How to date canning jars

In 1858, a 26-year-old Mason patented threaded screw-top jars "such as are intended to be air and water-tight.". The earliest mason jars were made from transparent aqua glass, and are often ...

Same Day Delivery Eligible. Add to Cart. Compare. New! Anchor Hocking 1/2 Pint Regular Mouth Home Canning Jar Tray (12 Jars With Metal Lids and Bands Per Tray) SKU: 236235499. 5 (1) $10.99. Standard Delivery.First, make sure that the jars are clean and dry. Next, remove the lid from each jar and check the sealing surface for any cracks or chips. If everything looks good, replace the lids and screw on the rings tightly. Then, place the jars in a pot of boiling water and boil for 10 minutes.Here in Lancaster County, old canning jars are pretty easy to come by! Lancaster County's Amish community and German roots are famous for storing up the year's harvest by canning. ... So, if you have any old Ball canning jars, click on my link below to get my tips for dating them! Welcome to home and decor encore. This week's Home and Decor ...Inspect the jars for any defects. Wash the jars in soapy water. Rinse the clean jars with hot water. Put the hot jars into the boiling water canner. Cover the jars with water. Boil them for 10 minutes to sterilize. Step 1: Fill your canner with water - It takes a while for a large pot of water to boil, so plan ahead.The jars may be popular for canning fish in part because they are very easy to clean afterward. Longer venting times for quarts / litres. The standard venting time of 10 minutes for your pressure canner before putting the weight on is followed when canning pint / half-litre jars of fish.. When you are doing quarts of fish, this venting time is extended.

The rack helps keep the jars from touching the bottom of the pot and getting cracked or broken. 3. Add enough water to the pot or canner so that the water level is at least 1 inch above the tops of the jars. 4. Bring the water to a boil and let it boil for 10 minutes to sterilize the jars. 5a).Height: 6 3/4 inches tall without lid. Diameter: approx. 3 3/4 inches. Volume to neck: 1L / 32 oz. Not sure what a Gem jar is? Click for our size guide. This beautiful jar was produced from the late 1920's through the 1930's in Canada. In fact, Gem Jars were only ever manufactured in Canada. Our entire pantry is Improved Gem jars with Glass ...The manufacturer of metal stamped jar tops, rubber jar rings, and glass jars for packing, founded in 1991, also produced zinc blanks used to make pennies. Revenues for Kerr hit in the normal range for the struggling company, at …Fill up the canner so the water sits about three inches above the jars. Using a jar lifter, set the canning jars with the lids secured on the pressure canner’s racks. Follow the time on the recipe to make sure the food is canned correctly. Let your canning jars cool naturally for 12 to 24 hours. How to Can Zucchini Relish Check the jar from top to bottom. The Kerr name will be embossed on the glass. There are some general guidelines to approximate the date of a vintage Kerr jar between 1915 and 1930. The finish on a fruit jar can tell you roughly about the date it was made. If the finish on the base is smooth on the lip of the jar, it usually means the jar was ...

The best way to identify antique canning jars is by looking for marks and logos on the bottom of the jar. Many household name manufacturers used specific marks or logos that helped differentiate their products from others on the market. For instance, Ball corporation mason jars typically have a ball logo featuring two overlapping circles with a ...Re-processing Will Result in Overcooked Food. The food will be overcooked! The quality will likely suffer. Again this is dependent on food type. The food that is going into your jars is already very cooked and soft. Even though it is already cooked, you will still need to use the entire processing time.Simply place the clean jars upside down on a baking sheet and put them in a preheated oven (200-250 degrees Fahrenheit). Leave them in the oven for at least 10 minutes to ensure sterilization. 1) Preheat oven to 350 degrees F (175 degrees C) 2) Wash jars and lids in hot soapy water. Rinse well. 3) Arrange jars upside down on a clean baking sheet.Vintage Mason Jar Colours. Mason jars were manufactured in many different colours, including clear, pale blue, yellow, amber, olive and various other greens. (In the early 1900s, people thought darker glass helped prevent food from spoiling as quickly.) The rarest of the jar colours are green and have been known to fetch upwards of $300 per jar ...The Paksh Novelty Mason Canning Jars are a great canning option. Coming in a 6-pack, these airtight containers are the superstars of pickling, canning, and food storage. It is so lovely to see kitchen shelves lined with these beauties, filled with colorful pickles, preserves, and overnight oats.

