Pour temperatures for balms: the melt window, the pour window and what each end costs you

Melt at 70-80 C, pour tubes at 65-72 C and tins at 60-68 C. What too hot and too cool each do, the shea and cocoa butter cases, and why stirring beats the freezer.

Balm making has exactly four temperatures that matter: the melt hold, the point where heat-sensitive materials go in, the pour, and the rate at which the filled container cools. Almost every defect that gets posted as a mystery is one of those four being wrong. This page gives the windows, the reason each boundary exists, and the specific failure you get from crossing it in either direction.

The four temperatures, in order

A balm is a suspension of fat crystals in liquid oil, so temperature control is really control over how many crystals form, how big they get and in which form. The melt hold decides whether you started from a clean slate. The pour decides how much shrinkage happens after the surface has set. The cooling rate decides crystal size. The addition point decides whether the things you paid most for are still in the product.

Natural fats and waxes melt over ranges, not at points, so every number below is a window rather than a target. Beeswax runs 61 to 65 C, candelilla 68 to 73 C, carnauba 82 to 86 C, and shea and cocoa butter both finish well below all of them. The highest-melting structurant in your formula sets the floor of the pour window, because once that material starts crystallising the melt stops being a liquid and starts being a slurry.

The melt: 70 to 80 C, and why 85 C is a ceiling not a target

Hold the full oil and wax phase at 70 to 80 C until it is completely clear: no flecks, no haze, no soft lumps on the spatula. That means 15 to 30 minutes at temperature for anything containing shea, and much less for a simple beeswax and oil salve.

The 85 C ceiling exists because nothing useful happens above it and three unhelpful things do. Beeswax darkens. Tocopherol degrades, which is exactly backwards since you added it to protect the oils, as covered on vitamin E and antioxidants. And the volatile top of any aromatic material leaves. The only formulas that want the top of the window are those containing carnauba at 82 to 86 C, where the bath water has to be genuinely boiling.

Where the heat-sensitive phase goes

Take the vessel out of the bath, stir until the probe reads below 60 C, then add flavour, tocopherol and any essential oils. Below 50 C is better for the most volatile materials, but a thin melt cools fast and you can overshoot into the slurry zone while fetching the bottle. Weigh that phase out before you start the melt so the addition takes ten seconds. If the temperature drops below the pour window, return the vessel to the bath briefly rather than reheating hard.

What pouring too hot does

Molten balm is less dense than set balm. A finished balm works out near 0.92 g/mL and the melt is lower still, so the contents of every container shrink as they solidify. That contraction is unavoidable. What you control is when it happens relative to the surface skinning over.

Pour with a lot of superheat and the surface sets first while a large volume of still-hot liquid sits underneath. As that liquid contracts, it pulls away from the set skin and you get the classic sequence: a shallow dip, then a deeper crater, then a hollow tunnel running down the centre of the stick, then a cracked or split top when the skin cannot stretch to follow. In a tin the same physics produces a sunken centre with a raised rim. The mechanism and the fixes are set out on tunnelling and dips.

Two further costs. Volatile loss continues in the open container, so pouring flavoured balm at 78 C rather than 68 C means ten more degrees of evaporation across a hot surface. And very hot balm softens the polypropylene tube barrel and can distort the bore around the elevator disc, which is why an over-hot batch sometimes twists stiffly even though the balm itself is fine.

What pouring too cool does

Below the window the melt is no longer a true liquid. The highest-melting structurant has begun to crystallise, and you are pouring a suspension. That gives four distinct faults.

• Lumps. Partially set wax passes through the spout as soft grains and stays visible in the finished stick as pale specks.
• Poor fill. A thickening melt will not reach the bottom of a tube around the elevator disc, or the corners of a tin, leaving voids that only appear when the user winds the stick down or scrapes the tin out.
• Rough or matt surfaces. A liquid pour levels itself and sets glossy. A slurry pour records its own flow lines.
• A false skin. Melt hitting a cold container wall sets on contact before the rest arrives, so the product is built in layers with weak boundaries between them. Those boundaries later show as a scaly surface, as oil weeping at the interface, or as a stick that shears off in a disc when used. The related sweating mechanism is covered on balm sweating.

Cold containers make all of this worse. In a cool workshop, standing tubes and tins on a warm tray at 30 to 35 C before filling is more effective than raising the pour temperature, because it removes the cold wall without adding superheat to the bulk.

Full pour temperature table

The shea case: melt high, cool fast, and be honest about the number

Shea is the reason the melt hold matters. Its stearin fraction is rich in the triglyceride StOSt, and grain is beta-form StOSt crystal aggregates that segregated from the liquid olein and then coarsened over days. The common phrasing "the stearic acid separates out" is chemically wrong: the fatty acids stay esterified in triglycerides throughout.

