Professor Herb
Professor Herb Hemp Briquette Hash 3.5g, Gelato
£13.99
In stock — dispatched today if ordered by 3pm
The Gelato flavour in the Professor Herb briquette range, a 3.5g heat-pressed block of Italian hemp material infused with terpenes. Creamy dessert sweetness over a green hemp base. 18+ only.
- Free UK delivery on orders over £30
- Third-party lab-tested — COA on every batch
- Discreet plain packaging, no branding outside
- Sold to over-18s only, age-checked at checkout
Professor Herb Hemp Briquette Hash 3.5g Gelato is a heat-pressed block of Italian hemp material infused with terpenes, in a creamy dessert flavour. Because the flavour is added rather than inherent, it is also the part of this product most likely to fade, and how you keep it matters more than it would for almost anything else on this shelf. Not one shop selling any flavour of this briquette mentions that, so this page starts there.
The aroma is the product, and it is the first thing to go
A terpene-infused briquette is bought for its smell and taste. Strip those out and every flavour in the range is the same pressed hemp material. So the added aroma compounds are not a garnish on this product, they are the thing that distinguishes it, and they happen to be the least stable ingredient in the pot.
Terpenes are volatile by definition. They evaporate at ordinary room temperatures, and published work on cannabis terpenes puts the onset of meaningful loss from around twenty-one degrees upwards. They also oxidise on contact with air, which changes the character of what remains rather than simply reducing it.
The factor that surprises most people is light. Across the research, light exposure comes out ahead of temperature as the largest single driver of terpene loss, and the figures are not marginal: one frequently cited experiment recorded almost total loss of terpene content after twenty-four hours under bright light. Reported real-world losses on badly stored material run to somewhere between a third and a half within six months.
There is even published work on terpene-infused pre-rolled cones specifically, looking at temperature, humidity and light together. That is about as close a published analogue to a terpene-infused hemp product as exists, and its conclusions point the same way.
None of that means a briquette goes off. It means the thing you chose it for gets quieter, and the flavour that separates Gelato from Forbidden Fruit narrows over time until you are left with the base material and a hint of what it was.
Which makes the clear pot an awkward choice
Look at how this is packaged. The briquette sits in a clear screw-top pot fixed to the front of a hanging card, so it can hang on a shop peg with the material visible through the plastic. It is good retail design and it is honest about what you are buying, because you can see the product before you own it.
It is also, for a volatile aroma, close to the worst container available. Transparent plastic on a lit shop fixture is exactly the combination the research identifies as the fastest route to terpene loss, and the product may sit under that lighting for some time before anybody buys it.
There is a further wrinkle. Almost every listing for this range, including the manufacturer's own, still describes the packaging as a smell-proof resealable foil zip-lock pouch. Foil is opaque and a zip closure limits air exchange, so on the specific question of keeping an aroma intact the pouch those pages describe would be the better container of the two. Whatever prompted the change, it went the wrong way for the thing the product is sold on.
We are describing a property of transparent packaging, not a fault in this pack, and we have no measurements of our own for any of it. It is simply worth knowing before you decide where to put it once it arrives.
How to keep one, in practice
The fix is simple and takes no effort at all. Get it out of the light, keep it cool, and keep air away from it.
In practice that means moving the pot off the card and into a drawer, a cupboard or a tin rather than leaving it on a windowsill or a shelf. Somewhere at ordinary room temperature or slightly below is right, and a spot that does not swing between warm and cold is better than one that does. Keep the lid on properly between uses, because the pot is only airtight when it is actually screwed shut.
Do not put it in a fridge or a freezer. Cold is good for terpene retention in principle, but a cold container brought back into a warm room draws condensation, and moisture on a pressed hemp block is a problem you do not want to introduce for a marginal gain.
Break off what you are going to use and leave the rest whole. A solid block presents far less surface area to the air than the same material crumbled, so breaking up the whole briquette at once and storing the pieces is the single easiest way to accelerate the loss. The technique for breaking one up properly is on our main briquette page.
Buy what you will get through rather than stockpiling. This applies to any flavoured product and it applies more here than to a plain one, because there is more to lose.
| Factor | What it does | Practical answer |
|---|---|---|
| Light | The largest single driver of terpene loss in published work | Store it in a drawer, cupboard or tin, off the card |
| Heat | Terpenes evaporate faster as temperature rises | Ordinary room temperature or slightly cooler, and stable |
| Air | Oxidises the aroma compounds and changes their character | Keep the lid screwed shut between uses |
| Surface area | Crumbled material loses far more than a solid block | Break off what you need and leave the rest whole |
| Time | Losses of a third to a half reported inside six months stored badly | Buy what you will actually get through |
Why 180 to 200 degrees is the number for this material
Our main briquette page gives a vaporising range of roughly 180 to 200 degrees for this material without saying where it comes from. Terpene chemistry is the answer, and it fits neatly with everything above.
The lighter aroma compounds, the monoterpenes, boil in the region of 155 to 185 degrees. The heavier sesquiterpenes sit higher, roughly 200 to 275. Combustion, the point at which material burns rather than vaporises, begins somewhere around 230.