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Tremendous numbers of white "Boyd" milk glass liners (the miniature round glass "saucers" or discs that fit inside zinc screw-threaded lids, made for Mason-style fruit jars) were produced, as well as canning jars (fruit jars) including the ATLAS jars for general household use; "packer ware" (generic containers for a multitude of common food products such as mayonnaise, spaghetti ...In a medium-sized saucepan, combine the granulated sugar and water. Place the saucepan over medium heat and stir until the sugar dissolves completely. This process usually takes around 5 minutes. Once the sugar has dissolved, increase the heat to high and bring the syrup to a gentle boil.Bail lid jars have a two-part wire clasp attached to the top of them. Older-style U.S. made bail jars from the first half of the 1900s offered weak clasps. Le Parfait jars operate on a similar principle but with better-made bails.Check the bottom of the ball jar to find the manufacturer’s logo. Look for a three-digit number in the bottom center of the logo. This number corresponds to the year the jar was made. If there is no three-digit number, look for a four-digit number below the Ball logo. The first two digits of this number correspond to the year the jar was made.In the photos below, I am canning marinara sauce. Step 1: Fill the waterbath canner and heat the water to a boil. Make sure you put the rack in the bottom of the canner before filling it. The water level needs to be 1-2 inches above the jars. Step 2: Wash your jars, rims, and lids. Only sterilize jars, if necessary.For printing and adhering your handcrafted labels, you have two options. Option 1: Print 4-6 labels on regular or heavy-duty printer paper, or even card stock if you're only adding a label to the lid. Then, cut each label out and use double-sided tape or glue to affix the label to the jar. Option 2: Print 4-6 labels on sticker paper, cut them ...

The Homestead Canning Cookbook at Amazon ($16) Jump to Review. Best for Pressure Canning: The All New Ball Book of Canning and Preserving at Amazon ($16) Jump to Review. Best Canning and ...Instructions. Prepare the strawberries - Wash and hull the strawberries. Place them in a bowl and sprinkle the sugar over the top, then stir to evenly distribute. Cover the bowl and store in the fridge for 6 hours to allow the fruits to macerate and create their own juice.Put the jars with the opening facing up in a large canner or stockpot on a canning rack. Fill with enough water to cover the jars by 1-inch (fill the pot with hot tap water to cut down on the time it takes for the pot to come to a boil. Cover the stockpot with a lid and boil for 10 minutes. Use jar lifters to lift the jars from the boiling water.Step 1 - Preparing for canning. Thoroughly clean your jars and bottles with warm water and soap and rinse well. Check each jar and bottle for cracks and damages and make sure the lids are sealing tight. Pick a large heat resistant pot or deep tray (if you have a canner pot, that's awesome!) and lay a clean towel on the bottom.The value of old canning jars, including Mason, Kerr and Ball jars, is determined by the jar’s embossing, closure, color, size, age and condition, according to Collectors Weekly. A...Wash the jars, lids, and screw bands in hot, soapy water, making sure to rinse well. Place the jars upright on a wire rack in a large pot, fill pot with hot water until the jars are submerged, and bring the water to a boil. Boil for 10 minutes, turn off the heat, and leave jars in the water. Sterilize the lids according to the manufacturer's ...4 days ago · Keep an eye out for high-value styles and color combos, such as these example Atlas Mason jar values. Jar Style and Color. Value. Atlas Strong-Shoulder Mason in cornflower blue and amber. $130. Atlas Mason's Patent in green. $69. Atlas Strong Shoulder Mason in aqua and amber. $65. When it comes to choosing the right ham for your meals, there are a variety of options available. One popular choice is the Hormel 5 lb canned ham. However, many people wonder how ...Mar 20, 2024 · A common Mason jar costs around $10-$25, but if you find a rare shape, a patented model, or a rare colored jar, you can price it up to $50 – $120. 