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Most canning recipes call for using a boiling water method or a pressure canner, depending on the acidity of the food being canned. Pay attention to the directions, and follow them.
Using the water bath technique for low-acid foods (foods with pH greater than 4.6). [15] Otherwise correct water bath or pressure canning but processing for too little time, the wrong pressure, or not considering variations in time/pressure due to altitude. Re-using one-use seals; Using cracked or chipped jars
A canning jar used by Nicolas Appert's canning factory. Shortly before the Napoleonic Wars, the French government offered a hefty cash award of 12,000 francs to any inventor who could devise a cheap and effective method of preserving large amounts of food to create well-preserved military rations for the Grande Armée. The larger armies of the ...
Food is processed in Weck jars using the water bath canning technique, not a pressure canner. During the canning process the lids are secured by the clips which must be removed once the processing is complete and the jars have cooled. A correctly sealed jar is indicated when the tab of the rubber seal points downward.
How should we interpret the 'best by' dates on canned goods? It is also worth noting that the age of food is not what makes you sick, it is whether the food becomes contaminated. Most 'best by ...
Boiling the jars will remove the oxygen remaining in the jar, which forms a tight seal between the lid and the rim. The heat used for this method of canning can be sufficient to kill bacterial cells found in the food. Only high-acid food with a pH of 4.6 or less can be processed using the boiling water bath method.
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