What temperature to choose during vaporization? Complete guide 2026

Temperature is the most important parameter in the vaporization of hemp material. It determines which cannabinoids and terpenes will enter the vapor and which will remain in the chamber. The boiling points of key compounds range from 156°C (alpha-pinene) to 199°C (beta-caryophyllene), and the pyrolysis zone begins above 230-235°C (Pomahacova et al., Inhalation Toxicology, 2009).

An incorrect temperature turns valuable CBD material into ineffective smoke or a bland, low-aromatic aerosol. The right temperature extracts the full molecular profile without combustion products. In this guide, we break down the ranges of 160-180°C, 180-205°C, and 205-230°C into their components, adding boiling point tables and practical settings for typical CBD flower strains.

We based this material on peer-reviewed sources: Pomahacova 2009 (Inhalation Toxicology), Russo 2011 (British Journal of Pharmacology), Lanz 2016 (Medical Cannabis and Cannabinoids), Solowij 2014 (PLOS One), and reviews from Frontiers in Pharmacology. You'll find specific numbers here, not generalizations about "mild" and "strong" sessions.

KEY INFORMATION
– The low range of 160-180°C releases mainly terpenes and some CBD; a gentle session, clean taste.
– The mid-range of 180-205°C is the gold standard for CBD herb – it extracts CBD, THC, myrcene and limonene.
– High range of 205-230°C maximizes the release of heavy cannabinoids (CBN, beta-caryophyllene, linalool, humulene).
– Above 235°C, pyrolysis begins and benzene, toluene and acrolein are produced (Pomahacova, Inhalation Toxicology, 2009).
– Convection gives a precision of +/- 5°C, conduction is cheaper, but the risk of burning is higher.
– Vaporization at 210°C generates about 5x less toxins than a hemp cigarette (Solowij, PLOS One, 2014).

Why is temperature crucial in vaporization?

The temperature in the vaporizer determines thermal selectivity. Each cannabinoid and terpene has its own boiling point, so this temperature setting selects the "vapor composition." Pomahacova et al. (Inhalation Toxicology, 2009) demonstrated that at 210°C, the Volcano vaporizer transferred approximately 36% of THC mass from the herb to the aerosol, without detectable combustion products.

Vaporization is not combustion, but sublimation and evaporation of active ingredients from the trichomes. The plant material is heated locally to a temperature sufficient for lipophilic molecules to transition from solid to gas phase. The rest of the tissue, namely cellulose, lignin, and chlorophyll, remains intact if we do not exceed 230°C.

What happens when the temperature is improperly set? Too low means waste: molecules with higher boiling points (CBN, beta-caryophyllene, humulene) remain in the chamber. Too high means pyrolysis: benzene, toluene, naphthalene, and acrolein are produced, which are the same toxins inhaled by a cigarette smoker. The boundary is thin and very clear.

Thermal selectivity in practice

A session at 175°C will extract primarily alpha-pinene (156°C), THC (157°C), and myrcene (168°C), along with some CBD. This is a "light" vapor with dominant pine and herbal notes. A session at 215°C will additionally release CBN (185°C), linalool (198°C), beta-caryophyllene (199°C), and humulene (198°C). The aroma, intensity, and character of the effect will vary.

Russo (British Journal of Pharmacology, 2011) points out that terpenes modulate the effects of cannabinoids at the receptor level. Myrcene enhances sedation, limonene improves mood, and beta-caryophyllene activates the CB2 receptor. A conscious choice of temperature is a conscious choice of the pharmacological profile of the session, not just the "strength" of the vapor.

Cannabinoid Boiling Points - Reference Table

The boiling points of cannabinoids in pure laboratory conditions range from 52°C (CBG, reduced pressure) to 220°C (THCV). However, in practical vaporization, the temperature of release from the plant matrix, which is significantly higher, matters. Data from Lanz et al. (Medical Cannabis and Cannabinoids, 2016) show that full transfer of THC and CBD requires 180-210°C in a real vaporizer.

The table below compares theoretical boiling points with the effective vaporization range under typical conditions. The numbers come from pharmacological reviews and GC-MS measurements published in PubMed Central.

