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We refrigerate food to keep bacteria, yeasts, and molds from the favorable temperature they need to grow. The moisture-control available in many refrigerators also helps slow the deterioration of foods, so that two of the three favorable situations for microorganism growth are eliminated.
Food preservation is a process used to slow the spoilage of food. Food spoils because of pests and microorganisms getting to the food. Microorganisms multiply in the food and diseased pests getting at the food will cause food to go bad.Food preservation prevents pests and microorganisms from spoiling food.ickling. Cucumbers, vegetables, fruit, meat, eggs, and nuts are the foods that are ideally suited to this preservation method. To pickle foods, add vinegar, salt brine, or sometimes sugar. This method is a good idea to use because it adds flavor while preserving the food.