3. Lightning Jars. If you find an old glass bottle or jar with a glass lid secured with a metal wire bail, you’re looking at an old lightning jar invented around the 1870s. How to Date Kerr Jars. About Antique Bottles. Atlas canning jars dating. Jennifer Bentley, 31 years old. Hazel-Atlas eventually canning to become strong of the largest glass manufacturing canning in the world, probably second in the United States, behind Owens-Illinois Glass Company with 14 glass plants atlas canning jars dating simultaneously.Dry canning is where dry foods like flour are put into canning jars with lids and then heated in the oven. The heat is thought to sterilize the food and create a seal. Even though canning jars are used, dry canning is NOT the same as water bath canning. As warned by NM State University, there are a lot of potential problems with dry canning.

You need labels for safety, for organization, and for sanity so you can tell the difference between similarly colored jars. Grab a sheet of the Love Into Jars Round Canning Labels and print them on your regular at home printer on regular paper OR on an Avery Label Template 22807. They fit on regular or wide mouth lids, or on the side of any jar.

Phrases like “improved,” “special,” “perfect,” “sanitary,” “ideal,” “square” and “eclipse” can all help identify the year of your jar. For example, this Ball Mason jar with the phrase “perfect” on the bottom is …Vintage Pat. 1908 Ball Ideal 1 Quart #4 Glass Jar with Glass Lid and Metal Bail. Lid Is Uranium Glass - Glows Green Under UV Light! (68) $49.00. RARE 1896-1910 blue glass 2 quart Ball Mason canning jar with screw lid. The logo on the jar with a Triple L is what dates it. Misc 678.4. Weck 742 Mold Jars. Experience the epitome of food preservation with Weck's 742 Mold Jars . Versatile, BPA-free, and available in several sizes and shapes, these jars offer an airtight and decorative solution for preserving your home-grown vegetables and fruits or leftover food. The thick and sturdy glass construction offers unrivaled ...Once the jars are finished processing, let them cool fully. Once they are totally cool to the touch, you can remove the clips and check your seals. There are two easy ways to ensure you’ve got a good seal. The first is to grab onto the jar holding onto just the lid and lift the jar just a bit (I will never be a hand model).Inspect the jar for any signs of defects. If the jar has any cracks or chips, it is likely not sealed correctly and should not be used. Look at the lid of the jar. If the metal seal is not tight against the glass, then the jar is not sealed correctly. Tap on the lid of the jar with a spoon. If you hear a popping sound, then the jar is sealed ...dating fruit jars. This site, West Saint Paul Antiques, has wonderful information on dating fruit jars if you would like to find out more about an old jar you may have!Here's the section of their site that describes the ones I found. "About 1895, Ball began using machines (these jars have smooth lips) and began to phase out the old blowing methods. This transition took several years. The ...Apr 12, 2013 ... I have heard that mason jars with a ... Mason Jars with number 13 on the bottom ... From Bob Clay on a website titled "How to date Ball Fruit Jars"Prepare meat broth or stock as you otherwise would, and be sure to filter out all the solids. We use cheesecloth to get every last bit, which results in a much clearer broth. Load the boiling broth into pint or quart canning jars, leaving 1" headspace. Seal with 2 part lids and load into a pressure canner.The basics of canning jars. The most important thing to remember is that you need something that can withstand the preservation process. Remember that you subject the canning jars to heat, so you need a jar that can handle the stress. To start, a canning jar should be made with tempered glass. Tempered glass can withstand heat far better than ...

