like this:

• 220µ: the work bag — ice, plant matter and dirt.
• 190µ: mostly plant matter.
• 160µ: large trichome heads of mixed quality (about 3–4 star).
• 120µ and 90µ: mature, high-quality heads — the full-melt range (5–6 star).
• 73µ: medium-quality heads (about 3–4 star).
• 45µ: small, immature heads (1–2 star).
• 25µ: very immature heads and fine contaminants like stalk fragments.

A Weedmaps explainer adds that mid-range fractions of 73–120µ often perform best, depending on the cultivar. When you see a jar labeled with micron numbers — ours read "45u + 149u" — that's the producer telling you which bag fractions went into the press.

How is rosin made from flower — and why hash rosin is different

All rosin is made the same basic way: heat and pressure squeeze the oil out of the plant's resin glands. The difference is what goes into the press. Flower rosin presses whole dried buds in a bag, so the plates have to push the oil out through all that plant material — it needs more heat and pressure, yields only 15–25%, and tends to be darker and less refined. Hash rosin skips the plant matter by separating the trichome heads first, so it presses cooler, yields 60–70%+ of the hash's weight, and carries more of the terpenes. The tradeoff is labor: you need a wash, a freeze dryer and a lot more starting material to end up with the same gram.

Where rosin came from

Hash itself is ancient, and modern ice water extraction traces back to hash makers like Mila Jansen in the 1990s and early 2000s, per Weedmaps. Rosin pressing is much newer. According to High Times, Phil "Soilgrown" Salazar of Pasadena, California, is credited with bringing rosin tech to the cannabis community in early 2015, after he used his wife's hair straightener to press no-melt hash flat for dabbing and pressed it too hard — the oil separated from the plant matter. He shared the method online and it spread fast. Earlier forum experiments with heat and pressure exist, but the 2015 hair-straightener moment is when rosin went mainstream. The name, per Leafly's rosin guide, borrows from the rosin used on violin bows.

The 1–6 star hash rating scale

Hash is graded by how completely it melts when heated. The scale below is the community standard as described in The Press Club's guide to how bubble hash is rated; we couldn't confirm who first coined it.

• ★ 1 star: the lowest grade — no melt, lots of plant particles and dust. Edibles territory.
• ★★ 2 stars: presses easily but leaves residue when dabbed. Good for cooking, topping a bowl or a joint.
• ★★★ 3 stars ("half-melt"): leaves small traces when heated. Dabbable, but a poor experience — better pressed into rosin.
• ★★★★ 4 stars: the entry level for dabbing. Bubbles and domes vigorously but leaves contaminants. A solid choice for pressing.
• ★★★★★ 5 stars: true bubble hash, nearly melts away on a quartz banger — and, per The Press Club, the best starting material for rosin.
• ★★★★★★ 6 stars (full melt): melts almost completely, like rosin, without being pressed. It's so clean that it's usually dabbed as-is rather than pressed.

So the best hash rosin usually comes from 4- to 5-star hash. The very top grade is rarely pressed because it's already a finished product.

Hash Rosin vs Live Rosin: What's the Difference?

This is the most common point of confusion, and the answer is simple: live rosin is a type of hash rosin. "Hash rosin" describes the process — pressing hash instead of flower. "Live" describes the starting plant — frozen fresh at harvest instead of dried and cured. Live rosin is hash rosin pressed from fresh-frozen material, so all live rosin is hash rosin, but not all hash rosin is live. You'll also see "live hash rosin," which means exactly the same thing. Hash rosin from dried, cured plants is still excellent; it just tends to taste more cured and less like the living plant. For the full breakdown of how live rosin compares with live resin, see our live rosin guide.

Hash Rosin Terpenes and Flavor

Flavor is the whole reason people pay more for hash rosin, and flavor is terpenes — the aromatic compounds that make a strain smell like citrus, pine, berries or gas. They're fragile. Leafly's rosin guide says pressing below 250°F keeps terpenes intact, Lowtemp's temperature guide recommends staying at or below 220°F, and Leafly's dab-temperature guide notes that most terpenes and cannabinoids boil below 400°F. Every step of the hash rosin process is built around keeping that heat low: ice water for the wash, freeze-drying instead of warm air, and plates often under 200°F.

