Water Bath Canning: Your First Steps Into Preservation
Water bath canning is the most accessible home preservation method and the perfect starting point for beginners. With just a large pot, some mason jars, and a few basic tools, you can preserve fruits, pickles, jams, and tomato products that last 12-18 months on the shelf.
How It Works
Submerging sealed jars in boiling water (212 F / 100 C) for a specified time kills yeasts, molds, and most bacteria. The heat also drives air from the jar, creating a vacuum seal as it cools. This is safe only for high-acid foods (pH below 4.6), where the acidity prevents growth of Clostridium botulinum.
What You Can Water Bath Can
- Fruits: Peaches, pears, applesauce, berries, cherries — in syrup, water, or juice
- Jams and jellies: All varieties including marmalade and fruit butter
- Pickles: Cucumber pickles, pickled beets, pickled peppers, relish
- Tomatoes: Sauce, salsa, whole/crushed tomatoes — always with added lemon juice
- Vinegar-based products: Chutneys, vinegar-pickled anything
Step-by-Step Process
Fill your canner with water and begin heating. Wash jars and keep them hot. Prepare your recipe. Fill hot jars using a funnel, leaving the specified headspace. Remove air bubbles with a thin stick. Wipe jar rims clean. Apply lids and bands finger-tight. Lower jars into boiling water. Process for the time specified in your tested recipe. Remove and cool undisturbed for 12-24 hours.
Checking Seals
After cooling, press the center of each lid. Sealed lids are concave and do not flex. Any jar that did not seal should be refrigerated and used within 2 weeks. Properly sealed jars can be stored at room temperature in a cool, dark location.
Log every canning batch in Seedtojar with recipe, jar count, and processing date for a complete preservation record.