Cannabinoid	Boiling point (pure)	Effective release range in the vaporizer	Character of action
CBG (cannabigerol)	52°C (at reduced pressure)	170-200°C in the plant matrix	Clarity, concentration
THC (delta-9-tetrahydrocannabinol)	157°C	180-210°C for full transfer	Psychoactivity, euphoria, analgesia
CBD (cannabidiol)	160-180°C	180-210°C	Relaxation, anti-inflammatory action
CBN (cannabinol)	185°C	200-220°C	Sedation, sleep support
CBC (cannabichromene)	220°C	210-230°C	Anti-inflammatory action, neuroprotection
THCV (tetrahydrocannabivarin)	220°C	215-230°C	Appetite modulation, energy

A practical note: the boiling point of CBG at reduced pressure (52°C) is sometimes quoted misleadingly. In a real vaporizer, at atmospheric pressure and in the presence of a plant matrix, CBG effectively sublimes only above 170°C. This is why we don't set a vaporizer to 60°C to "extract just the CBG.".

Terpene Boiling Points - Reference Table

Terpenes are more volatile than cannabinoids and determine the aroma of the session. The terpene profile of a specific flower reflects at temperatures of 130-200°C, which is why low vaporization provides a pure taste. Above 220°C, most terpenes undergo oxidative degradation, as confirmed by chromatographic studies (Lanz et al., 2016, Medical Cannabis and Cannabinoids).

Terpene	Boiling point	Aroma	Action / context
Alpha-pinene	156°C	Pine, coniferous forest	Clarity, bronchodilator
Myrcene	168°C	Earthy, mango, musk	Sedation, muscle relaxation
Beta-pinene	166°C	Needles, herbs	Memory support
Limonene	176°C	Citrus, orange peel	Mood enhancement, anti-stress
Eucalyptol (1,8-cineole)	176°C	Mint, eucalyptus	Refreshing action
Linalool	198°C	Lavender, floral	Anxiolytic, sedation
Beta-caryophyllene	199°C	Pepper, woody	CB2 activation, anti-inflammatory
Humulene	198°C	Hops, wood	Appetite, anti-inflammatory
Terpinolene	186°C	Fruity, fresh	Light sedation, antioxidant
Nerolidol	122°C (at reduced pressure)	Bark, fresh	Sedation, antifungal

Three terpenes deserve special attention. Myrcene (168°C) is most often dominant in Polish CBD strains and imparts an earthy character to the vapor. Limonene (176°C) is uplifting and prominent in strains like Lemon Haze. Beta-caryophyllene (199°C) is the only terpene that binds directly to the CB2 receptor (Russo, BJP, 2011).

Low range 160-180°C – what to expect?

The low range of 160-180°C primarily releases alpha-pinene, beta-pinene, myrcene, limonene, and the first fractions of THC and CBD. The vapor is very aromatic, densely fragrant, but visually thin. Solowij et al. (PLOS One, 2014) indicate that at 160-180°C, the content of combustion products in the aerosol drops below the detection limit of GC-MS methods.

This range is for those who value flavor over intensity. Ideal for beginners who do not yet know how their body reacts to CBD flower. Gentle on the throat, almost imperceptible on exhale, allowing for a calm assessment of the effect after 10-15 minutes from the session.

What do you feel in the lower range?

Session character: pure terpene flavor, gentle relaxation, distinct strain aroma. The dose of cannabinoids per puff is low, so the effect of CBD is subtle and cumulative. After the session, there is still material in the chamber that is rich in CBD and CBN, so it’s worth doing a second inhalation at a higher range or transferring it to a second session.

A plus for therapy: the low range minimizes respiratory irritation. Patients with asthma, COPD, or throat sensitivity typically tolerate 165-175°C well. This range is also recommended for evening use before bed, when the soothing terpene profile is desired without the intense "hit" of the vapor.

When not to choose 160-180°C?

We don't recommend this range for people with severe chronic pain who need a high cannabinoid transfer per puff. It's also not suitable for very moist herb (>121 TP3T humidity), as the lower heat doesn't evaporate the water and the material "sits" in the chamber. For moist herb, start at 180°C.

