A tallow balm that arrives soft, or even melted flat, is still the same balm. Let it firm up at room temperature, or give it an hour in the fridge, and it'll come back with a grainy top at most. Our post on what's normal covers the grain.
I've seen it with a jar that melted in an August mailbox, and it set back up on our kitchen counter. For summer, it's Bare Silk ($34) on the face and Honey Glow ($42) on the body. Both prices are as of October 5, 2026.
Humid air also pulls less water out of skin, so you'll need about half a pea where winter took a whole one.
Why does tallow balm melt in summer?
Tallow holds several fatty acids, which our fatty acids post breaks down, so it softens across a stretch of temperatures before it pours. A 2022 Scientific Reports paper put a number on it. Working with tallow from the fat around cattle ribs, Nam estimated by eye that it melted at about 42 °C, or about 108 °F. Rib fat isn't suet, and our jars carry plant oils too, so take that figure as a ballpark.
A parked car gets hotter than that on a mild day. The temperature inside a car can reach over 115 degrees when the outside temperature is just 70 degrees, says the National Highway Traffic Safety Administration. Rolling the windows down or parking in the shade does little to change the interior temperature, the agency adds. So the car is my yardstick: bring a delivery in soon after it lands, and keep jars out of the car.
Is a melted jar still good?
Yes. Our balms carry no water, which is why there's no preservative system, and microbes need water to grow. A melt adds none. Why there's no water in our balms covers the recipe side, and how long a tallow balm lasts covers the shelf. Keep a soft jar upright with the lid on until it sets. An hour in the fridge is faster.
A cool cupboard away from the stove is a jar's best summer home. Never a windowsill in the sun. The fridge is fine too, as long as you warm a pea between two fingertips before it goes on. Leave the jar home on beach days. The FDA asks people to keep sunscreen containers out of direct sun, wrapped in a towel or in the shade, and sunscreen has to come along. A balm doesn't. A beach bag in the sun is that August mailbox all over again.
How much balm does humid skin need?
Less. The American Academy of Dermatology (AAD) explains it from the winter side: when outdoor temperatures fall, the air holds less moisture, and research shows that can lead to excessively dry skin. Summer runs the other way. Warm, humid air holds more water and pulls less out of your skin, so half a pea, warmed until it turns clear, covers a face. The AAD's moisturizer guide says it's important to switch it up for a different season. In summer, the switch is the amount.
In heat, a thicker layer mostly means more grease on your skin. Sethi and colleagues, in a 2016 review of moisturizers, name the greasy feel as one of the limits of occlusives, the water-repelling layers that block water loss. Put the balm on clean skin after a shower, once you've patted it with a towel. The AAD says moisturizer works better on damp skin, because it traps water in the skin and keeps it from evaporating. Don't press balm over sweat. Rinse or wipe the sweat away, and only then press the balm in.
Spots that rub, inner thighs especially, can take a thin layer before a long walk, on intact skin only. On a humid day, your clothes do more of that work. Our friction and chafing post covers both, and skin that's already rubbed raw waits until it's closed again.
Does the balm go under sunscreen?
Under. Press in a thin layer and let it settle for a few minutes before the sunscreen goes on. A balm isn't a sunscreen. Tallow doesn't screen UV, and our tallow and SPF post explains why it adds nothing to your SPF. Summer is when the FDA's reapply line earns its keep, at least every two hours and more often if you're swimming or sweating.
A fresh sunburn is another matter. The balm stays in the jar until the heat's gone and the skin's whole again, and a dermatologist is the one to ask about the burn itself. Our sunburn post explains why. It's cosmetic care, not a treatment, and your provider's plan comes first.
So it's two jars for summer. Bare Silk Unscented takes the face, with half a pea at night and a thin layer under sunscreen in the morning. Honey Glow takes the body. It's the jar for shins and heels after a day in sandals, with oil-soluble manuka honey extract and cold-pressed oat oil in the tallow.
Start with Bare Silk ($34), five ingredients and sixty days to disagree.
Questions we hear
Does tallow balm melt?
It can. In a 2022 paper, Nam estimated by eye that beef tallow melted at about 42 °C, roughly 108 °F. The National Highway Traffic Safety Administration says the inside of a car can reach over 115 degrees when the outside temperature is just 70. A jar that's melted firms back up at room temperature, or after about an hour in the fridge.
Is tallow balm ruined if it arrives melted?
No. A balm with no water in it gives microbes nothing to grow in, and melting adds no water. Stand the jar upright with the lid on and let it firm at room temperature, or give it an hour in the fridge. The top may come back a little grainy, but the balm underneath hasn't changed.
Can I keep tallow balm in the fridge?
Yes. The fridge is fine in summer, and it's the fastest way to firm up a jar that went soft in the mail. A cold jar is firm, so warm a pea between two fingertips until it turns clear. A cool cupboard works too.
How much tallow balm should I use in humid weather?
About half the winter amount. Humid summer air pulls less water from skin than cold, dry winter air does, so half a pea usually covers a face. Press it onto clean skin after a shower. Skin that's still a little damp takes it best, and sweat should be rinsed or wiped off first.
Go deeper
The beef tallow for skin guide is the long version, covering what a balm does on skin and what it doesn't. If your face shines by noon, tallow on oily skin has a two-week test. Tallow and zinc sunscreen walks through the morning order. Flying with a tallow balm covers the 3-1-1 rule and the sunscreen question for the jar in your carry-on. Bug balms vs DEET covers what the CDC says actually works on ticks and mosquitoes, and why we make no bug balm. Pool chlorine and skin covers the rinse, the thin layer and the itch kids get after a swim.
Sources
- Nam KH (2022). Beef tallow injection matrix for serial crystallography, published January 13, 2022. Scientific Reports 12, 694.
- Sethi A, Kaur T, Malhotra SK, Gambhir ML (2016). Moisturizers: the slippery road. Indian Journal of Dermatology, volume 61, issue 3, pages 279 to 287.
- National Highway Traffic Safety Administration (n.d.). You can help prevent hot car deaths, an undated page, read October 6, 2026. NHTSA.
- American Academy of Dermatology Association (n.d.). Dry skin: who gets and causes, an undated page, read October 6, 2026. AAD.
- American Academy of Dermatology Association (2022). How to pick the right moisturizer for your skin, last updated January 25, 2022. AAD.
- US Food and Drug Administration (2026). Sunscreen: how to help protect your skin from the sun, content current as of September 10, 2026. FDA.
Aspen is the co-founder of Craft Tallow and runs the wear tests: every recipe goes on her skin and the family's for weeks before it gets a label. Questions? Reply to any email from us; it lands with one of us.