Looking for Home Pressure Canner Directions: How They Work, Instructions and Tips to Using Them! in 2017? Scroll down this page and follow the links. And if you bring home some fruit or vegetables and want to can, freeze, make jam, salsa or pickles, see this page for simple, reliable, illustrated canning, freezing or preserving directions. There are plenty of other related resources, click on the resources dropdown above.
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Notes for September 2017: Blueberries and peaches are going still in northern and cooler areas, but are mostly finished in the Deep South. Blackberries, figs, and raspberries are in season now. Tomatoes are going strong, although the crop is way diminished in rainy areas like the southeast. Strawberries are finished, except in the far north, and if the farm planted Day Neutral varieties. Early apples, like Gala, are about to start!
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We also have home canning, preserving, drying and freezing directions. You can access recipes and other resources from the drop down menus at the top of the page or the site search. If you have any questions or suggestions, feel free to write me! It is easy to make your own ice cream, even gelato, or low fat or low sugar ice cream - see this page. Also note, there are many copycat website listing U-pick farms now. They have all copied their information form here and usually do not ever update. Since 2002, I've been updating the information every day but Christmas; so if you see anything wrong, please write me!-->
If you've tried some water bath canning; making jams or applesauce, you may have been tempted to can some other vegetables from you garden. If they are low-acid (and pretty much all vegetables other than tomatoes are low acid, not counting pickles - to which vinegar, which is acidic - is added) you'll need a pressure canner! And you definitely need a pressure canner for anything containing any meat. There are limits to what you can safely can at home, though. Home canning of dairy is not recommended (USDA, Ball, etc.) , even with a pressure canner.
The open water bath canners can't get water any hotter than 212 F and that's not hot enough to kill the bacteria that can grow in low acid foods. A pressure canner hits 240F which allows for home canning of many more foods, like corn, beans, meats, etc.).
A water bath canner is fine for acidic fruits and vegetables, such as jams, jellies, applesauce, apple butter, and tomatoes, but for almost all other vegetables, like carrots, squash, green beans, squash, corn, okra, etc. you'll need a pressure canner.
Quoting from the
Ohio State University Extension's Fact Sheet:
"Pressure canning is the only safe method for home canning
vegetables. Clostridium botulinum is the bacterium that
causes botulism food poisoning in low-acid foods, such as
vegetables. The bacterial spores are destroyed only when the
vegetables are processed in a pressure canner at 240 degrees
Fahrenheit (F) for the correct amount of time.
Clostridium botulinum is the bacterium commonly found in vegetables and meats. It is harmless until it finds itself in a moist, low-acid, oxygen-free environment or a partial vacuum. In other words, a sealed jar! Under these conditions, the bacterium can grow and produce toxins dangerous to people and animals. Yes, we have ALL heard about someone's grandmother who canned without a pressure canner and lived to 90. And we all know people who smoked 2 packs a day and lived to 90. But neither is smart to do, and the odds will catch up with most people. You'll literally gambling with your life when you eat low acid foods that were canned using the open water bath, rather than pressure canning method.
Do not process (low acid) vegetables using the boiling water bath because the botulinum bacteria can survive that method.
Modern pressure canners are lightweight, thin-walled aluminum or stainless steel kettles. Most have twist-on lids fitted with gaskets. There are still one or two that have screw-down knobs around the lid on the canner. They have removable racks, a weighted vent port (steam vent), and a safety vent. They also have either a dial gauge for indicating the pressure or a weighted gauge (which both regulates the pressure and indicates, by rattling). Pressure canners can usually handle either one layer of quart or smaller size jars, or deep enough for two layers of pint or smaller size jars.
Unlike a water bath canner, the jars do not need to be completely covered with water. The directions that came with the pressure canner tell you how many cups of water to add in order for it to generate the right amount of pressure. You vent the pressure canner a considerable length of time while the water boils (with the jars in and the lid on). This causes steam to push out all the air. So the jars are in a space filled with only boiling water and steam. In theory, both will have the same temperature, which will be 240 F, substantially high than 212 F of an open water bath canner, due to the increased pressure. And since there is no air, just water vapor, the heat will be easily conducted to all sides of the jars.