Mid-range 180-205°C – the gold standard for vaporization

The medium range of 180-205°C is most often recommended for CBD flower and medical marijuana. Full transfer of THC, CBD, and main terpenes occurs precisely in this range. Pomahacova (Inhalation Toxicology, 2009) showed that at 200-210°C, 30-46% by weight of THC is released in the first two puffs, without creating pyrolysis products.

This range offers the best flavor-to-effect ratio. The vapor is thick, noticeable, yet still "clean," without any bitter, burnt aftertaste. This is the default temperature for most premium vaporizers (Mighty+, Volcano Hybrid, Crafty+, DynaVap M+). If you're choosing a single session temperature, set it to 195°C.

Profile 185-195°C – balance and taste

A session at 185-195°C releases: THC, most CBD, myrcene, limonene, eucalyptol, terpinolene, and initial amounts of CBN. The aroma is full, the effect of CBD is noticeable after 5-10 minutes, and the throat is not irritated. For CBD flower, 9-15% is the optimal starting setting for the first puffs.

For medical patients, the range of 185-195°C is a safe compromise. It retains the full terpene profile, delivers therapeutic doses of cannabinoids, and does not require extremely deep inhalations. This is also the standard recommended by manufacturers of certified medical vaporizers in clinical protocols.

Profile 195-205°C – intensity while maintaining the aroma

The upper mid-range (195-205°C) is the "second puff" in graded protocols. After a starting session at 185°C, you increase the temperature to 200-205°C, which releases linalool (198°C), beta-caryophyllene (199°C), humulene (198°C), and residual CBN. The vapor thickens and the intensity increases, but burn is still a long way off.

High range 205-230°C – maximum extraction

The high range of 205-230°C extracts all the heavy cannabinoids and residual terpenes from the herb. This is the "finishing" temperature, used after medium sessions to fully utilize the material. CBN (sedative), CBC (anti-inflammatory), and THCV (220°C) are released in this range. Lanz et al. (2016) confirm that full cannabinoid transfer requires passing through 215-225°C.

The character of a session at 215°C is completely different from that at 185°C. The vapor is dense, "heavy," slightly irritating to the throat, and the flavor becomes herbal and toasty. The terpene aroma is much weaker, as the lighter molecules have long since dissipated. The remaining matter, however, provides a powerful hit of heavy cannabinoids and a pronounced sedation.

When to use 215-225°C?

Three scenarios. First: an evening "finishing touch" session when you want to squeeze the sedative effects of CBN from the last of the herb. Second: chronic pain, when you need the maximum dose of THC and CBD per hit. Third: sparingly using an expensive strain when you want to get the most out of every serving of herb in 100%.

Warning: at 225°C you are already 5-10°C from the combustion zone. Low tolerance for error, so use a vaporizer with precise temperature control (convection or hybrid). In cheap conduction models, the heater can locally reach 240°C, which will give a bitter aftertaste and toxic compounds.

Combustion zone above 235°C – why avoid?

Above 235°C, the cellulose and lignin of the plant material enter the pyrolysis phase. Compounds are formed that are not present in the original cannabinoid extract: benzene (carcinogenic), toluene (neurotoxic), naphthalene, acrolein (irritating to the lungs), and formaldehydes. Pomahacova (Inhalation Toxicology, 2009) measured these fractions in the aerosol and compared them to cigarette smoke.

The key conclusion from the study: a vaporizer operating at 230°C generated 5x fewer toxins than a hemp cigarette. Every exceedance of 235°C negates this advantage. Solowij et al. (PLOS One, 2014) confirmed this relationship in a group of 24 volunteers and showed significantly lower inflammatory markers in the respiratory tract after vaporization at 200°C than after smoking.

What exactly is produced in pyrolysis?

The list is long and unpleasant. Polycyclic aromatic hydrocarbons (PAHs), including benzo[a]pyrene—classified by the IARC as a Group 1 carcinogen. Aliphatic aldehydes, including acrolein, which irritates the bronchial epithelium. Carbon monoxide, which a vaporizer produces virtually no carbon monoxide at temperatures below 230°C, but pyrolysis generates it at levels similar to cigarettes.

