Wash every canning jar before use, keep it hot, and let the tested processing time determine whether it also needs pre-sterilizing. Empty-jar sterilization is unnecessary when a boiling-water recipe processes filled jars for 10 minutes or longer at the applicable elevation-adjusted time. Processes shorter than 10 minutes require sterile empty jars.
Start with clean, sound, hot jars
Wash jars before every use in hot water with detergent, then rinse thoroughly. A dishwasher is acceptable; detergent residue can affect the food’s flavor and color. Inspect each jar during washing and reject any with cracks, chips or other defects.
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Keep washed jars hot until filling—for example, in the closed dishwasher after its cycle or submerged in hot water. Washing and preheating reduce contamination and thermal-shock risk, but neither step sterilizes a jar.
When pre-sterilizing is required
| Situation | What to do |
|---|---|
| Tested boiling-water process is 10 minutes or longer at the applicable elevation-adjusted time | Wash and rinse jars, then keep them hot. Pre-sterilizing empty jars is unnecessary. |
| Tested boiling-water process is under 10 minutes | Wash, rinse and sterilize the empty jars before filling. |
| Jar is cracked, chipped or otherwise damaged | Do not use it for home canning. |
| Jar is a commercial container without a mouth designed for two-piece canning lids | Do not use it for home canning; choose a Mason-type jar made for the purpose. |
The National Center for Home Food Preservation (NCHFP), adapting the USDA Complete Guide to Home Canning revised in 2015, states that pre-sterilizing is unnecessary for fruits, tomatoes, and pickled or fermented foods processed in boiling water for 10 minutes or longer. NCHFP also notes that jars do not need pre-sterilization when food is processed in a pressure canner.
#1 Best Overall
- Included bands and lids create an airtight seal for up to a year of preserving
- Regular mouth design is great for jams, jellies, and other pourable liquids
- Completely BPA-free construction
- Freezer and refrigerator safe for long-term food storage
- Dishwasher safe for easy cleanup
How to sterilize empty jars
- Place washed jars upright on a canner rack.
- Fill the jars and the canner with hot, not boiling, water until water is at least 1 inch above the jar tops.
- Bring the water to a boil and boil for 10 minutes at elevations below 1,000 feet.
- At higher elevations, add 1 minute to the sterilizing time for each additional 1,000 feet.
- Remove and drain jars one at a time with a jar lifter, keeping them hot until filling. You may retain the sterilizing water for processing the filled jars.
This schedule sterilizes the empty container only. It does not replace the food’s tested processing time, jar size, pack style or elevation adjustment.
Load and process the filled jars safely
Use the rack in a boiling-water canner and a jar lifter that grips below the jar neck. Keep jars upright during loading and removal. NCHFP’s general procedure preheats canner water to 140°F for raw-packed foods and 180°F for hot-packed foods. After loading, adjust the water so it covers the jar tops by 1 to 2 inches, then maintain a vigorous boil for the recipe’s complete processing time.
Rank #2
- Food Grade Glass: The mason jars 16 oz with lids are made of high-quality food grade glass, BPA-free and lead-free, durable and sturdy for daily use. The transparent wall allows you to clearly distinguish what is inside. Note: The jars are safe for dishwasher and microwave but without the lid. To freeze, fill up to 12 oz.
- Tight Seal & Leakproof: The silver split-type lid of canning jars consists of a screw band and a flat metal disc with a silicone sealing ring on the rim, which can tightly seal the jar mouth and prevent air and excessive moisture in. No leakage, No spill, and keep fresh for longer!
- Use & Clean Easily: These pint canning jars with a 2.59" diameter regular mouth are easy to fill or empty drinks, fruits, veggies, herbs, sauces and spices. Dishware safe makes them have no trouble cleaning up, and It's also convenient to clean all corners of the jars by hand with our bonus sponge brush.
- Multipurpose Mason Jars: They are the perfect containers for Canning sauce, jam, honey, overnight oats, soup and drinks, Pickling vegetables, fruit and salads, Storing spices, herbs, snacks, dry goods and sewing items. Also great for vases, homemade candles or DIY decor. Idea as wedding favors, shower favors or other homemade gifts.
- Set Includes: The package comes with 15 pack 16oz empty glass mason jars, 15 silver screw lids and bands, 24 labels to mark, 1 bundle of string for decor, and 1 sponge brush for easy clean. All of them are securely packaged in a foam barrier to ensure you receive a good one.
