Should You Render Your Own Tallow or Just Buy It? The Honest Math
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Let's get the awkward part out of the way: rendering your own tallow is cheaper than buying ours. Roughly half the price per pound, if you buy decent suet.
Whether that makes it worth doing is a different question, and it's the one that matters. Fair warning, we sell tallow, so weigh what follows accordingly. We'd still rather you make the right call than a purchase you regret.
What rendering actually takes
On paper it's simple: melt fat slowly, strain out everything that isn't fat. In practice, it goes like this.
You start with suet, the hard, crumbly white fat from around the kidneys. It's the good stuff for skincare because it renders cleaner and milder than fat from other parts of the animal. It usually shows up frozen, along with bits of meat, blood, and membrane you have to trim off by hand. Expect to lose about a fifth of it before the pot is even warm.
Next you chop it small (a food processor saves your wrists), and it goes into a slow cooker or heavy pot on low for hours. Some people add a splash of water so the fat doesn't scorch. That's wet rendering. Others go dry, which is faster but easier to burn, and burnt tallow is dark and smells like it.
Then you strain it through cheesecloth (which loves to clog) and let it set. If you're picky about purity, you melt it down and do the whole thing again.
If it went well, you end up with jars of pale, clean tallow. You also end up with a film of beef fat on the stovetop, a pot that needs serious degreasing, and a kitchen that smells like a roast for a day or two. It isn't a bad smell. There's just a lot of it, and it gets into everything.
The napkin math
Say you want 3 pounds of finished tallow, which is what goes into up to twenty 4 oz jars of balm.
Suet gives back roughly half its weight once it's trimmed and rendered, so you'd buy about 6 pounds. Grass-fed suet from a farm often runs around $4 to $5 a pound, which puts you at $25 to $30. Our 3 pounds of cosmetic-grade tallow is $49.
So rendering saves you about twenty dollars on that batch.
Now add the time. Figure a couple of hours of real work (trimming, chopping, straining, scrubbing the pot), spread across most of a day because the pot needs hours on low heat. Twenty dollars for that works out to roughly ten bucks an hour, give or take. That's plenty if you enjoy it and not much if you don't.
Render it yourself
Buy cosmetic-grade
Cost for 3 lb
About $25 to $30
$49
Your time
A couple hours of work, most of a day start to finish
None
Smell
Strong beef, lingers a day or two
Mild to none
Consistency
Varies with the suet and your method
Same process every time
If you can find suet at a local butcher for a dollar or two a pound, the gap gets wider. It's usually conventional suet, though, so you're comparing a different product.
What the math leaves out
The napkin math treats a pound of tallow as a pound of tallow. It isn't.
The smell follows you. Home-rendered tallow, especially dry-rendered, tends to keep a beefy note. In a skillet or a bar of soap, nobody cares. In a face balm, you'll smell it every time you open the jar, and no amount of lavender fully covers it. Cosmetic-grade tallow is wet rendered and processed to take the odor out. Ours is wet rendered three times and deodorized, which is exactly the part that's hard to replicate on a stovetop.
Bad batches are quiet. Scorched tallow, tallow with leftover water in it, tallow that's already heading toward rancid: you usually find out after you've made the balm and it's sat in a jar for a few weeks. Moisture is the sneaky one because you can't see it, and it's what lets mold and spoilage in. Labs test for it. Most kitchens can't, so at home you're going by eye and nose. We break down what else separates cosmetic-grade from food-grade in this guide.
Consistency matters more than you'd think if you sell. Nobody remembers that your first batch was gorgeous. They notice that their second order smelled different.
So which one?
Render your own if you've got a rancher you trust or a beef share in the freezer. Do it if you're making soap and cooking with the stuff too, where a little beefiness doesn't matter. Do it if you like the whole slow-Saturday-in-the-kitchen thing, or if you're making a lot and every dollar per pound counts.
Buy if it's your first batch. Learn the recipe with tallow you know is clean, so when something goes wrong you know it was technique and not the fat. Buy if it's going on faces, if you plan to sell it, or if you'd rather spend Saturday making balm than making tallow.
Or do both, in order. Buy first, render later. Once you know what you want your balm to feel and smell like, render a small batch of your own and make one jar with each. Give them a week, then compare color, smell, and feel. That test will tell you more than any blog post can, this one included.
Short version: Rendering saves about twenty dollars on a 3-pound batch and costs you a day, a smell, and the risk of a bad batch. Buying costs more and skips all three. Both are fair choices, as long as you're not deciding on price per pound alone.
If you'd rather go the buying route, our 3 lb of cosmetic-grade tallow is available on its own, or you can get it in the DIY kit with everything else you need for up to twenty 4 oz jars.
