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2012年8月26日 星期日

Pressure Canners - What Are the Differences Between Water and Pressure Canners


If you are into canning your own fruit or food, then you most likely know that there are several different ways you can go about canning. The three main canning methods available are water bath canning, steam canning and pressure canning. Each of these different methods has their own advantages and disadvantages. You are about to see that they aren't all equal and in actual fact water bath canning can be used for only a small variety of foods, whereas pressure and steam canning is suited to a much wider variety of foods. Knowing this in advance will ensure that you don't end up buying the wrong canner in the near future.

Water bath canning is perhaps the most basic and limited of all the canning methods. Water bath canners are only able to can food that has high acidic levels. This includes things like acidic fruits and vegetables, such as jams, jelly and tomatoes. Only a very select few vegetables are very acidic and the remaining have very low acidic levels. Another limitation of water batch canners is that they are limited in terms of how hot they get. The maximum temperature possible with a water canner is 212F. This isn't a problem if you are canning high-acid fruits, but to effectively can other fruits and vegetables you will need a canner that can reach much higher levels. Why is the temperature important? You canner needs to reach a certain level in order to kill all the bacteria in the food you are canning. If you don't then the bacteria will remain and this can be a danger to your health.

Steam and pressure canners can reach a maximum temperature of 250F, which is more than enough to kill all bacteria in low acid vegetables and meat. This is the main advantage of using a steam or pressure canner over a water bath canner; being able to reach such a high temperature means that canning just about every kind of fruit or vegetable or even meat isn't a problem with these canners. The difference between a pressure canner and a steam canner is minimal. They are almost identical with the only major difference between them being that pressure canners are much larger and usually have some kind of tray or additional devices which makes canning easier and faster. Other than this they have the ability to can the exact kinds of fruits, vegetables and meat.

Which canner you buy really depends on how serious you are about canning. If you are just starting out then a water bath canner might be just right for you, but anyone who is experienced or plans on taking up canning full-time should consider purchasing either a steam or pressure canner. The ability to reach much higher temperatures makes it possible for steam and pressure canners to can almost every kind of fruit, vegetable and even meat out there. The downside is that these canners are a little more complex and more expensive. If you are still unsure as to which one you should buy, try making a list of all the kinds of things you plan to can and if you find that the bulk of them are fruits, then a water bath canner is right for you; however, if your list consists of both fruits, vegetables and meat, then only a pressure or steam canner will fit your needs.




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2012年8月21日 星期二

What Is the Difference Between a Pressure Cooker and a Pressure Canner?


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.

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.




There are pressure canners (like the All American canner) that have special metal-to-metal sealing systems. Having a canner without a gasket can be quite handy because there is no need to wash it every time you use the canner or to buy a new one every now and then.

Click All-american pressure canner if you want to buy the best pressure canner on the market at highly discounted prices. If you are looking for a quality pressure cooker click Kuhn Rikon Duromatic. You will get free shipping as well.





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