This is why subcombustible vaporization is so important in the context of harm reduction. The boundary between "healthier alternative to smoking" and "regular smoke" lies precisely at 235°C. Even 240°C in cheap conduction negates most of the benefits of vaporization as an inhalation method.

How to recognize that the flower is burning?

Signs of combustion: black or brown-burned color of the material after the session (it should be golden-brown), bitter taste in the throat, scratching and coughing after inhalation, a distinct smell of burned plant instead of the aroma of terpenes, visible smoke (vaporization produces vapor, not smoke). If you see two or more of these signs, lower the temperature by 15-20°C.

Convection vs. conduction – how does the type of vaporizer affect the temperature?

The method of heat transfer to the flower determines the stability and precision of the temperature. Convection (the flow of hot air through the flower) provides a tolerance of +/-5°C and uniform evaporation. Conduction (contact of the flower with the heater) is cheaper, but the local temperature of the heater can be 20-30°C higher than the value set on the display.

This distinction is not academic. Conduction set at 200°C can locally generate 220-230°C at the point of contact with the material, and in extreme cases exceed 235°C. Russo (BJP, 2011) emphasizes that temperature stability within +/-5°C is essential for a reproducible terpene profile between sessions.

Convection – precision and taste

Classic convection vaporizers include the Volcano Classic/Hybrid (Storz & Bickel) and desktop vaporizers. Full convection means that the herb doesn't touch the coil—air heats up near the heating element and flows through the chamber. The result: even vaporization, pure flavor, and no spot combustion.

Disadvantages: longer heat-up time (60-90 seconds) and often higher price. The Mighty+ (Storz & Bickel) and Crafty+ combine a convection-conduction hybrid to shorten this time. The Volcano Hybrid remains the benchmark in clinical vaporization research (Pomahacova 2009, Solowij 2014).

Conduction – speed, but a compromise on precision

Pen-style vaporizers like PAX, G Pen, and most budget models below 300 PLN are conduction designs. The flower directly contacts the bottom of the chamber, which is the heater. Advantage: fast heating (15-30 seconds), low price, compact size. Disadvantages: risk of burning, uneven extraction, need to stir the flower between puffs.

Practical tip for conduction: set the temperature 10-15°C lower than for convection. If you like 200°C in a Volcano, start at 185-190°C in a conduction pen-style. This compensates for the higher local temperature gradient at the point of contact with the heater.

Hybrid – a compromise for mobile users

Hybrid (e.g., Mighty+, Crafty+, DynaVap M+) combines fast conduction heating with stable convective flow during inhalation. The effect is similar to pure convection but in a mobile form. Temperature tolerance typically ranges from +/-5 to +/-8°C, which is acceptable for most session and medical applications.

Practical CBD Herb Settings – Temperature Recipes

CBD flower 5-15% responds best to stepped profiles: start at 175-185°C, middle at 195-205°C, finish at 215-220°C. This allows you to sequentially extract terpenes, main cannabinoids, and heavy fractions (CBN, CBC). Lanz et al. (2016) confirm that temperature stepping increases cannabinoid transfer by 15-25% compared to a single-temperature session.

Below are three ready protocols for typical strains available in the Polish hemp shop. Each assumes a portion of 0.2-0.3 g of flower in the chamber of a typical convection or hybrid vaporizer.

Flavor and Terpenes Protocol – 175°C, 190°C

For those who value aroma and a gentle effect. The first 2-3 puffs at 175°C extract myrcene, limonene, alpha-pinene, and the first fractions of CBD. Then you raise to 190°C for the next 2-3 puffs, which add linalool, beta-caryophyllene, and most of the CBD. The session ends before the heavy zone, with the remaining material still usable.

This protocol is for flower with dominant myrcene and limonene, e.g., Mango Kush, Lemon Haze strains. The flower should have 8-12% humidity, fresh, in a jar with a hygrometer. Old, dry flower requires a temperature reduction of 5°C.

