It has not gone off. Grain is the harder fats in the tin recrystallising after the balm got warm and then cooled slowly. It is a texture problem, not a quality one, and it melts out on your skin the same as a smooth tin does.
What grain actually is
Beef tallow is not one fat. It is a mixture, mostly stearic, palmitic and oleic acids, and they set at different temperatures. Melt a batch and cool it fast and they all set together into crystals too small to feel. That is what smooth is. Cool it slowly and the higher melting fats have time to find each other first and build much larger crystals while the rest is still liquid. Those larger crystals are what your fingertip reads as sand.
Shea butter is notorious for doing exactly this, and there is shea in the tin too, so it has two ingredients with the habit. What is in it.
What causes it after you have bought it
Temperature swings. A tin in a car, on a windowsill, or in a bathroom that goes from cold to steaming twice a day. It does not need to melt fully. Warm enough to soften, then a slow cool, repeated a few times, will do it.
Summer shipping is the common one. A tin that spent an afternoon in a hot delivery van and then cooled overnight on a porch has had precisely the treatment that causes grain. More on heat.
Is it still good
Yes. Nothing has spoiled and nothing has separated. There is no water in the tin, so there is nothing growing in it, and grain is not how rancidity shows up anyway. Rancid smells different, sharp and faintly like crayons, and you would notice. How long it keeps.
Fixing a grainy tin
- Stand the open tin in hot water. An inch of water in a mug is plenty. Keep the water out of the balm.
- Take it all the way to clear liquid. This is the step people undercook. If any lumps remain, those are the exact crystals you are trying to destroy, and they will seed the whole tin again as it sets.
- Cool it fast. Straight into the fridge for twenty minutes, undisturbed and level. Fast is the entire point.
- Let it come back to room temperature before using it.
Do not microwave it. It heats unevenly, which leaves cold lumps in a boiling pool, and the tin is metal.
Keeping it from coming back
Store it somewhere cool and, more importantly, somewhere the temperature is steady. A drawer beats a windowsill. A steady 75 degrees is kinder to it than a daily swing between 60 and 90.
Made by hand in small batches in Wakarusa, Indiana. Seven ingredients, and 5% of every sale goes to FreedomSystem, which connects veterans through authentic camaraderie and meaningful programs.