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Jars marked “PAT NOV 26 67” on the base. Some MASON’S PATENT NOV 30th 1858-type jars are marked with a “Maltese Cross” symbol (which indicates the Hero Glass Works / Hero Fruit Jar Company, of Philadelphia, PA) either above or below the word MASON’S. On most examples, the letters “H”, “F”, “J” and “Co” can be faintly ...Processing of jars in a hot water bath or a pressure canner forms a vacuum seal. The sealing compound on the lid forms a seal with the top of the jar. The screw top holds the lid in place while this happens. Oxygen is pushed out of the jar as it is heated. When the food cools, the lid is sucks down and the rubber in the sealing compound forms a ...Lock the lid - Lock your pressure canner lid and allow steam to vent for 10-15 minutes. Once the steam stops, add the pressure regulator and watch for the vent to pop up. Process the jars - Process your canned pumpkin at 11 pounds of pressure. If you are using pints, process them for 55 minutes, or quarts for 90 minutes.Fill your kettle or stockpot and bring the water to a roiling boil. Place your filled jars in the rack, and gently lower the rack into the water, ensuring that there's at least an inch of water above the tops of the cans. Cover the stockpot or kettle and let boil for 10 minutes — or whatever is required in the recipe.3. I found this jar this last weekend at an estate sale for $1! It caught my eye because I've never heard of Drey before. I don't feel this is one that was made after Ball purchased them in 1920 because it doesn't have the concentric circles on the bottom or markings on the side. 1/2 gallon, clear jar.Labeling each jar with the date the product was canned as well as the type of the product will help you easily identify inventory that needs to be rotated. Before storing sealed jars, remove the bands. Wash bands, lids and entire surface of the jars to remove any food residue. ... Some canning jars are glass containers and therefore should be ...Use The Logo To Find An Approximate Age. It would have been much easier if Ball had placed a date on each and every jar, but that didn’t happen. Luckily, there are some tips and tricks you can use to determine an approximate age for your jar. First check the logo, which changed fairly frequently until about 1962.How to Date Kerr Jars. About Antique Bottles. Atlas canning jars dating. Jennifer Bentley, 31 years old. Hazel-Atlas eventually canning to become strong of the largest glass manufacturing canning in the world, probably second in the United States, behind Owens-Illinois Glass Company with 14 glass plants atlas canning jars dating simultaneously.Wash them in hot, soapy water and rinse well. 2. Place the jars on a rack in a boiling-water canner or on a folded towel in a large pot. Fill the canner or pot with enough water to cover the jars by 1 to 2 inches (2.5 to 5 cm). Bring the water to a boil over high heat and then reduce the heat to maintain a gentle boil.Phrases like “improved,” “special,” “perfect,” “sanitary,” “ideal,” “square” and “eclipse” can all help identify the year of your jar. For example, this Ball Mason jar with the phrase “perfect” on the bottom is … 1. Preheat your oven to 250 degrees Fahrenheit. 2. Wash your jars in hot, soapy water, and then rinse them well. 3. Place the jars upside down on a baking sheet, and put them in the oven for about 30 minutes. This will help to sterilize the jars and get rid of any potential contaminants. 4. ….