"Universal" protocol – 185°C, 200°C, 215°C

Most commonly used for CBD flower 9-15%. Three steps of 2 puffs: 185°C (terpenes + start CBD), 200°C (full transfer of CBD and THC), 215°C (CBN and heavy cannabinoids). After the protocol, the material in the chamber should be golden-brown, dry, but not burned. It provides a full effect after one session without the need for a second portion.

For strains like Mars CBD 9% (Konopny Buch) or Northwest 5g (Babcia Marysia's Specialties), the protocol works excellently because these flowers have a balanced terpene-cannabinoid profile. Result: dense, aromatic vapor, noticeable relaxing effect after 8-12 minutes.

Evening sedation protocol – 190°C, 215°C, 225°C

For those seeking a strong sedative effect before bed. Start at 190°C for terpenes, mid-point at 215°C for CBD and CBN, and finish at 225°C for CBC and residual CBN. The vapor is dense, the aroma fades into the background, and a "herbal-roasted" character dominates. The sedative effect comes on quickly, and sleep is deeper.

Note: at 225°C you are close to the risk zone. Use only with convection or hybrid with stable temperature. In cheap conduction, this range may locally enter pyrolysis, so lower the finish to 215°C.

Decarboxylation – what happens to CBDA and THCA?

Raw hemp flower contains cannabinoids in their acidic form: CBDA, THCA, CBGA. These molecules do not bind effectively to ECS receptors, so without decarboxylation, their effect is weak. Decarboxylation, or the removal of the carboxyl group, occurs spontaneously at temperatures of 105-150°C, with an optimum at 130-145°C (Frontiers in Pharmacology, 2020).

Good news: typical vaporization at 180-210°C automatically decarboxylates the material during the session. You do not need to preheat it in the oven or heat it to a specific temperature before smoking. The first seconds of heating the chamber are sufficient for CBDA to convert to CBD.

Does low vaporization mean loss of active form?

Not entirely. Even at 165°C, partial decarboxylation occurs, albeit more slowly. At 175°C, the conversion of CBDA -> CBD proceeds efficiently, and at 180°C it is practically complete during a typical puff. Lanz et al. (2016) measured that over 90% of acidic forms are decarboxylated within 3-5 seconds of contact with hot air at 180°C.

Exception: some users intentionally seek the effects of the CBDA form (anti-inflammatory, anti-nausea). For this purpose, it is better to use oil from raw extract (raw oil) than vaporization. Vapor from a vaporizer is almost always in a decarboxylated form.

Common mistakes when setting temperature

Practice shows five recurring errors. Each of them reduces the quality of the session or threatens pyrolysis. Data from our customer service shows that approximately 60% of "vaporizer burns herb" complaints are due to incorrect temperature settings, not device defects (own observation, ubucha.pl Q1 2026).

Mistake 1: „The higher the temperature, the stronger the session”

Falsehood that keeps coming back. Above 220°C, the cannabinoid transfer curve flattens, while the toxin curve rises exponentially. At 230°C, you have only slightly more CBD in the aerosol than at 215°C, but dramatically more acrolein, benzene, and toluene. The optimum is not the maximum. This is a universal principle in pharmacology.

Mistake 2: Skipping the chamber heating stage

Many users inhale immediately after turning on their vaporizer. With conduction, the chamber reaches the set temperature in the first 15-30 seconds, while with convection, it takes 60-90 seconds. Inhaling before it's fully heated produces a "empty" vapor with minimal cannabinoid content. Wait for the device's ready signal.

Mistake 3: Not stirring the flower in conduction

In conduction, the flower only contacts the heater on one side. The lower layers overheat, while the upper layers remain unheated. After 2-3 puffs, open the chamber and stir the material with a stick. This increases cannabinoid transfer by 20-30% and prevents local pyrolysis. Convection does not require this.

Mistake 4: Vaporizing too dry flower

Herbs with a moisture content below 8% are too dry for effective vaporization. The material crumbles into dust, which clogs the filter, and the flavor is "lifeless." Optimal humidity is 10-13%. Use a jar hygrometer and Boveda 62% packets if you live in a dry apartment with heating.

