Is this for you at all
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Why the making looks easy
Roast, grind, fill, close. There is no fermentation to wait for, no filed thermal process to establish, no acid to measure and no window to hit. A batch can be made and jarred in an afternoon, and the product tastes noticeably better than what most people buy. That combination is why so many makers start here.
Why the safety case is the hard part
A nut butter is a low-moisture, high-fat food. Nothing grows in it, which sounds reassuring and is only half the story: anything that was in it when it was jarred survives there, and the dryness and the fat together make that organism much harder to kill than it would be in a wet food. The control has to happen before the grinder, and it has to be a real control rather than a habit.
Which means your supplier matters more than your recipe
Most of what determines whether your product is safe was decided by whoever roasted the nuts, or by you at the roast if you do it. If you buy pre-roasted nuts, you are buying somebody else’s kill step, and you need to know what it was rather than assume one happened.
Who this suits
Somebody who is comfortable keeping records, asking suppliers awkward questions and holding a documented procedure rather than a feel for it. The craft rewards that temperament more than it rewards palate, which is the opposite of how it looks from outside.
Who it does not
Somebody looking for a product they can make at home and sell at a market next weekend. In most states this is not a cottage food product, and the reason is the one above rather than anything arbitrary.