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Preparation of dehydrated tomato products Next. Drying is the oldest known method of preserving food. Dehydration is the process of slowly removing water.

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Presentation on theme: "Preparation of dehydrated tomato products Next. Drying is the oldest known method of preserving food. Dehydration is the process of slowly removing water."— Presentation transcript:

1 Preparation of dehydrated tomato products Next

2 Drying is the oldest known method of preserving food. Dehydration is the process of slowly removing water from tomatoes. Dried or dehydrated tomatoes have longer shelf life. Introduction Next End In the Mediterranean region, tomatoes are dried in the sun Preparation of dehydrated tomato products

3 Introduction NextEnd Preparation of dehydrated tomato products Time it takes to dry tomatoes depends on the Variety of the tomatoes, humidity in the air during drying process, thickness of slices or pieces and efficiency of dehydrator or oven Firm, ripe, meaty tomatoes are dry best, Roma, plum or pear tomatoes varieties give good product These varieties have good pulp and few seeds Previous

4 Introduction NextEnd Preparation of dehydrated tomato products Successful dehydration of tomatoes is depended upon control of the temperature and air calculation They should not be dried either at too low or too high temperature Properly dried tomatoes have dark red colour and Previous feel dry and leathery, but not hard or brittle not sticky or moister

5 Drying or dehydration means the process of removal of moisture by the application of artificial heat under controlled conditions of temperature, humidity and air flow. Definition of Dehydration Next End Previous Preparation of dehydrated tomato products

6 Methods of Dehydration Next End Previous Tomatoes can be dried in sun or by dehydrator Dehydrator dried product is superior in quality than sun dried There are basically 2 ways of dehydrating tomatoes: Preparation of dehydrated tomato products Oven drying Dehydrator drying

7 Methods of Dehydration Next End Previous It can be done in any time of the day. Source: http://nwfarmsandfood.com/index.php/3- ways-to-preserve-tomatoes It is best to use when the tomato quantity to be dried is small. Preparation of dehydrated tomato products Oven drying

8 Methods of Dehydration Next End Previous The heated air is circulated with the help of a blower or a fan. Source: http://nwfarmsandfood. com/index.php/3-ways- to-preserve-tomatoes Most dehydrators are equipped with thermostat. Preparation of dehydrated tomato products Dehydrator drying It is important to turn the tomato slices and also rotate the discs during drying.

9 Methods of Dehydration Next End Previous Require very little space for storage Can be stored in food grade plastic bags, air tight jars or any other suitable containers. Preparation of dehydrated tomato products Packaging and Storage Storage stability is 200 days. Dried tomatoes may be stored in cool and dry place.

10 Next End Previous Preparation of dehydrated tomato products Dehydrated Tomato Slices Dehydrated tomato powder

11 Rehydration Next End Previous Preparation of dehydrated tomato products It can be rehydrated in many ways: May be added directly into soups or stews May be soaked in water or vegetable juice to cover Takes 1-2 hours to rehydrate

12 Let Us Sum Up Next End Previous Drying is an important and oldest preservation method in food processing The main purpose of dehydration is to extend the shelf life of foods by a reduction in water activity It also saves energy, money and space in shipping, packaging, storing and transportation Due to these advantages the dried fruit or vegetable is known as high value low volume food. Tomatoes can be dried either in the sun or in dehydrator Preparation of dehydrated tomato products

13 Let Us Sum Up End Previous They can be dried as slices or pieces and made into powder Tomato products should be packaged in hermetically sealed container Preparation of dehydrated tomato products


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