Cannabutter

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Every edible in Hempdustry but one is made from Cannabutter, and cannabutter is a four-step job: an oven, a rinse, a slow simmer, then the butter. This page walks through each step with its exact numbers, so your very first batch can be the best one there is. What you cook with the butter afterwards is on Edibles.

On this page: The best butter on the first try · Why an oven at all? · 1. Decarboxylator · 2. The cauldron wash · 3. Infuser · 4. Cannabutter · Scorched Hemp · For pack makers

buds or leaves ─► Decarboxylator ─► water cauldron (optional) ─► Infuser + milk + heat ─► Cannabutter

JEI or REI (and EMI on Minecraft 1.21.1) show every step on this page in game, the cauldron's included.

The best butter on the first try

What you need: a Decarboxylator and some furnace fuel · 6 buds of any strain (or anything else that makes 24 Decarboxylated Hemp) · a water cauldron · an Infuser standing on a lit campfire · a bucket of milk, cow's or a Bucket of Hemp Milk · fifteen minutes near the tub.

1. Cook the buds in the Decarboxylator. Each bud gives 4 Decarboxylated Hemp; you want 24.
2. Rinse them. Right-click a full water cauldron with the stack and it comes back as Washed Decarboxylated Hemp.
3. Pour the milk. Right-click the Infuser with the bucket; you get the empty back.
4. Put all 24 washed hemp in the Infuser's hemp slots — and nothing else. A single unwashed or scorched item anywhere in the batch, and the top grade is off the table.
5. Wait the full fifteen minutes. The butter appears in the output slot at 5:00 as Standard, turns Clean at 11:00 and Perfect at 15:00. Don't take it early, keep the fire lit, and stay close enough that the tub's chunk stays loaded.
6. Collect it when the bubbling stops and the bar is full — or let the spout pour it into a chest for you.

That is Dose 24, Perfect cannabutter: as strong and as good as butter gets. Everything below explains why each step is the way it is, and what you can trade away.

Tip: 19 hemp is already enough for the top strength tier — five buds' worth. 24 is simply the most one batch will hold.

Why an oven at all?

Raw hemp does nothing in your stomach — the living plant makes an inactive acid, and only heat turns it into the stuff that works — so everything you eat has been heated first, in the Decarboxylator or, as Scorched Hemp, in a furnace, and smoking needs no oven because burning is the heat. That is why no bud, leaf or flower is ever edible in the mod. (The Infuser solves a second, separate problem: the active part dissolves in fat, not in water — hence butter, and not tea.) More on the rules the mod runs on: Design Notes.

1. Decarboxylator

The Decarboxylator is a squat hemp-brick oven with three trays that cook side by side off one fire.

B C B
B   B
B B B

B = Block of Hemp Bricks · C = Copper Ingot → Decarboxylator

It is expensive on purpose. Seven Block of Hemp Bricks (the 3×3 block, not the Hemp Brick item) are 63 Hemp Bricks, which are 252 Hempcrete, which are 504 Hemp Stem. Edibles are meant to be a goal you work towards, not a first-day crop, and the price is paid in the crop rather than in some unrelated ore. Building one earns Activation Energy. (If you want butter before you can afford it, see Scorched Hemp.)

Using it

• Fuel goes in the slot under the flame: anything a furnace burns, the mod's own Hemp Stem and Hemp Bale included. The fire is shared and burns while anything is cooking, so three busy trays get three times the work out of each piece of fuel: one coal cooks 9.6 items across three trays, 3.2 in a single tray.
• Each tray cooks on its own timer: 25 seconds per item. Fill all three and nothing waits on anything else. Like a furnace, an item is used up when it finishes, not when it starts.
• Everything lands in the one collection slot, which holds a single stack of 64. When it is full the trays wait — so empty it, or put a hopper underneath.
• If the fire goes out or the slot fills, a tray's progress cools off rather than freezing, as a furnace's does.

In a tray	Out comes
Purple Kush Buds, Lemon Haze Buds or Beldía Buds	4 Decarboxylated Hemp	Beldía is new in 2.1
Hemp Leaf	1 Decarboxylated Hemp	from trimming and harvesting — Growing Hemp
Schwag	2 Decarboxylated Hemp (half a bud)	new in 2.1

Every strain gives the same Decarboxylated Hemp: strain matters when you smoke, and stops mattering at the oven door. Nothing else goes in — not stems, not seeds, not Scorched Hemp, and never hash: the oven takes plant matter, the bowl takes resin (Hash and Concentrates).