A few things decide how much terpene character ends up in the jar:

• Fresh frozen vs dried: freezing the plant at harvest locks in volatile terpenes that would otherwise evaporate during drying and curing — Leafly's rosin guide calls live rosin more flavorful than other rosins for that reason.
• Press temperature: cold presses (roughly 140–170°F for hash) trade some yield for brighter flavor; hotter presses squeeze out more oil but can dull the top notes and darken the color.
• Micron fraction: cleaner fractions carry less plant matter, so the strain's own aroma comes through instead of a grassy, hashy background.
• Post-press handling and storage: warmth and air drive terpenes off, which is why good rosin is jarred airtight and kept cold.

The strain still sets the flavor. Citrus-forward rosin usually leans on limonene; pine on pinene; peppery gas on caryophyllene; earthy, musky fruit on myrcene; floral notes on linalool; and sweet, herbal, fruity-green notes on terpinolene or ocimene. The only way to know a jar's real terpene profile is a lab test that includes terpenes; when a COA doesn't list them, trust your nose.

What Hash Rosin Looks Like: Color, Texture and Consistency

Good hash rosin ranges from pale blonde and cream to bright gold and light amber. Darker brown oil usually means lower-grade hash, plant matter in the press, too much heat, or age. Color alone isn't proof of quality — some strains simply press darker — but bright, clean color is a good sign.

Texture depends on what the maker does after pressing:

• Jam and sauce: wet, glossy and spoonable, often with small crystals forming as THCA separates from the terpene-rich oil.
• Badder and budder: whipped and cured into a creamy, cake-frosting texture. Our THCA badder guide covers that texture in more detail.
• Diamonds and terp sauce: when THCA crystals grow large, you get chunks sitting in liquid — see THCA diamonds.

Two of the most common texture terms on labels describe what happened right after the press. Fresh press rosin is jarred straight off the plates and stays glossy and sappy. Cold cure rosin is jarred and held cold for days or weeks so it "nucleates" into a thick, buttery badder. Same oil, different finish. It's also normal for rosin to change color or separate in the jar over time — our product pages note this and recommend stirring it before use.

How Strong Is Hash Rosin? Effects and Potency

Hash rosin is one of the strongest things you can put in a dab rig. A few real numbers:

• Our COAs: Dayglow Mousse live rosin tests 86.72% THCA (76.18% total THC) and Juicy Jet 86.07% THCA (75.56% total THC), both from Badger Labs, which our product pages describe as ISO 17025-accredited.
• A Michigan example: Lansing City Pulse reported a 74.6% THC live hash rosin in its review.
• Compared with flower: flower tests far lower — see what's a good THCA percentage — so a single small dab can carry as much as a few hits of flower, or more.

Note the THCA vs THC difference on a COA: THCA converts to THC when heated, and total THC is calculated with a 0.877 factor, which is why 86% THCA reads as about 76% total THC. Our explainer on THCA vs THC walks through it.

What does hash rosin feel like?

The effects are the strain's effects, just concentrated and fast. Because rosin carries more of the plant's terpenes alongside the cannabinoids, many users describe it as fuller and more "true to the strain" than distillate, which is mostly isolated THC. A sativa-leaning rosin like Dayglow Mousse tends to read uplifting and social; an indica-leaning one like HBIC more relaxing in the body. These are reported experiences, not guarantees — dose, tolerance and setting matter as much as the jar.

• Onset: seconds to a couple of minutes when dabbed or vaped.
• Peak: roughly 10–30 minutes in.
• Duration: typically one to three hours, longer at high doses or low tolerance.

→ Experience it yourself — shop Diesel Hemp's THCA Live Rosin

How to Use Hash Rosin (and the Best Dab Temperature)

Raw THCA isn't intoxicating — it needs heat to convert to THC. Hash rosin is meant to be vaporized, and you have several ways to do it:

• Dab rig with a quartz banger: the classic. Heat the banger, let it cool to your target temperature, drop the rosin in, cap it and inhale slowly.
• Electronic rig or e-nail: the easiest way to hold an exact temperature every time.
• Concentrate vaporizer pen: a portable, lower-temperature option.
• Topping a bowl or joint: a small smear on flower adds potency and flavor — no rig needed.
• A rosin vape pen: pre-filled, nothing to heat or measure. Our Live Rosin disposable vape pen ($39) is filled with the same rosin.