Keep jars hot while filling. Placing a hot jar into markedly colder water, or filling a cold jar with hot food, can cause thermal shock and breakage.
Follow the recipe rather than a general rule
Use a current tested recipe and its specified jar size, lid directions, pack method, processing time and elevation adjustment. Do not transfer one food’s process time to another. Some jams and jellies use a five-minute boiling-water schedule at low elevations and therefore call for sterile jars. Increasing or decreasing that schedule casually can affect both safety and gel quality.
Quick Recap
Best Value
- CLEAR GLASS: The timeless clear finish of these canning jars looks elegant and rustic in your cupboards, shelves or refrigerator and allows you to easily identify contents. They're a handy, multi-purpose item for your kitchen, home, office or studio
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- KEEP FRESH: Includes matching regular mouth lids to help seal in freshness and flavor. Ball glass jars are ideal for the storage of of dry foods and snacks such as sugar, beans, peas, rice, oats, flour, pasta, cookies, crackers, and candies
- REGULAR MOUTH: Wide opening (2 ¾-inch diameter) on the glass jar makes it easy to scoop out dry goods. The silver caps make for very elegant closures for many products. The wide mouth allows for easy accessibility to the bottom of the mason jar for easy and thorough cleaning by hand with a wet cloth.
- USE & CARE: Each pack includes 4 pieces crystal-clear glass mason jars with silver lids, 16oz. Made of glass and BPA-free. Dishwasher safe.
Rank #4
- Package Includes：12 Pack wide mouth mason jars 32 oz with airtight lids and band.The side of the jar ends with "24 oz" and the remaining space between the end of the mark scale and the lid is "8 oz"
- Thick Glass：These jars are made of thick glass that is not easy to break, making them an ideal choice for lasting use
- Seals Tight：These 12 premium mason jars 32 oz come with airtight lids that are guaranteed to keep your creations sealed and fresh. Ideal for kitchens, restaurants and more
- MULTI PURPOSE：This 12 pack Mason jars are for anything from canning to fermenting to pickling! Get creative with meal prep, overnight oats, and even use as centerpieces
- Long-Lasting：Get 12 32 oz canning jars in 1 pack for the housewarming present. Look great on any countertop or tabletop,Glass materials ensure maximum satisfaction
Rank #3
- Premium Food-Safe Glass & Durability: Crafted from 100% food-grade glass, these mason jars 16 oz with lids are BPA-free, lead-free, and built for everyday toughness. Enjoy crystal-clear visibility of your canning jars' contents. Safe for refrigerator, microwave (lid off), and dishwasher use. Freeze liquids safely with max 12oz
- Practical Regular Mouth Design: Featuring a versatile 2.59" regular mouth (not wide mouth), these pint canning jars make filling and emptying easy—perfect for whole fruits, veggies, herbs, salads, sauces, and dry snacks. Ideal for organized storage on fridge shelves, countertops, or in compact spaces
- Reliable Airtight & Leakproof Seal: Experience true freshness preservation! The silver split lids (band + disc) with silicone gasket create a 100% airtight and leakproof environment on these 16oz jars with lids. Prevent spills, lock out moisture and air, keeping wet or dry goods fresher longer—essential for successful canning and storage
- Ultimate Multipurpose & Gift-Ready Jars: Perfect for classic canning (pickles, jams, sauces), meal prep (overnight oats, salads), and pantry organization (spices, snacks). Also ideal for craft supplies, sewing notions, charming vases, or homemade candles. Create heartfelt homemade gifts or party favors! Easily personalize these mason jars for weddings, baby showers, holidays, or thoughtful thank-you presents
- Complete Set & Effortless Cleaning: This value-packed kit includes 15 glass jars with lids (15 jars, 15 silver lids & bands), 24 labels for decor, and a handy sponge brush. The pint jars for canning are dishwasher safe, and the included brush ensures easy manual cleaning of every corner
Quick preparation checklist
- Choose home-canning jars in the recipe’s specified size.
- Wash and rinse every jar immediately before use.
- Reject cracks, chips and unsuitable commercial containers.
- Keep clean jars hot until filling.
- Check the tested boiling-water time after applying your elevation adjustment.
- Pre-sterilize when that adjusted process is under 10 minutes.
- Use the canner rack and jar lifter; keep jars upright and covered by the required water depth.
- Follow the lid manufacturer’s current preparation instructions.
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