While it burns the oven glows (light level 13), crackles and smokes from its copper flue. It is stone, mined with any pickaxe, and it does not catch fire.

Hoppers and comparators

It takes hoppers the way a furnace does: from above into the trays, from the sides into the fuel slot, and underneath a hopper pulls out the Decarboxylated Hemp (and the empty bucket a lava bucket leaves behind). A comparator reads how full it is, as on a furnace.

Tip: A burning Decarboxylator also heats an Infuser stood on top of it — but only while its fire is lit, and the Infuser then sits where the tray hopper would go. A campfire is the steadier stove.

Naming it

New in 2.1. Rename a Decarboxylator in an anvil and the name titles its screen; break it and it drops still named, like a furnace.

Setting: world.machineSpeedMultiplier in config/hempdustry.json speeds the oven up or slows it down (default 1.0; 2.0 is twice as fast). It drives the Hemp Press too. See Configuration.

2. The cauldron wash

Right-click a water cauldron while holding Decarboxylated Hemp and the stack comes back as Washed Decarboxylated Hemp, one for one.

• Water is charged by the amount: one level of water rinses up to 22, so a full cauldron (one water bucket, three levels) rinses a whole stack of 64. A cauldron that can't cover the stack rinses what it can and leaves the rest in your hand.
• It costs nothing in strength. Rinsing takes out the grassy taste; the part that matters does not come out in water.
• It is optional, but it decides how good your butter can be. Only a batch at least 60% washed can reach Clean, and only an all-washed one can reach Perfect; washed hemp also reaches Standard sooner. See Strength and quality.
• It is done by hand. Hoppers cannot feed a cauldron, just as vanilla keeps washing banners and leather by hand.
• Scorched Hemp cannot be washed.
• Your first rinse earns Rinse Cycle.

The same cauldron rets stems

Right-click a water cauldron with Hemp Stem and it comes back as Retted Hemp Stem, one for one — 16 stems per level of water, 48 for a full cauldron. Retting makes no fibre by itself; what it buys is the yield afterwards. A retted stem breaks into 6 Hemp Fiber in the crafting grid, where a dry stem gives 4, and into 8 in the Hemp Press (new in 2.1). The whole cloth chain is on Hemp Materials.

3. Infuser

The Infuser is a hempcrete tub around a cauldron. Heat goes underneath, milk is poured in, and the hemp dissolves into it over a slow simmer.

H H H
H C H
H H H

H = Block of Hempcrete · C = Cauldron → Infuser

Cheap next to the oven: eight Block of Hempcrete (Block of Hempcrete Powder that has set in water) come to 36 Hemp Stem. The spout faces you as you place the tub, and that is where finished butter pours out — so stand where the chest is going to be. Mine it with a pickaxe.

Heat comes from below

There is no fuel slot. The Infuser simmers only while the block directly underneath it is hot:

Underneath	Heats it?
Campfire or Soul Campfire	Yes, for as long as it is lit — and it never burns out. The easy choice.
Furnace, Smoker or Blast Furnace	Only while it is busy burning something.
Decarboxylator	Only while its fire is lit.
Magma Block, lava (still or flowing) or a Lava Cauldron	Always.
A modded heater	Only if a mod or datapack adds it to #hempdustry:heat_sources (a modded campfire in #minecraft:campfires counts already).

Losing the heat pauses the batch; nothing is lost. Light the fire again and it carries on where it stopped. The tub gives off no light of its own — any glow is the fire. And like any machine, a batch only simmers while its chunk is loaded: wander far away and it waits for you.

Pouring the milk

Right-click the tub with a milk bucket: it fills, and you get the empty bucket back.

• Any milk works: cow's milk, a Bucket of Hemp Milk, or another mod's milk in #c:buckets/milk.
• One bucket makes one batch, and one batch makes one cannabutter. A full tub takes no more; right-clicking it with milk (or with anything else, or an empty hand) just opens its screen.
• A dispenser facing the tub pours cow's milk or hemp milk and keeps the empty bucket; if the tub is already full it keeps the milk. (Another mod's milk pours by hand only.)

Adding the hemp

The two hemp slots are interchangeable: either one takes Decarboxylated Hemp, Washed Decarboxylated Hemp or Scorched Hemp. There are two so that you can mix kinds, not so that each kind has a home.