The temperature that actually matters is the clear point of beta StOSt at 41 to 43 C. That is the threshold above which surviving seed crystals are destroyed. Melting shea "until it looks liquid", which happens around its 32 C slip point and is clearly fluid by 40 C, therefore leaves crystal memory intact, and those survivors template the coarse beta crystals you will feel with a fingertip a week later. The folklore is right in direction.

The folklore is not sourced in its specifics. The widely repeated "heat shea to 175 F" has no traceable source for shea. It does coincide with a common laboratory convention, since some lipid groups melt cocoa butter at 80 C for 30 minutes to erase crystal memory while others use 55 C for 20 minutes for the same purpose. Theory says there is no universal threshold at all: memory erasure is a time and temperature trade-off, so hotter needs less time and cooler needs more. Trebalm's position is to hold well above 45 C, treat 70 to 80 C for 20 to 30 minutes as a generous margin borrowed from lipid labs rather than a measured constant for shea, and to note that nobody has published what that heat does to shea's unsaponifiables, which run around 5% in crude butter.

Then cool fast: a stirred cold water bath, or about 20 minutes in the fridge. One more lever is almost never mentioned, and it is the choice of liquid oil. Shea stearin reached the beta form in about two days in rapeseed oil but five to seven days in octyldodecanol, where the crystals were fewer, much larger and up to ten times lower in firmness. Polar emollients dissolve shea better and slow crystallisation, which raises grain risk rather than lowering it. Mechanism on grainy shea butter, material on shea butter.

The cocoa butter case, and why you cannot temper shea to form V

Cocoa butter is polymorphic in a way shea is not. It has six conventionally named forms with different packing and different melting points, and chocolate work depends on landing in form V.

Those classic six are a convention, and worth publishing as such. Forms III and IV overlap heavily in the modern ranges, some authors treat V and VI as subphases of beta rather than separate forms, and "form V melts at 33.8 C" is a midpoint rather than something you could reproduce on an arbitrary sample. More on the material is on cocoa butter.

Chocolate tempering, as the literature describes it, means melting fully past 50 C, often 60 C, precrystallising under controlled shear while cooling to 27 to 29 C, then reheating to 31 to 32 C. The shear step is what cosmetic "tempering" advice almost always omits, and it is how the seed crystals get distributed. Tempering also deliberately carries 2 to 5% surviving form V seed, so it is a seeding process.

You cannot temper shea to form V. Forms I to VI are cocoa butter nomenclature. Shea's stable end state is plain beta and there is no metastable form to hold it in. The blog protocol for shea destroys all crystal memory and then shock cools, which is a nucleation burst, not seeding. Same vocabulary, opposite physics. In a balm the distinction matters less than it sounds, because cocoa butter is typically 10 to 15% of a mixed system diluted in liquid oils rather than a pure fat being asked to snap and shine. You are not chasing gloss, you are chasing many small crystals.

Cooling rate: why stirring beats the freezer

Fast cooling produces many nuclei and therefore many small crystals, which is what a smooth balm is. Slow cooling produces few, so the highest-melting fraction crystallises first and largely alone, segregating from the rest. That is the first step in the chain that ends in grain.

The intuitive fix is the freezer, and it is the wrong lever for two reasons. First, cooling below about 18 C favours the alpha form, which is unstable: it converts through beta prime toward beta over the following days regardless of how cold it got initially. Freezer shock buys small initial crystals, not permanent stability. Shea stearin held at 20 C is mostly beta prime after a day and fully beta after a week. Second, very fast cooling adds thermal contraction cracks, and a frozen container collects condensation when it returns to room temperature, which is water arriving in an anhydrous product.

Stirring during cooling is the better-evidenced lever. Agitation multiplies nucleation sites and keeps the melt homogeneous while it passes through the crystallisation range, which is the same principle as the shear step in chocolate tempering. For anything you pour, that means stirring the jug continuously as it comes down from the melt hold to the pour window, rather than letting it sit still and skin. Once it is in the container you can no longer stir, so what happens between 80 C and the pour is where the crystal population is actually decided.

Reading a batch backwards

A bad batch usually names its own temperature history. Deep centre dips, tunnels or split tops: poured too hot. Lumps, flow lines or an unfilled tube base: poured too cool, or into cold containers. Sandy texture appearing days later: melt hold too low or too short, or cooling too slow. Cracks radiating from the centre with an otherwise good fill: cooled too aggressively, diagnosed on cracked and crumbly balm. Flavour strong in the jug and absent in the tube: added above 60 C.

None of that requires a new formula. Temperature faults look like formulation faults, which is why so many people reformulate a perfectly good recipe. Fix the four temperatures first, with a probe rather than a surface reading (see equipment for why an infrared gun misreads a stirred melt), then judge the formula. When the numbers are under control, the filling technique that turns a good melt into a good stick is on filling lip balm tubes, and the base formula they apply to is on how to make lip balm.

Reviewed and updated 6 September 2026. Spotted an error? Tell us and we will fix and log it.