Here’s a list of the top ten Atlas Mason Jars still valuable today; 10. Atlas Square Mason Jars. Year: c. 1915. Price: $7.95. Vintage Square Hazel Atlas Mason Canning Jar with Zinc Lid 9-5 (Source: eBay) The Atlas Square Mason Jars come in four standard sizes – Half-pint, Pint, Quart, and Half-Gallon.Even if you decide to use only new jars, finding them at the best price is always important. 1. Walmart. If you live in the states, it's hard to beat Walmart's prices for canning jars. The general consensus is that Walmart has the best everyday prices for Ball and Kerr mason jars, lids, and bands.Remove Lids and Rings From Jars. Place the number of jars you'll need on top of the rack in your stockpot. Fill pot (and jars) with water to cover, place a lid on the pot, and bring it to a boil. Put your lids in a small saucepan and bring them to the barest simmer on the back of the stove.Here’s how you can sterilize your canning jars in the oven: First, wash your jars with hot water and soap. Then, rinse them well and place them upside down on a baking sheet. Put the baking sheet in a preheated oven (250 degrees Fahrenheit) and let the jars bake for about 30 minutes.1. Ball Upside Down Jars: Dating back to 1933, Ball Upside Down jars are one of the rarest mason jars with an upside-down "Ball/Mason" embossment. This jar design is extremely hard to find and can easily earn $500 - $600. One Ball upside-down jar was sold for $475 at a Greg Spurgeon Auction . 2.Using a clean sponge or cloth, wash the outside of the jars with warm, soapy water. Rinse the jars with clear water and set them aside to air dry. If needed, use a bottle brush or other small brush to clean the inside of the jars. Again, wash with warm, soapy water and rinse well with clear water. Set the jars upside down on a clean towel or ...The Paksh Novelty Mason Canning Jars are a great canning option. Coming in a 6-pack, these airtight containers are the superstars of pickling, canning, and food storage. It is so lovely to see kitchen shelves lined with these beauties, filled with colorful pickles, preserves, and overnight oats.Bring the water to a rolling boil and lower the jars nestled in the rack into the water and cover the kettle. Set the timer for 10 minutes for most jams, jellies, and chutneys, slightly longer for fruits and pickles, or follow the instructions in the recipe.Jars not covered with water in boiling-water canner; Jars removed from canner too quickly after processing is complete; Food absorbed liquid. The food in the jar that is not covered by liquid may darken, but should not spoil as long as it was processed according to up-to-date guidelines (see Canning Basics) and there is a vacuum seal on the jar.Turn the heat on high and wait until you see large bubbles rising to the top to know that it’s boiling. [10] Boiling the water will kill the bacteria in the food, the jars, and the lids. 4. Boil the water for 30 minutes, then turn off the heat. Set a timer for about 30 minutes and leave your pot uncovered. How to date canning jars, Inspect the jars for any defects. Wash the jars in soapy water. Rinse the clean jars with hot water. Put the hot jars into the boiling water canner. Cover the jars with water. Boil them for 10 minutes to sterilize. Step 1: Fill your canner with water – It takes a while for a large pot of water to boil, so plan ahead., Ball Mason Jar Date Chart (FREE DOWNLOAD) October 6, 2019. Share Share Link. Close share Copy link. Enjoy this easy to use reference we have designed to help you date your vintage "Ball" mason jars. Please print a copy to use at your convenience. ..., Turn up the heat and bring the jam to a boil, stirring frequently. Boil for 1-2 minutes, or until the jam reaches 220 degrees Fahrenheit on a candy thermometer. 5. Remove the pan from the heat and ladle the hot jam into clean jars, leaving about ½ inch of headspace at the top of each jar., Prepping jars for canning is a simple process that involves boiling the jars and lids to sterilize them. This ensures that any bacteria or contaminants are killed before you fill the jars with food. Canning is a great way to preserve food, and prepping the jars properly is an important step in the process., Use the Mason Jar Size Chart below to help you select the mouth opening and jar shape that fit your needs. If you choose to process the recipe in a jar smaller than a quart but larger than a pint canning jar, follow the processing time given for quarts. If your jar selection is smaller than a pint, follow the processing time given for pints., Keeping jars for canning hot prevents them from breaking when filled with hot food. Leave lids and bands at room temperature for easy handling (see tip at bottom). 