There is a page near the front of my grandmother’s ledger that says, in her hand: the big brown crock — do not use. That is all it says. No reason. Not one word of why. She kept that crock her whole life and never used it again.Somebody warned Ruth about that pot, one time, and whoever it was did not explain. So she did the only two correct things available to her. She stopped using it, and she wrote it down, so the knowing would outlive her mouth.This is the rest of that ledger — put in order, checked against what is actually known now, and finished.Fifty-two pages you will actually read, instead of nine hundred you will not. Thirty-six chapters. Nine sections. Three sheets to copy out. A number on nearly every page.Every chapter runs the same four beats: what it was · how it’s done, with the numbers in it · how to tell the sound one from the one that will hurt you · and what it will not do. That third beat is the one almost no old book has, and it is exactly why people got hurt following them.Inside: the four-second test that sorts every crock in your house. Why the bottom rim is the only honest part of any pot. Sauerkraut to the gram. The egg float test, stated properly. Salt pork at one pound of salt to one gallon of water, and the step the frontier skipped that killed men. Cold smoke below ninety degrees and the dangerous middle nobody warns you about. Root cellar zones by crop. The acid rule of canning, and the people who died learning it. Soap from wood-ash lye, and the burn nobody warns you about.Where the old way is right, it says so. Where it is flat wrong, it says that too — with the number either way. There are things in this book that Ruth did every autumn of her life that I tell you plainly not to do.Instant download. Seven-day, every-dollar guarantee — and the book stays on your shelf either way.