• A batch holds up to 24. Hemp dissolves one item every 12.5 seconds, and only during the first five minutes of the simmer. After that the batch is locked: nothing more goes in, and whatever is left in the slots waits for the next batch.
• So load everything at the start. Late hemp cannot catch up: hemp added halfway through those five minutes only has time for 12 more.
• The tub takes scorched first, then unwashed, then washed. A stray unwashed item sitting in a slot goes in before your washed stack does, so clear the slots before a top-grade batch.
• A tub with milk and heat but no hemp simply waits. A batch whose slots run dry keeps simmering what it already has.

Strength and quality

Every batch carries two separate things, and the butter keeps both.

Strength is how much hemp went in. Decarboxylated Hemp counts 1 whether washed or not, and Scorched Hemp counts a quarter. The butter's tooltip calls it Dose, from 1 to 24; what your food cares about is the tier:

Dose	1–6	7–12	13–18	19–24
Tier	I	II	III	IV

Quality is how patient and how well prepared you were. Four grades, lowest to highest: Rough, Standard, Clean and Perfect. The grade comes from two dials, each worth up to 100, added together:

• patience — 0 at 5:00, the earliest the butter can be taken, rising to 100 at 15:00;
• prep — the share of the batch that was washed, minus the share that was scorched (so all plain Decarboxylated Hemp is 0, all washed is 100, all scorched is −100).

Patience + prep	Grade
under 100	Rough
100 or more	Standard
160 or more	Clean
a full fifteen minutes and every item washed	Perfect

Perfect is not a score: it needs both dials full. So patience alone (all unwashed, the whole fifteen minutes) gets you Standard, and so does prep alone (all washed, taken at 5:00); Clean needs both, and at least 60% washed; Perfect needs everything washed and the full simmer. When each grade arrives, at the default timings:

Washed share of the batch	Standard from	Clean from	Perfect at	The best it can be
none	15:00	—	—	Standard
half	10:00	—	—	Standard
60%	9:00	15:00	—	Clean
90%	6:00	12:00	—	Clean
all of it	5:00	11:00	15:00	Perfect

Times count simmering only, from the moment milk, hemp and heat are all there; a pause stops the clock. From 5:00 until the first time in its row, a batch reads Rough.

Tip: In a hurry? All-washed hemp is Standard already at 5:00 — the grade plain hemp needs the full fifteen minutes for.

Note: The washed share is rounded down, so 23 washed and 1 unwashed counts as 95%, not 100%. That batch tops out at Clean, which it reaches at 11:30, and then it is done. Three and a half minutes sooner is a fair trade if you want it — but it will never be Perfect.

Strength and quality never affect each other: a Dose 3 butter can be Perfect, and a Dose 24 one Rough. In the food, strength decides how hard it hits, and quality when it hits and how long it lasts — see Edibles.

Reading the tub

The screen has no numbers, but it tells you everything:

• The pot on the left fills white when there is milk in the tub.
• The flame under the bar means the block underneath is giving heat. It is not a fuel gauge.
• The bar fills as this batch works towards the best grade it can reach. The dark notch marks 5:00, when butter first appears; the bright mark shows when the grade next goes up. When the bar reaches its end the batch is as good as it will get, and the bright mark is gone.
• The big slot stays empty until 5:00, then shows the butter you would get right now, upgrading in place as the grade climbs.

In the world: you can see the milk in the tub, and while — and only while — a batch is actually cooking it bubbles, steams and simmers out loud (subtitle: Butter simmers). Milk in the tub but no bubbles means it is finished, or it has lost its heat or its hemp: open it, and a full bar means done, no flame means no heat.

Taking the butter

• By hand: from 5:00 on, take the butter out of the big slot whenever you like. Taking it ends the batch — milk and hemp are spent, the tub empties, and you get the grade it showed at that moment. The first one you collect earns Butter Late Than Never.
• By the spout: leave it, and once the batch reaches the best grade it can reach, the spout pours the butter into whatever stands in front of it: a chest, barrel or hopper, a minecart with a chest or hopper, or modded storage and pipes. With nothing there it keeps the butter until you collect it.

The spout pours at the batch's best grade, not at a fixed time: a half-washed batch is poured at 10:00, because waiting longer would not improve it. Automation never hands over a worse grade than patience would have.

Comparators

A comparator against the Infuser reads the batch's progress, not how full it is:

Signal	Means
0	no batch running — empty, or just collected
1 – 13	simmering, climbing over the fifteen minutes
15	at its best grade: done

14 never shows, so a nearly finished batch can never be mistaken for a finished one.

Automating it

Hoppers into the top or sides fill the hemp slots (never from underneath — that is where the heat goes). A dispenser pours the milk, and a comparator reading 0 after a collection tells it when. The spout empties the tub. A stack of hemp left in the slots feeds batch after batch, up to 24 at a time.