Dab temperature for hash rosin

Sources disagree, so here's the honest spread. Leafly's dab-temperature guide puts hash rosin in its mid-range of 500–545°F, calls 400–450°F "low-temp," and treats 545–570°F as standard for most concentrates. Mission Dispensaries' guide recommends 350–450°F for flavor. Our own live rosin guide suggests 480–540°F on quartz. The pattern is consistent: lower is tastier, higher is harsher. Start low — around 450–500°F — and move up only if the dab isn't vaporizing fully.

There's a safety reason too. In a 2017 Portland State study in ACS Omega, researchers who heated cannabis terpenes the way a dab rig does found they produced benzene and methacrolein. Low-temperature dabs, which avoid scorching the oil, are a sensible habit.

How Much Hash Rosin Should You Use?

Less than you think. Start with a dab the size of a grain of rice — or smaller if you rarely use concentrates — take one slow hit, and wait 10–15 minutes before deciding on more. With jars testing in the 70–86% range, the jump from flower is big, and you can't take a dab back. Regular concentrate users usually work up to larger dabs over time. If you're using the vape pen, one or two short draws is the equivalent starting point.

How to Store Hash Rosin

• Keep it cold and dark. The fridge is the right place for jars you'll finish in a few weeks; the freezer for longer storage.
• Keep it airtight. Glass jars with tight lids (ours ship in vacuum-seal POP VAC jars) slow terpene loss.
• Let cold jars warm up before opening. Lowtemp's drying guide recommends 15–20 minutes so condensation doesn't form inside the jar.
• Expect some change. Rosin can darken, separate or "sugar up" over time. That's mostly cosmetic; a quick stir fixes separation.

How to Judge Hash Rosin Quality

• A current COA from a named third-party lab, showing THCA, delta-9 THC and total THC. Ours are on the lab results page; our guide on how to read a THCA COA explains the math.
• Micron and source info on the label — fractions, fresh frozen or cured, and the strain.
• Clean color: blonde to gold to light amber. Very dark, muddy oil is a warning sign.
• Loud, specific aroma when you open the jar. Hash rosin should smell like the strain, not like generic hash.
• A clean dab: good rosin vaporizes completely at a reasonable temperature and leaves little or no residue in the banger.
• "Solventless" on the label — and no added terpenes, distillate or cutting agents.

How Much Is Hash Rosin? Real Price Ranges

Prices vary a lot by state, grade and whether you're buying from a dispensary or a hemp brand online:

• Denver dispensaries: Westword reported rosin as low as $18–$22 a gram at one store, with well-known brands around $40–$50 a gram — down from $80–$90 a few years earlier, and from the $85–$120 a gram one manager remembered paying.
• Michigan: Lansing City Pulse found live hash rosin at about $80 a gram in 2020, while most other concentrates ran $60 or less.
• Versus live resin: a Westword "Ask a Stoner" column said buyers pay about $40 more per gram for live rosin than for comparable live resin.
• Hemp-derived THCA rosin online: our 1g jars are $44 each, and the three-jar THCA Live Rosin Bundle is $124.
• Making your own: Leafly's rosin guide says DIY rosin presses start around $400–$500 — before bubble bags, ice, a freeze dryer and plenty of starting material.

Why is hash rosin so expensive?

Yield and labor. Our live rosin guide notes a strain that washes well returns only about 3–6% of its frozen weight as hash, then pressing returns 60–70% of that hash as rosin. Every step — washing, freeze-drying, grading, pressing — is hands-on and small-batch, and the best fractions are limited. A hydrocarbon extraction run can process far more material for far less work, which is why live resin usually costs less.

Hash Rosin vs Other Concentrates

Here's how hash rosin stacks up against the other names you'll see on a menu. Potency ranges for other products vary widely by producer, so we've kept the numbers to what we can source.

