Step-by-Step Guides

Ball Products

Hot Waterbath Preserving

Step-by-Step Fresh Preserving of High-Acid-Foods

High-acid-foods are easy to preserve, foods containing high amounts of acid are a popular choice for fresh preservers. These foods provide you with the opportunity to prepare and enjoy a wide array of home preserving recipes, from excellent side dishes to delectable desserts. High-acid foods include fruits, fruit juices, jams, jellies and other fruit spreads, salsas, tomatoes with added acid, pickles, relishes, chutneys, sauces, vinegars and condiments.

You Will Need

  • Tested preserving recipe such as one found in the Ball Blue Book® Guide to Preserving or our online recipe list.
  • Hot waterbath preserver or a large, deep saucepot with a lid, and a rack (when preserving high-acid foods such as soft spreads like jams and jellies, fruit juice, fruits, pickles and salsas)
  • Glass preserving jars, lids and bands (always start with new lids).
  • Common kitchen utensils, such as wooden spoon, ladle and funnel.
  • Fresh produce and other quality ingredients

Hot Waterbath Instructions

  1. READ through recipe and instructions.  Assemble equipment and ingredients. Follow guidelines for recipe preparation, jar size, preserving method and processing time.
  2. CHECK jars, lids and bands for proper functioning. Jars with nicks, cracks, uneven rims or sharp edges may prevent sealing or cause jar breakage. The underside of lids should not have scratches or uneven or incomplete sealing compound as this may prevent sealing. Bands should fit on jars. Wash jars, lids and bands in hot, soapy water. Rinse well. Dry bands.
  3. HEAT home preserving jars in hot water, not boiling, until ready for use. Fill a large saucepan or stockpot half-way with water. Place jars in water (filling jars with water from the saucepan will prevent flotation). Bring to a simmer over medium heat. Keep jars hot until ready for use. You may also use a dishwasher to wash and heat jars. Keeping jars hot prevents them from breaking when hot food is added. Leave lids and bands at room temperature for easy handling.  
  4. PREPARE hot waterbath preserver by filling half-full with water and keep water at a simmer while covered with lid until jars are filled and placed in preserver. Be sure your rack in resting on the rim of the preserver or on the bottom, depending on the type of rack you are using. You don’t necessarily need to purchase a hot waterbath preserver if you don’t already have one at home. Most kitchens have pots that can double as boiling water bath preservers. A boiling water bath preserve is simply a large, deep saucepot equipped with a lid and a rack. The pot must be large enough to fully surround and immerse the jars in water by 2.5 - 5 cm and allow for the water to boil rapidly with the lid on. If you don’t have a rack designed for home preserving, use a cake cooling rack or extra bands tied together to cover the bottom of the pot.  
  5. PREPARE tested preserving recipe using fresh produce and other quality ingredients.
  6. REMOVE hot jar from hot water, using a Jar Lifter, emptying water inside jar. Fill jar one at a time with prepared food using a Jar Funnel leaving headspace recommended in recipe (0.65 cm for soft spreads such as jams and jellies and fruit juices; 1.25 cm for fruits, pickles, salsa, sauces, and tomatoes). Remove air bubbles, if stated in recipe, by sliding the Bubble Remover & Headspace Tool or rubber spatula between the jar and food to release trapped air and ensure proper headspace during processing. Repeat around jar 2 to 3 times.
  7. CLEAN mason jar rim and threads of jar using a clean, damp cloth to remove any food residue. Centre lid on jar allowing sealing compound to come in contact with the jar rim.  Apply band and adjust until fit is fingertip tight. Place filled jars in preserver until recipe is used or preserver is full. Lower rack with jars into water. Make sure water covers jars by 2.5 - 5 cm.
  8. PLACE lid on water bath preserver. Bring water to a full rolling boil.  Begin processing time.
  9. PROCESS jars in the boiling water for the processing time indicated in tested preserving recipe, adjusting for altitude (see altitude chart). When processing time is complete, turn off the heat and remove the preserver lid. Allow jars to stand in preserver for 5 minutes to get acclimated to the outside temperature.  
  10. REMOVE jars from preserver and set upright on a towel to prevent jar breakage that can occur from temperature differences. Leave jars undisturbed for 12 to 24 hours. Bands should not be retightened as this may interfere with the sealing process.
  11. CHECK jar lids for seals. Lids should not flex up and down when centre is pressed. Remove bands. Try to lift lids off with your fingertips. If the lid cannot be lifted off, the lid has a good seal. If a lid does not seal within 24 hours, the product can be immediately reprocessed or refrigerated. Clean mason jars and lids. Label and share then store in a cool, dry, dark place up to 1 year.
  12. Don't forget to celebrate what you make on Facebook!

After many years of research, it was determined that preheating Ball® lids is no longer necessary. The sealing compound used for our home preserving lids performs equally well at room temperature as it does pre-heated in simmering water (82C). Simply wash lids in hot, soapy water, dry, and set aside until needed.

NOTE: Instructions on lid, cap, and jar packaging is changed. However, retail stores may stock packaging having either instruction.

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