Drying (dehydrating) food is one of the oldest and easiest methods of food preservation. Dehydration is the process of removing water or. All modern, reputable home food preservation sources recommend that almost all home food drying be done with a dedicated, purpose-made electric. Whenever you preserve foods, choose the best-quality fruits and vegetables. As with other food preservation methods, drying does not improve.


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What is food dehydration technique Drying basically dehydrates or removes the moisture from the food and this simple action inhibits the growth of drying food preservation, mold and yeast. Moreover, it slows down the enzyme action without deactivating them.


These factors ensure that food does not spoil easily and hence, makes drying an effective food preservation technique. Drying food preservation factor that helps with drying food is humidity.

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Since drying involves extracting the moisture from the food drying food preservation and expelling it into the surrounding air, low humidity will help with the drying process. Drain and place vegetables on drying tray. Steps for syrup blanching fruits only: Combine 1 cup sugar, 1 cup light corn syrup, and 2 cups water in a pot.

Using Dehydration to Preserve Fruits, Vegetables, and Meats | VCE Publications | Virginia Tech

Add 1 pound of fruit. Simmer 10 minutes Table 3. Remove from heat and keep fruit in syrup for 30 minutes. Remove fruit from syrup, rinse, drain, and continue with dehydration step. Drying food preservation is a pretreatment used to prevent fruits such as apples, bananas, peaches, and pears from turning brown.

Ascorbic acid, fruit juices high in vitamin C lemon, orange, pineapple, grape, etc.

Introduction to Drying Food: the oldest method of preserving food

For example, dipping sliced fruit pieces in a mixture of ascorbic acid drying food preservation and water 1 teaspoon ascorbic acid crystals per 1 cup of wateror dipping directly in fruit juice for 3 to 5 minutes will prevent browning.

Fruits may also be blanched as a means of treatment.


In this case food is flash frozen and put into a reduced-pressure system which causes the water to sublimate directly from the solid to the gaseous phase. Although freeze-drying is more expensive than traditional dehydration techniques, it also mitigates drying food preservation change in flavor, texture, and nutritional value.

In addition, another widely used industrial method of drying of food is convective hot air drying.

An Introduction to the Drying Food Preservation Method

Industrial hot air dryers are simple and easy to design, construct and maintain. More so, drying food preservation is very affordable and has been reported to retain most of the nutritional properties of food if dried using appropriate drying conditions.


For fruits and vegetables, you wash and then usually halve, quarter, drying food preservation slice the drying food preservation. For light colored fruits and all vegetables, you also steam-blanch to deactivate enzymes or prevent browning in light colored foods, and then pat dry.

Find more detailed instructions in this article: Methods for dried fruits, dried vegetables, and dried tomatoes.

Using Dehydration to Preserve Fruits, Vegetables, and Meats

Meat or fish jerky is often marinated and may also be cooked before drying. Find more information in this article: How to decide whether to precook meat when making dried beef jerky. Preheat a gas or electric oven to the lowest temperature setting. drying food preservation