How many qt jars can be canned in this pressusre canner?

7 quarts jars. 10 regular mouth pints jars. I currently today have 20 pints of pork canning (i have an additional metal plate like the one that goes on the bottom ) 10 pints on the bottom and 10 on the top rack. You can not double stack quarts. This is the best canner I have owned

How many Quart and pint jars does it hold?

I would not put in more than 9 regular mouth pint jars per level, for a total of 18 jars. When you put in 10/level the jars get wedged in and there's a risk of jars cracking, based on my experience. I've been canning for 50+ years and am on my third 23-quart pressure canner just my opinion.

Can this canner be safely used on a glass-surface range? If so, what is the smallest burner on which it can be safely used?

The issue people have with using large vessels on glass top ranges is that if the vessel is larger than the burner ring, it could transfer heat past the area where the glass has been properly tempered for high heat (outside of the burner ring). This could cause a failure in the glass top surface. I would check with your range mfg as well as inly cook in a burner that is the same diameter as the vessel you're using.

how pressure is regulated

The pressure is actually regulated by a weight that sits on top of the vent pipe. The canner comes with a weight for 15 PSI, but Presto has weights for 5 & 10 PSI. You may also manually regulate the pressure by monitoring the gauge and controlling the heat under the pot.

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🥫 Preserve your legacy with precision and style!

DUAL PURPOSE POWER - Pressure canner doubles as a water canner—perfect for fruits, jams, and salsas.
SAFETY FIRST ALWAYS - Easy-to-read pressure gauge and secure air vent lock ensure USDA-recommended safe canning.
BULK UP YOUR PRESERVES - Generous 23-quart aluminum capacity lets you can large batches effortlessly.
COOK LIKE A PRO ANYWHERE - Compatible with gas stovetops, giving you flexible cooking options at home or on the go.
BUILT TO LAST DESIGNED TO IMPRESS - Durable lightweight aluminum with sleek silver finish fits any modern kitchen.

The PRESTO O1781 23QT Aluminum Canner is a USDA-recommended pressure canner designed for safely preserving low-acid foods like vegetables, meats, and fish. Featuring a large 23-quart capacity, a precise pressure gauge, and a secure air vent lock, it ensures safe and efficient canning. Made from durable aluminum and compatible with gas stovetops, it also doubles as a water canner for fruits and jams, making it a versatile must-have for any home preservation enthusiast.

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Manufacturer	National Presto
Model Number	01781
Package Dimensions	36.8 x 36.8 x 35.6 cm
Material	Aluminum
Color	Silver
Volume	23 Quarts
Size	21.8 L
Wattage	1000 W
Special Features	Gas Stovetop Compatible
Voltage	100 Volts (AC)
Volume Capacity	23 クォート
Package Weight	5.6 Kilograms
Batteries Required	No
Batteries Included	No
Brand Name	Presto
Capacity	21.8 Liters
Country of Origin	China
Item Weight	12 Pounds

PRESTO O1781 CANNER 23QT ALUMINIUM

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