How To Make Jam the Old Way — Just Fruit, Sugar, and a Lemon (No Box)

Read the label on your store jam — if corn syrup comes before the fruit, that's candy, not jam. And you've been told you can't set your own without a box of pectin. Not true. Amos, an Amish food-keeper from Lancaster County, shows how to make real jam the old way, with nothing but fruit, sugar, and a lemon — no boxed pectin, ever. Every jam sets on three things in balance: pectin, acid, and sugar. Pectin is already in the fruit — high in tart apples, plums, currants, and citrus peel; low in strawberries, peaches, cherries, and blueberries. To set a low-pectin fruit, just add a chopped tart apple or the juice of a lemon or two — that's all the boxed powder is anyway. Keep the sugar near the fruit's weight (it sets AND preserves, so don't slash it). Boil hard in a wide pot, skim the foam, and cook to the set point: 220°F at sea level (subtract about 1°F per 500 feet of elevation), or use the frozen-plate test — a spoonful that wrinkles when you push it is done. Jar it hot with 1/4 inch of headspace, wipe the rims, and water-bath for 10 minutes for the shelf, or just keep it as fridge/freezer jam (must stay cold). Skip the old paraffin wax, and if a jar ever shows mold, throw it out — don't scrape. Comment below: what fruit is ripe and cheap where you are, and did you ever believe you couldn't make jam without a box of pectin?