2. Add 2-3 inches of water to your pressure canner. Bring to a simmer (180°F). 3. Prepare the desired tested low-acid preserving recipe., Clean the jars and lids with warm, soapy water. Rinse the jars and lids with clean water. Place the jars on a baking sheet and put them in a preheated oven (200 degrees F) for 10 minutes to sterilize them. Fill the jars with your desired food item, leaving about 1/2 inch of headspace at the top of each jar., Vintage Pat. 1908 Ball Ideal 1 Quart #4 Glass Jar with Glass Lid and Metal Bail. Lid Is Uranium Glass - Glows Green Under UV Light! (68) $49.00. RARE 1896-1910 blue glass 2 quart Ball Mason canning jar with screw lid. The logo on the jar with a Triple L is what dates it. Misc 678., Place the rack in the bottom of the pot. Bring the water to a boil over high heat. Add the jars one at a time using tongs. Make sure they are completely submerged under water. Boil for 10 minutes to sterilize the jars. Remove the jars from the pot using tongs and place them on a clean towel to cool slightly., The most accurate way to date a Ball Mason jar is by checking the patent date stamped on the lid. In 1858, John Landis Mason invented the screw-on lid and patented it with his brother Henry. The jars were originally intended for home canning to preserve., Get the best deals on Drey Mason Jar when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite brands | affordable prices. ... New Listing Drey 1920's Perfect Mason Canning Jar 5 Zinc Lid Circa 1900 Mason Jar Two Quarts. Pre-Owned. $103.50. Was: $115.00 was - US $115.00. or Best Offer. $12.45 ..., Here’s a quick guide to processing times for half pint jars, at different altitudes: Altitude Processing Time 0-1,000 feet 10 minutes 1,001-6,000 feet 15 minutes. 6,001-8,000 feet 20 minutes 8,001-10,000 feet 25 minutes As you can see, the higher the altitude, the longer you’ll need to process your jars., Mason Jars Patented Nov. 30th, 1858. Instantly recognizable by avid vintage-lovers, the Nov. 30th 1858 patent date appears on literally thousands of canning jars produced between 1858-1920. Mason wasn’t the only manufacturer to add this patent date to his jars, hence its vast proliferation., 7) Remove your hot jars from the water bath and fill with the hot syrup. Leave 1/4-inch headspace. Wipe the rims and add your lids and rings. Process in the canner for 10 minutes. Turn off the canner and let it sit 5 minutes with the lid off. Then remove the jars and let them cool on a wooden board., Use The Logo To Find An Approximate Age. It would have been much easier if Ball had placed a date on each and every jar, but that didn’t happen. Luckily, there are some tips and tricks you can use to determine an approximate age for your jar. First check the logo, which changed fairly frequently until about 1962., If you purchase honey with a “best by” date, the chances of it being pasteurized or having additives, will be there. In that case, stick to consuming by that date. ... As mentioned, the best way to store honey is in glass jars. Brand new canning jars are perfect for this. One quart mason jars are absolutely ideal. If storing in bulk for a ..., Here are some things to consider when deciding where to store your full canning jars: Temperature is best between 50-70 degrees F. Not too hot, and not too cold. This is a guideline–a few degrees won’t hurt either way, but 50-70 degrees is the ideal. Freezing is not good for your home canning jars!, Feb 17, 2024 · Key to antique canning jars identification is the recognition of brand names such as Ball, Mason, and Atlas, whose embossed lettering often indicates a jar's age and authenticity. Other tell-tale signs include the style of the jar's closure - from zinc lids to glass lids with wire bails - and the color of the glass, which ranges from aqua blue ... , Some Canadian made canning jars, particularly the "Improved Gem Jar" made by Dominion Glass/Domglas/Consumers Glass have a year number (e.g. 53) stamped into the bottom, but I haven't seen this with most other canning jar manufacturers. Sometimes you can get a year range by the style of logo used, or the jar shape, as these have changed a bit ..., Place your