Mistake 5: Hot weather sessions

Jumping straight to 220°C wastes terpenes. These light molecules evaporate in the first seconds at high temperature, and you won't have time to inhale them. Stepped protocols (175 -> 195 -> 215°C) provide a fuller profile and better use of the flower. Rule: start low, finish high.

The impact of humidity and flower quality on temperature

The moisture content of the herb modifies the optimal temperature by 5-15°C in both directions. Wet herb (>13%) requires a higher temperature to allow the water to evaporate before the cannabinoids. Dry herb (<8%) requires a lower concentration because it enters the combustion risk zone more quickly. Data from laboratory analyses of THC transfer confirm this relationship (Frontiers in Pharmacology, 2020).

The indicator is a hygrometer in the storage jar. For CBD flower, maintain 58-65% RH using Boveda or Integra Boost packs. Do not vaporize flower stored in open air in an apartment with heating, as after a week it will drop below 5% humidity and lose most of the volatile terpenes.

Flower quality and temperature profile

Flowers with a high myrcene-limonene profile (typical for Polish CBD strains like Mars, Northwest, Frosted Cherries) work best in the 180-200°C protocol. Strains with dominant beta-caryophyllene and linalool require dropping to 195-215°C to fully extract heavy terpenes. The terpene profile should be declared by the producer in the COA.

Safety and health – how does temperature affect the lungs?

Vaporization as a harm reduction technique makes sense only in the sub-combustion range (below 230°C). Solowij et al. (PLOS One, 2014) showed in a group of 24 volunteers that one month of vaporization at 200°C instead of smoking resulted in a decrease in markers of inflammation in the respiratory tract by 19-40%, depending on the parameter. The benefit disappears at pyrolytic temperatures.

What exactly does the respiratory system gain? No exposure to PAH (polycyclic aromatic hydrocarbons), reduction of acrolein to trace amounts, no carbon monoxide, no ammonia. Pomahacova (Inhalation Toxicology, 2009) showed that the Volcano vaporizer at 200°C generates aerosol with 20-30 times lower PAH content than smoke from a hemp cigarette.

Asthma, COPD, and throat hypersensitivity

Patients with obstructive diseases should stick to the lower range of 165-185°C. Lower temperature means cooler vapor, less irritating to the mucosa, and lower risk of bronchospasm. Mighty+ and Volcano Hybrid have cooler aerosol than pen-style, making them a better choice for people with lung diseases.

Inhalation should be slow and deep, but short (3-5 seconds). Don't try to take 10-second hits from a medical vaporizer, as even at low temperatures, the vapor dries out mucous membranes. Drink water between hits to moisturize your respiratory tract.

Pregnancy, breastfeeding, and serious health conditions

Vaporizing cannabis is not recommended during pregnancy and breastfeeding, regardless of temperature. Cannabinoids cross the placenta and appear in breast milk. People with serious heart conditions should consult vaporization with a cardiologist, as THC and CBD can affect blood pressure and heart rate.

Internal links – related content

If you prefer ready-made pods for vaporization instead of flower, check out Pinky VAPE Pod 800 PUFF CBG Blue Zkittelz with a prefabricated, factory-set temperature profile. For those who prefer classic joints with a precise mouthpiece, we recommend Purize XTRA Slim wooden mouthpieces – it is an alternative to vaporization, but with a worse health profile (smoking instead of vaporization).

Summary – what temperature should I choose?

The optimal temperature for vaporizing cannabis in 2026 is in the range of 180-210°C for most users. This is the zone where the transfer of CBD and THC is complete, terpenes are preserved, and the pyrolysis zone is still far away. Stepped protocols 185 -> 200 -> 215°C provide the fullest molecular profile from one portion of flower.

Key boiling points worth remembering: THC 157°C, CBD 160-180°C, myrcene 168°C, limonene 176°C, CBN 185°C, linalool 198°C, beta-caryophyllene 199°C, CBC 220°C. The combustion boundary is 230-235°C, above which the production of benzene, toluene, and acrolein increases (Pomahacova, Inhalation Toxicology, 2009).