So the window exists because it is above the point where the aroma compounds carry over and below the point where the material starts burning. Go lower and you get very little. Go higher and you cross into combustion, which destroys the terpenes outright and gives you smoke instead of the flavour you paid attention to when choosing between fourteen ribbons.
It is the same chemistry as the storage question seen from the other end. Terpenes leave at low temperatures slowly and at high temperatures instantly, and the useful band for a flavoured product is narrower than for a plain one.
What Gelato tastes like, and which Gelato you are buying
The manufacturer's description of this flavour is five words, and every other one we have checked runs to four or five. Ours is longer.
Gelato is the creamiest profile of the ones we stock. It reads as a dairy dessert rather than a fruit: sweet, soft, faintly vanilla, with a milky roundness that takes the edges off. There is a light berry note underneath in the way an ice cream can carry one without tasting of fruit. Against the rest of the range it sits close to Wedding Cake but smoother and less doughy, without the peppery finish that one has.
The hemp base is present, as it is in all of them, and the creaminess sits over it more gently than the sharper flavours do. That makes Gelato one of the easier ones to start with, and also one of the ones that suffers most from the fading described above, because a soft profile has less to lose before it stops reading as anything in particular.
One practical point before you buy. Gelato is a popular name and there are three different things on this site carrying it, which is worth untangling.
| Product | What it actually is | Stated content |
|---|---|---|
| Gelato briquette (this page) | 3.5g pressed hemp material, terpene infused | 175mg stated |
| [Euphoria Gelato CBD Hash](/products/euphoria-gelato-cbd-hash-19-1g) | 1g solid hash, a different maker and a different grade | 19 per cent |
| [Wild Hemp hemp wraps](/products/wild-hemp-3-hemp-wraps-20-pack) | Gelato is one of the wrap flavours, a rolling material | No cannabinoid content |
Who should pick a different one
If you want a flavour with some bite to it, this is the wrong end of the range. Gelato is deliberately soft and there is nothing sharp anywhere in it.
If a pack is going to sit unopened for months, a plain material will hold up better than a flavoured one. Everything above applies more to this product than to an unflavoured hemp blend.
If you want something you can use straight from the container, a briquette is a solid block and has to be broken down first. The brand's loose Premium Hemp Blend is the same material in a ready form.
If you want a concentrate, this is not one. The solid extracts and washed grades on our hemp and hash shelf state several times the content and behave differently when heated.
Over-18s only. This is not a food and it is not a medicine, and nothing here should be read as suggesting otherwise.
Frequently asked questions
- Does the flavour fade on a terpene-infused hemp briquette?
- Yes, and it is the part most likely to. Terpenes are volatile compounds that evaporate at ordinary room temperature and oxidise on contact with air, so the added aroma is the least stable thing in the pot. Published work on cannabis terpenes reports losses of roughly a third to a half within six months when material is stored badly. The briquette itself does not spoil, it simply gets quieter.
- What is the best way to store a Professor Herb hemp briquette?
- Out of the light, at stable room temperature or a little below, with the lid screwed shut and the block left whole until you need it. Moving the pot off the hanging card into a drawer, cupboard or tin is the single most useful thing you can do, because light comes out ahead of heat as the biggest cause of terpene loss in the published research.
- Should hemp hash go in the fridge?
- We would not. Cold slows terpene loss in principle, but taking a cold container into a warm room draws condensation, and moisture on a pressed hemp block introduces a worse problem than the one you were trying to solve. A cool, dark, stable cupboard achieves most of the benefit with none of that risk.
- Why does the clear pot matter for a flavoured hemp product?
- Because transparent packaging on a lit shop fixture is close to the worst case for a volatile aroma. The foil zip-lock pouch that almost every listing for this range still describes would actually be better on that specific point, being opaque and closable. It is not a safety issue in any sense, just a consideration for where you keep it once it is yours.
- Why is 180 to 200 degrees the recommended range for vaporising this?
- It sits between two thresholds. The lighter aroma compounds boil at roughly 155 to 185 degrees, so below that band very little carries over. Combustion begins around 230, and burning the material destroys the terpenes outright and gives smoke rather than flavour. The window is chosen to be above the first number and safely below the second.
- Is the Professor Herb Gelato the same as the Euphoria Gelato hash?
- No, and they are not comparable products. This is a 3.5g pressed briquette of terpene-infused hemp material stating 175mg. The Euphoria one is a 1g solid hash from a different maker stating 19 per cent, which is a different grade produced a different way. They share nothing but a flavour name that both brands happen to like.
- Does breaking up the whole briquette at once cause any harm?
- It speeds up the fading. Crumbled material presents far more surface area to the air than a solid block of the same weight, so the aroma leaves faster. Breaking off what you are about to use and leaving the remainder intact in the pot is the simplest way to keep the last of a briquette tasting like the first of it.
- How does Gelato compare with the other Professor Herb briquette flavours?
- It is the creamiest and softest of the ones we stock, reading as a dairy dessert rather than a fruit, with a vanilla roundness and a faint berry note underneath. Wedding Cake is its closest neighbour but doughier and with a peppery finish. Pineapple Express and Forbidden Fruit are both fruit-led, and Bubba Gum OG is far sweeter and openly synthetic.
Updated July 2026
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