Breaking it

Breaking a running Infuser gives its batch back: the hemp still in the slots and the hemp already dissolved, as items. The milk is not returned — its bucket came back when you poured it — and butter waiting in the output slot is not dropped either; you get its hemp back instead. Use a pickaxe, or the tub itself is lost.

Naming it

New in 2.1. An Infuser renamed in an anvil shows the name on its screen and drops still named.

Settings: infuser.minTimeTicks (default 6000, five minutes) and infuser.fullTimeTicks (default 18000, fifteen minutes) in config/hempdustry.json, in ticks, up to 32000. A batch still holds 24; hemp dissolves at the minimum divided by 24, so a shorter minimum also dissolves it faster. /hempdustry reload applies a change, even to a batch already running. See Configuration.

Scorched Hemp

New in 2.1.

Scorched Hemp is what a plain furnace makes of hemp. Smelt a Hemp Leaf, any strain's buds or a Schwag in a Furnace and each comes out as one Scorched Hemp, in 10 seconds (a smoker or a campfire won't do it). A Redstone Vaporizer also hands one back from a finished bowl of buds — see Smoking Gear. Your first earns Well Done.

It is heat gone too far: still activated, but much of it burnt off. That makes it butter before the Decarboxylator — a furnace and an Infuser are all you need — at a price:

• Four count as one. Each Scorched Hemp adds a quarter to the dose, rounded up (one on its own still makes Dose 1). A full batch of 24 is Dose 6: tier I, the weakest butter, however long it simmers.
• Every piece drags the grade down. It counts against the prep dial, so an all-scorched batch is Rough however long it simmers, and half washed, half scorched is no better than plain hemp.
• It cannot be washed, and it never goes into the Decarboxylator or a Bucket of Bhang.
• It wastes buds. In the oven a bud makes 4 Decarboxylated Hemp; in a furnace it makes one Scorched Hemp worth a quarter — a sixteenth as much. Scorch your leaves.

A full batch of 24	Dose	Tier	Best grade
Washed Decarboxylated Hemp	24	IV	Perfect
Decarboxylated Hemp	24	IV	Standard
12 washed + 12 scorched	15	III	Standard
Scorched Hemp	6	I	Rough

Scorched Hemp also composts, and it will vape one last time — Smoking has what that does.

4. Cannabutter

Cannabutter is the end of the chain and an ingredient, not a food: you cannot eat it on its own. Its tooltip shows the two things the Infuser decided:

• the grade, in colour — Rough in grey, Standard in white, Clean in aqua, Perfect in light purple;
• Dose: 1–24, the strength. Only its tier (I–IV, table above) matters to the food.

Butter stacks only with butter of the same dose and grade. When you cook with it, the edible takes a potency tier from the butter's dose (plus or minus a step, depending on the dish) and copies its grade unchanged. It goes into:

	Edible	Per butter
	Cannabutter Toast	3
	Space Cookie	8
	Space Brownie	4
	Space Cake	1 cake, 7 slices
	Dawamesk	1

The sixth edible, the Bucket of Bhang, skips the butter and is made straight from Decarboxylated Hemp. Recipes, tiers and what each one does: Edibles.

Getting a particular butter for testing

The creative inventory's search tab lists cannabutter at every tier and grade. With commands:

/give @s hempdustry:cannabutter[hempdustry:strength=24,hempdustry:quality="perfect"]

quality is one of rough, standard, clean, perfect. On Minecraft 1.16.5 and 1.18.2 the same values go in the item's tag instead:

/give @s hempdustry:cannabutter{"hempdustry:strength":24,"hempdustry:quality":"perfect"}

For pack makers

• hempdustry:decarboxylating is a recipe type, one file per input (ingredient, result): a datapack adds an input or changes a yield. There is no cook time per recipe; the oven's speed is world.machineSpeedMultiplier.
• hempdustry:infusing is one recipe for the whole tub: container (the milk), hemp, washed_hemp, an optional scorched_hemp, and result. Strength and quality are measured by the tub and stamped on the result; they are not part of the recipe. If a pack ships more than one, the first one found is used.
• #hempdustry:heat_sources (blocks) is what heats the Infuser and the Hemp Press; a block with a lit state has to be lit. #hempdustry:milk_buckets (items) is what the tub takes as milk, and includes #c:buckets/milk.
• The cauldron's rinse and retting are not recipes, and no datapack changes them.

Details: Datapacks · Tags · Configuration.

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See also: Edibles · Hemp Food · Growing Hemp · Hemp Materials