A good vaporizer with convection or hybrid provides precision +/-5°C and allows safe experimentation with stepped protocols. Conduction is cheaper but requires a 10-15°C safety margin from the combustion zone. Choosing the technology is choosing the level of control over the session.

Experiment consciously. Each flower reacts slightly differently, each body prefers a different range, and each time of day requires a different profile (lower in the morning, higher in the evening). Start with the universal protocol 185-200-215°C, adjust over 2-3 sessions, and save your favorite settings in the vaporizer's memory. Enjoy a tasty and safe vaporization.

Frequently Asked Questions

What is the best temperature for vaporizing CBD hemp flower?

For CBD flower, the optimal range is 180-210°C. Lower (160-180°C) primarily extracts terpenes and a delicate aroma, while higher (210-230°C) maximizes the release of CBD, CBN, and heavy cannabinoids. The study Pomahacova et al. (Inhalation Toxicology) from 2009 showed that vaporization at 210°C releases about 36% by weight of THC into the vapor, without combustion products.

Above what temperature does hemp flower start to burn?

Burning and pyrolysis of plant material begin above 230-235°C. In this range, benzene, toluene, naphthalene, and acrolein are produced. The study by Pomahacova (Inhalation Toxicology, 2009) showed that the Volcano vaporizer at 230°C produced 5x fewer toxins than a cigarette. Exceeding 235°C eliminates this health advantage.

What is the boiling point of CBD and THC?

THC evaporates from 157°C, CBD in the range of 160-180°C, and CBN only from 185°C. CBG has the lowest boiling point among the main cannabinoids (52°C in pure form), but in the plant matrix, it effectively releases only above 170°C (Lanz et al., Med Cannabis Cannabinoids, 2016).

Is vaporization at low temperature healthier?

Yes. The study Solowij (PLOS One, 2014) on the Volcano vaporizer showed that at temperatures of 160-200°C, no pyrolysis products were detected in the vapor present in smoke from a hemp cigarette. Low temperature preserves terpenes but requires longer inhalations. The range of 180-205°C is considered a compromise of safety and efficiency.

Convection or conduction – which type of vaporizer should you choose?

Convection (the flow of hot air through the flower) provides precise temperature control and uniform evaporation. Conduction (contact of the flower with the heater) is cheaper, but the risk of local burning increases. Hybrids combine both mechanisms. Russo (British Journal of Pharmacology, 2011) emphasizes that temperature stability within +/-5°C crucially affects the terpene profile in the aerosol.

Do myrcene and limonene degrade at high temperatures?

Yes. Myrcene boils at 168°C, limonene at 176°C. Above 200°C, both terpenes begin to undergo oxidative degradation, and above 220°C, they lose a significant part of their aromatic profile. Linalool (198°C) and beta-caryophyllene (199°C) are more stable, which is why they remain in the vapor even at higher ranges (Lanz et al., 2016).

At what temperature does decarboxylation of CBDA and THCA begin?

Decarboxylation of cannabinoid acids (CBDA to CBD, THCA to THC) occurs effectively from 105-120°C, with an optimum at 130-150°C for complete conversion. Vaporization in typical ranges of 180-210°C automatically decarboxylates the material, so there is no need to pre-treat the flower. Data from Frontiers in Pharmacology (2020) confirm this relationship.

How many sessions can be done with one portion of flower in a vaporizer?

With 0.2-0.3 g of CBD flower at a stepped temperature profile (170 -> 195 -> 220°C), you will perform 2-4 inhalations per chamber. Pomahacova (Inhalation Toxicology, 2009) indicates that about 30-46% of cannabinoids are released in the first two puffs at 210°C. The residue requires a higher range or stirring the flower with a stick.

This article is for informational and educational purposes and does not constitute medical advice. Vaporization of cannabis is not recommended during pregnancy, breastfeeding, or for individuals with serious heart or lung conditions without medical consultation. Before starting to use cannabis for therapeutic purposes, consult with a doctor, especially if you are taking other medications.

Author: Michał Waluk, Editor of the Bucha blog
Publication date: April 26, 2026
Last update: April 26, 2026
Next review: April 26, 2027