Ok, you're thinking, I have loads of vegetables from my garden that I could can for the winter, maybe I should get a pressure canner; but are they difficult to use? Not at all; here are typical step-by-step directions (of course, always follow any specific directions that come with any pressure canner you buy, but this will work for most!). See this page for detailed step by step directions to pressure canning! ANd if you are missing the manual for your pressure canner, click here for instruction manuals for all popular pressure canners.
Don't let the pressure drop during processing - if it starts to go down, turn the burner up just a bit.
If at pressure goes below the recommended amount, increase the heat to bring the canner back to pressure. Start the timing of the process over from the beginning.
If you are located over 1,000 ft above sea level; read the canner's instructions to increase the canning time or pressure.
Be sure to vent the canner with steam exiting for the specified length of time to prevent air becoming trapped in the closed canner. Trapped air lowers the temperature obtained for a given pressure and results in underprocessing. Most pressure canners must be vented 10 minutes before they are sealed and pressurized.
To properly vent a canner, leave the vent port (steam vent) uncovered after you fill the canner and lock the canner lid in place. Heat the canner on high until the water boils and generates steam that can be easily seen escaping through the open vent port. When a visible plume of steam continuously exits the canner, time for 10 minutes. After 10 minutes of continuous steam, you can close the vent (usually by putting the weight on it)) to begin pressurizing the canner.
See below for prices, descriptions and ordering options for pressure canners. For water bath canners and other supplies, see this page! If you have a glass top radiant stove, see Canners for glass top stoves?
For other supplies:
You can also find free information from the USDA in this PDF file (it will take a while to load!) about selecting and using canners here!
For more information, and NO obligation to buy, just click on the links in the Amazon boxes on the left!
If you want to can low-acid foods such as red meats, sea food, poultry, milk, and all fresh vegetables with the exception of most tomatoes, you will need a pressure canners. These foods fit into the low acid group since they have an acidity, or pH level, of 4.6 or greater. The temperature which must be reached and maintained (for a specified amount of time) to kill the bacteria is 240 F. Pressure canning is the only canning method recommended safe by the U.S.D.A. for low-acid foods such as vegetables, meats, and fish. Ordinary water bath canners can only reach 212 F and cannot to kill the types of bacteria that will grow in low acid foods. This temperature can be reached only by creating steam under pressure as achieved in quality pressure canners.
There are several manufacturers of pressure canners. The two leading ones are Presto and All American (Wisconsin Aluminum). They are more expensive than water bath canners, but extremely well built - I bought mine in 1988 and it still looks and works like new!
If you need replacement parts, like gaskets, rings, bolts, gauges, handles, etc, see this page for Presto pressure canners.
Presto 01781 23-Quart Pressure Cooker/Canner
This is usually about $80 PLUS SHIPPING. (which is a GREAT price for a pressure canner). There is also a 16 quart version for about $69. Click on the links at left or above for more info and current pricing. It is also available from Amazon .com (click on the box link at left) (and below from Target)
All American Pressure Canner and Cookers - In 3 Sizes
Fagor Home Canning Kit
3.7 out of 5 stars 65 customer reviews | 3 answered questions
|Canning all sorts of fruit and vegetables, even meat with a pressure canner it's easy. And although a pressure canner costs $100 to $200 (see this page for pressure canners models, makes and prices), they last a lifetime, and your children and grandchildren may be using it. You can also find free information from the USDA in this PDF file (it will take a while to load!) about selecting and using canners here!|
[ All About Home Canning, Freezing and Making Jams, Pickles, Sauces, etc. ] [FAQs - Answers to common questions and problems] [Recommended books about home canning, jam making, drying and preserving!] [Free canning publications to download and print]