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🔥 Heat Processing

Water Bath Canning

Process high-acid foods in boiling water to create a vacuum seal and destroy spoilage organisms.

📋 Step-by-step
1

Use only tested recipes from reliable sources — do not improvise ratios.

2

Sterilize jars and keep lids warm until filling.

3

Fill jars leaving proper headspace as specified in the recipe.

4

Remove air bubbles, wipe rims clean, and apply lids fingertip-tight.

5

Process jars fully submerged in boiling water for the time specified in the recipe.

6

Cool undisturbed for 12–24 hours; check that lids are concave and do not flex when pressed.

💡 Helpful tips
  • Only use this method for high-acid foods (pH 4.6 or below).
  • Adjust processing time for altitude above 1,000 feet.
  • Store jars without the screw bands to spot seal failures early.
⚠️ Safety note
Never water-bath can low-acid vegetables, meats, or dairy — use pressure canning instead. Botulism risk is real with improper canning.
🥕 Best for
Jams & jellies Pickles Tomato sauce (with added acid) Fruit preserves Salsas (tested recipes only)
⏳ Typical shelf life

12–18 months in a cool, dark pantry when properly sealed

🔗 More methods
⚗️ Pressure Canning