	Hash rosin	Live rosin	Flower rosin	Bubble hash	Live resin	Distillate
Starting material	Ice water hash or dry sift	Hash from fresh-frozen plants	Dried flower	Fresh-frozen or dried plants	Fresh-frozen plants	Any extract, refined
Chemical solvent	None	None	None	None (ice water)	Butane or propane	Yes, then distilled
How it's made	Hash pressed with heat	Same, from frozen plants	Buds pressed with heat	Washed and sieved, not pressed	Solvent extraction, purged	Distilled to isolate cannabinoids
Flavor	Full, strain-true	Brightest, most "alive"	Good, more plant-forward	Hashy to full, depends on grade	Strong, strain-forward	Little unless terpenes are added
Yield	60–70%+ of hash	60–70%+ of hash	15–25% of flower	A few % of the plant	Higher than rosin	High
Relative price	High	Highest	Moderate	Moderate to high (full melt)	Moderate	Lowest

Yields from The Press Club's yield benchmarks. Short version: if flavor and a clean, solventless process matter most, hash rosin is the top choice. If price per milligram matters most, distillate wins.

Hash vs hash rosin

Hash is the trichome heads themselves, collected and dried. Hash rosin is what you get when you press that hash and filter out the leftover plant fats and particles. Rosin is cleaner, dabs more completely and usually tastes better than the hash it came from — except at the 6-star full-melt level, where the hash is already about as pure as it gets.

Is hash rosin solventless?

Yes. Water and ice are used for the wash, but no chemical solvent ever touches it — the oil is separated by heat and pressure alone. That's the main reason people choose it over live resin, which is extracted with butane or propane and then purged.

Side Effects and Cautions

• Too much, too fast: the most common problem. Concentrates can cause anxiety, a racing heart, dizziness or paranoia in people who aren't used to them. Start with a rice-grain dab.
• Dry mouth and red eyes: the usual cannabis side effects, amplified.
• Harsh hits: usually a sign the banger is too hot. Lower the temperature.
• Tolerance: regular dabbing raises tolerance quickly. Taking breaks helps.
• Who should skip it: anyone under 21, pregnant or nursing, with a heart condition or a history of psychosis, or taking prescription medication without talking to a doctor first.

Don't drive or operate machinery after using hash rosin. Nothing on this page is medical advice, and nothing here is intended to diagnose, treat, cure or prevent any disease.

Is THCA Hash Rosin Legal?

Hemp-derived THCA rosin is sold under the 2018 Farm Bill, which defines hemp as cannabis containing no more than 0.3% delta-9 THC on a dry-weight basis — see the USDA hemp program. THCA rosin is high in THCA and low in delta-9 before it's heated. State laws differ, and both state and federal rules are changing, so check your state's current law before you order. And whatever the label says, THCA hash rosin will show up on a drug test — once heated, it's THC. More on that in does THCA show up on a drug test?

Hash Rosin at Diesel Hemp

Every rosin we sell is hash rosin. Our product pages describe each jar as made from fresh-frozen cannabis and pressed without solvents, and our THCA live rosin collection explains the process: fresh-frozen flower is washed in ice water into bubble hash, then pressed with heat. That makes it live hash rosin. Our premium jars are labeled with their micron fractions (45u + 149u), and our two premium jars have posted COAs above 86% THCA.

• Dayglow Mousse THCA Live Rosin — Dayglow × Modified Mousse, sativa-leaning; orange citrus, fuel and berry; 86.72% THCA. 1g, $44.
• Juicy Jet THCA Live Rosin — Laser Jet × Modified Mousse; jet fuel and fruit gum; 86.07% THCA. 1g, $44.
• HBIC THCA Live Rosin — Purple Pop × Gelato, indica-leaning; berry, grape candy and light gas. 1g, $44.
• GovernMint Oasis THCA Live Rosin — GMO × Gush Mints from Purple City Genetics; minty, herbal diesel. 1g, $44.
• THCA Live Rosin Bundle — three 1g jars for $124.

Don't dab? Our Live Rosin disposable vape pen ($39, 0.5g) is filled with our own solventless rosin — the product page says ice-water hash from fresh-frozen flower, pressed with heat and pressure, with no distillate, no added terpenes and no cutting agents. It's currently available in Dayglow. All sales are final, except that a broken vape is replaced.

Shop THCA Live Rosin at Diesel Hemp

• THCA Live Rosin — the full lineup of solventless hash rosin, 1g jars from $44.
• Dayglow Mousse THCA Live Rosin — sativa-leaning citrus and fuel, 86.72% THCA, $44.
• Juicy Jet THCA Live Rosin — gassy and fruity, 86.07% THCA, $44.
• HBIC THCA Live Rosin — berry, grape and light gas, indica-leaning, $44.
• Live Rosin Disposable Vape Pen — rosin without a rig, $39.
• Live rosin vs live resin — the encyclopedia guide to live rosin.