jars in the canner and fill it with enough water to cover the jars by at least 1 inch. 2. Place the lid on the canner and bring the water to a boil. 3. Once the water has reached a boiling point, turn off the heat and let the jars sit in the hot water for at least 5 minutes. This will help create a strong seal., Ball Blue Book (2014) says you can use either: "Ladle hot cooking liquid or boiling water over okra (in jars)." (Page 114) Our thoughts. Given how "gloopy" home-canned okra can get, anyway, we'd go with opinion 2, fresh water, to help reduce that. Recipe notes. Jars of home-canned okra will appear to go "cloudy" after a bit., Clean the jar to remove any dirt or grime. Inspect the jar for any cracks or chips. Hold the jar up to the light to check for any air bubbles in the glass. Flip the jar over and look for the Kerr logo on the bottom. If it is present, then you have a Kerr Mason jar from around 1913-1923., Store makeup brushes on the vanity. Make a home for fireflies in the summer. Fill with a homemade brownie mix and give as a gift. Store dry ingredients in the pantry. Make homemade candles or Epsom salts. Collect and display sand from oceanside vacations. When it comes to collecting antique jars, anything is possible., Reprocessing Unsealed Jars. If a jar did not seal, and the recipe has hot pack canning instructions for the food, it can be reprocessed within 24 hours. If reusing the same jar, check the jar sealing surface for tiny nicks. When reprocessing, follow the hot pack instructions, including reheating the contents, using a clean hot jar, and a new lid., To sterilize ball jars, wash them in hot, soapy water and then rinse well. Place the jars upside down on a clean towel to air dry. Once they are dry, place them in a preheated oven at 225 degrees Fahrenheit for 10 minutes. Remove from the oven and let cool before using. Previous., Dry canning is where dry foods like flour are put into canning jars with lids and then heated in the oven. The heat is thought to sterilize the food and create a seal. ... It's up to the manufacturers to decide what date to put on the food. Flour will generally last much longer than 10 months (or even a few years) even without any special ..., The basic steps for canning soup in mason jars are: prepare the jars, heat the soup, fill the jars, and process the jars. Prepare your soup recipe as usual. Place a canning funnel into the mouth of a clean, dry mason jar. Ladle the hot soup into the jar, filling it to within 1 inch of the top of the jar. Remove any air bubbles by running a non ..., Wash the jars, lids, and bands in hot, soapy water. Rinse and drain. Fill the canner with water and place the jars on the rack. Cover and bring to a simmer over medium heat. Reduce heat and keep the jars hot until you're ready to fill them. Put the flat lids in a saucepan and cover with water; bring just to a simmer over medium heat. Do not boil., Hold the jar up to a light to check for any air bubbles in the glass, which would indicate that it is not an authentic Ball Mason jar. Look for the Ball logo on the bottom of the jar. If there is no logo, it is not an authentic Ball Mason jar. 5- Check the date on the bottom of the jar., To pre-sterilize jars, place the cleaned jars right-side-up on a rack in a canner and fill the jars and canner with water to 1-inch above the tops of the jars. Bring the water to a boil and then boil for 10 minutes at altitudes less than 1,000 feet elevation., Here's how to date Ball jars to find out. The first step is to check the logo. EarlyBall jars used different logos depending on when they were made. If the logo is on the front of the jar, it was made after 1885. If it's on the side, it was made between 1880 and 1885. Next, look at the style of the jar., 1. Using a Spoon. The first method involves using a spoon to break the seal and create an opening for the vacuum to release. Grip the jar firmly with one hand and, with the other hand, take a spoon and carefully slide the tip of it under the edge of the lid. Gently leverage the spoon, so the edge of the lid lifts until you hear the vacuum seal pop., To reprocess a jar that didn't seal, remove the lid and check the rim of the jar for nicks. If you find any nicks, smooth them out with a clean cloth. Wash the lid and screw on a new band. Fill the jar with boiling water, leaving 1/2 inch of headspace at the top of the jar. Wipe off the rim of the jar with a clean cloth.