Is there a difference between a pressure cooker and a pressure canner? A lot of people who approach canning for the first time ask themselves this question.
Well, the answer is that they are basically the same thing since they use pressure cooking as their cooking method. But, the cooker that you are going to use for canning has to have certain features.
Pressure Canner
The main difference is the size
A pressure canner is larger in size than a pressure cooker. Canners have usually a capacity of 10 Quarts and more, because they have to be large enough to accommodate a certain number of jars on the bottom. So, you can use a larger pressure cooker for canning as well.
On the other hand, pressure canners can be used for pressure cooking, even though because of their large size and weight they are not very practical to handle for everyday cooking.
The material
Cookers are usually made of stainless steel, aluminum or combinations of both materials (aluminum is in the core of a stainless steel "sandwich"). Stainless steel is not a very good thermal conductor so aluminum (or even copper) is added to compensate it.
Most pressure canners are all aluminum.
The pressure settings
Pressure cookers usually have a working pressure of 15 psi (this is the standard). Usually, today's cookers come with an additional lower working pressure setting for the purposes of cooking more delicate ingredients and meals (like fish), but you are most likely going to use the 15 psi setting. A decrease to 12 or 10 psi will increase the cooking times.
Pressure canning require the use of different working pressures. The pressure you are going to use for your canning depends from the jar's size you are using, the acidity of the food you are canning and the altitude of your location. So, you need to increase it if you are canning low acidity foods or if your location is on higher altitudes. Buying a canner with three different pressure settings is ideal.
The gasket
Cookers usually have sealing rings made of rubber or silicone (gaskets) for the purpose of creating an airtight environment inside the cooker and preventing the air and steam from escaping.
Special Price!!! Granite Ware 11-1/2 Quart Covered Preserving Canner with Rack
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Granite Ware 11-1/2 Quart Covered Preserving Canner with Rack Feature
- 11-1/2-quart capacity stockpot-style canner, can hold up to 7 pint jars
- Black ceramic-on-steel with stain- and odor-resistant surface
- High efficiency, quick boiling performance
- Rust-proof aluminum rack included
- Easy-to-clean, dishwasher-safe
Granite Ware 11-1/2 Quart Covered Preserving Canner with Rack Overview
Six generations of Americans have been using Granite Ware canners to preserve fruits and vegetables. This mini canner is perfect for preserving jams, jellies and salsa. Holds seven pint jars. Comes with rack for easy lifting jars from canner. Granite Ware's high efficiency, quick boiling performance combined with its modest cost make it ideal for canning. The dark porcelain surface and steel core absorbs energy and evenly distributes heat to the contents. Porcelain enamel is the result of fusing powdered glass to a substrate by firing, usually between 750 and 850 degrees Celsius. The powder melts and flows and hardens to a durable vitreous coating on a carbon steel core. It creates a smooth, hard finish that won’t burn and resists staining. It’s also non -porous so it won’t trap odors or food particles and provides a low coefficient of friction – meaning that it cleans up easily and, it is corrosion and chemically resistant so it will last a long time. When fired, the vessel is placed on pins so the bottom and sides are hardened during the firing process into one smooth laminated glass surface. You may notice slight pin indentations where the glass has flowed around the pin that supports the base during firing. The pin marks do not compromise the finish or performance of the vessel in any way but you should take additional care in handling if using on glass top stove. 11 1/2qt capacity.SAVE NOW on the special offers below!
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