Keep Reading: The Rosin Family

• Hash rosin starts as bubble hash — see how ice water hash is made, from the wash to the freeze dryer.
• If you want the bigger picture, here's what solventless rosin means and how it differs from solvent extracts.
• Fresh press rosin is jarred straight off the plates and stays glossy and sappy.
• Cold cure rosin is held cold after pressing until it whips into a thick, buttery badder.

Frequently Asked Questions

What is hash rosin?

Hash rosin is a solventless concentrate made by pressing ice water hash (bubble hash) or dry sift between warm plates. The heat and pressure squeeze the resin out through a fine mesh bag, leaving a golden oil with no chemical solvents.

How is hash rosin made?

Plants are washed in ice water to knock off the trichome heads, which are filtered through micron bags, dried (usually freeze-dried) and graded. The hash is then loaded into a rosin bag and pressed — about 140–200°F and 500–1,500 PSI on the material, per The Press Club.

Is hash rosin the same as live rosin?

Not exactly. Live rosin is hash rosin made from fresh-frozen plants, so all live rosin is hash rosin, but hash rosin can also be made from dried, cured plants. See our live rosin guide.

Is hash rosin better than live resin?

It depends on what you value. Hash rosin is solventless and prized for flavor; live resin is made with butane or propane, usually costs less and can be just as potent. Many concentrate fans prefer rosin for its clean process and taste.

How strong is hash rosin?

Very. Our Dayglow Mousse and Juicy Jet live rosins test at about 86% THCA, and a Michigan live hash rosin reviewed by Lansing City Pulse tested 74.6% THC — several times stronger than flower.

How much is hash rosin?

Roughly $18 to $80+ a gram. Westword found Denver rosin as low as $18–$22, with top brands around $40–$50; Lansing City Pulse reported about $80 a gram in 2020. Our THCA live rosin is $44 a gram.

Why is hash rosin so expensive?

Low yield and lots of labor. Only a small share of the plant becomes hash, then pressing returns about 60–70% of that hash as rosin, and every step is done in small batches.

Is hash rosin solventless?

Yes. Ice and water are used for the wash, but no butane, propane, ethanol or CO2. The oil is separated with heat and pressure alone.

What temperature should I dab hash rosin at?

Lower is better for flavor. Leafly lists 500–545°F for hash rosin, and many people go lower, around 450–500°F. Start low and raise it only if the dab doesn't fully vaporize.

How do you smoke hash rosin?

Dab it in a rig or e-rig, use a concentrate vaporizer, top a bowl or joint with a small amount, or use a pre-filled rosin vape pen.

Can you vape hash rosin?

Yes — in a concentrate vaporizer or a rosin cartridge. Our Live Rosin disposable vape pen is filled with solventless rosin, $39.

What's the difference between hash and hash rosin?

Hash is the dried trichome heads. Hash rosin is that hash after it's pressed and filtered, which removes leftover plant fats and particles, so it dabs cleaner and usually tastes better.

How long does hash rosin last?

Months if it's kept airtight, cold and dark. It may darken or separate over time; stir it and keep it in the fridge or freezer for the best flavor.

Will hash rosin show up on a drug test?

Yes. THCA becomes THC when heated, so THCA hash rosin can cause a positive drug test.

Where can I buy hash rosin online?

Diesel Hemp sells hemp-derived THCA live rosin — hash rosin pressed from fresh-frozen flower — in 1g jars from $44, like Dayglow Mousse, plus a $39 rosin vape pen. Check your state's laws before you order.

Related Strains

• Live Rosin — hash rosin from fresh-frozen plants, and how it compares with live resin.
• THCA Badder — the whipped, creamy concentrate texture.
• THCA Diamonds — crystalline THCA and terp sauce.
• THCA Flower — what THCA flower is and how it works.
• THCA vs THC — why heat matters, and how total THC is calculated.
• Dayglow Mousse — the strain behind our Dayglow Mousse rosin.
• GMO — the garlicky parent of GovernMint Oasis.
• Limonene — the citrus terpene behind bright rosin flavors.
• Does THCA Show Up on a Drug Test? — what to know before you dab.
• Browse the Full Diesel Hemp Encyclopedia