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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
Canning is a method of food preservation in which food is processed and sealed in an airtight container (jars like Mason jars, and steel and tin cans). Canning provides a shelf life that typically ranges from one to five years, [ a ] although under specific circumstances, it can be much longer. [ 2 ]
Perpetual stews are speculated to have been common in medieval cuisine, often as pottage or pot-au-feu: . Bread, water or ale, and a companaticum ('that which goes with the bread') from the cauldron, the original stockpot or pot-au-feu that provided an ever-changing broth enriched daily with whatever was available.
The Siwoloboff method is used to determine the boiling point of small samples of liquid chemicals. A sample in an ignition tube (also called a fusion tube) is attached to a thermometer with a rubber band, and immersed in a Thiele tube, water bath, or other suitable medium for heating. A sealed capillary, open end pointing down, is placed in the ...
See also References Further reading External links A acidulate To use an acid (such as that found in citrus juice, vinegar, or wine) to prevent browning, alter flavour, or make an item safe for canning. al dente To cook food (typically pasta) to the point where it is tender but not mushy. amandine A culinary term indicating a garnish of almonds. A dish served amandine is usually cooked with ...
In cooking, reduction is the process of thickening and intensifying the flavor of a liquid mixture, such as a soup, sauce, wine or juice, by simmering or boiling. [1] Reduction is performed by simmering or boiling a liquid, such as a stock, fruit or vegetable juice, wine, vinegar or sauce, until the desired concentration is reached by ...
Condensed soup (invented in 1897 by John T. Dorrance, a chemist with the Campbell Soup Company [8] [9]) allows soup to be packaged into a smaller can and sold at a lower price than other canned soups. The soup is usually doubled in volume by adding a "can full" of water or milk, about 10 US fluid ounces (300 ml).
Meatball soup simmering on a stove. Simmering is a food preparation technique by which foods are cooked in hot liquids kept just below the boiling point of water [1] (lower than 100 °C or 212 °F) and above poaching temperature (higher than 71–80 °C or 160–176 °F). To create a steady simmer, a liquid is brought to a boil, then its heat ...