How to Make Dried Pineapple/How To Dehydrate Pineapple:

  The retention period of fresh pineapple is short, so people usually make pineapple into dried pineapple. Dried pineapple not only retains the nutrition of pineapple, but also can be stored for a long time.

Method of drying pineapple:

  Traditional dried pineapple is mainly dried by electric heating or dried in the sun, both methods have obvious shortcomings. Drying in the sun is easily affected by wind, rain, etc., and the quality and taste of dried pineapple are not good. Electric heating consumes a lot of electricity, and the drying operation cost is relatively high. Intelligent control, energy-saving and environmentally friendly heat pump dryers will become the first choice for drying pineapples and other fruits and vegetables, but the cost of drying pineapples with dryers is higher. It is suitable for making dried pineapple in large quantities. If you are making dried pineapple at home, you can use the oven.

How to make dried pineapple in the oven:

1. Choose ripe fresh pineapple, pay attention to the pineapple skin not rotten
2. Remove the pineapple skin
3. After rinsing with water, cut into slices about 3 or 4 mm thick (not too thin, it is easy to burn).
4. Put it in the basin and soak in salt water for ten minutes
5. Put a high-temperature tarp on the baking tray, put the cut pineapple slices into the oven, turn on the hot air function, and bake at 180℃for 12-15 minutes (it is best to turn the sides once during the process), and then change to 110℃and bake for 50 minutes.

How to dry pineapple in large quantities:

1. Raw material processing: Choose ripe fresh pineapples, remove rotten fruits, peel them, and slice them. The thickness of each slice is about 3-4 mm.
2. Color protection measures: Use 3% lime water to stir and settle the supernatant after soaking the pineapple slices for 8 hours, then rinse with clean water and let the water drain.
3. Treatment of concentrated sugar solution: prepare 60% sucrose solution, which means that there is 60 kg of granulated sugar in 100 kg of sugar solution and 40 kg of water. Dip the pineapple slices in 60% sugar solution, just after the sugar solution has soaked the raw materials, the time is 24 hours.
4. Drying: Take out the pineapple slices from the sugar solution and drain the water.
The first stage: the baking temperature is set to 55℃, the continuous heating mode, the time is 2 hours;
The second stage: temperature 60℃, the humidity setting 35%, drying + dehumidification mode, time 8 hours;
The third stage: the temperature is raised to 65℃, the humidity is set to 20%, the model is drying + dehumidification, and the baking time is 8 hours;
The fourth stage: the temperature is set to 50℃, the humidity is set to 18%, and the continuous dehumidification mode is baked for about 1.5 hours, and the drying is completed.
5. Packaging: The dried pineapple slices will retain moisture when directly exposed to the air, so they need to be sealed and packaged. It can also be vacuum packed, which can maximize the preservation of the color and fragrance of pineapple slices or pineapple slices.

Precautions:
1.The pre-drying of pineapple slices can control the temperature a little higher, which is good for dehumidification. In the later period, with the increase in sugar content, the temperature needs to be lowered for baking.
2.After 60% concentrated sugar solution is processed with pineapple slices, the concentration will decrease, but it has a pineapple aroma and can be used as pineapple juice.

  If you want to dry pineapple in large quantities, it is recommended that you use a dryer to dry pineapple. Baixin Machinery is a manufacturer specializing in the production of dryers. It has 20 years of rich experience. For pineapple drying, it has professional drying equipment and mature drying technology to ensure the perfect drying effect.

  The most popular pineapple dryers of Baixin Machinery are heat pump dryers and continuous mesh belt dryers. I will introduce these two dryers in detail for you:

1:The first method:pineapple heat pump dryer

Commercial 100-3000kg/h large amount of dehydration wide application and easy operation
  Heat pump drying machine use the principle of inverse Carnot cycle. It absorbs low-temperature heat energy in the air, which becomes high-temperature heat energy after efficient heat collection and integration by the heat pump system, and is transported to the drying room for cyclic heating and drying of materials.It refers to exhausting the hot and humid air in the drying room directly to the outside of the drying room through dehumidification device, and then replenishing natural fresh air.

  Hot air circle drying machine belongs to high temperature heat pump unit. Its working principle is: the working fluid of the heat pump is compressed by the compressor, becomes high temperature and high pressure gas, enters the condenser, condenses and liquefies the heat, and is used for air heating in the drying room. The moisture in the material is vaporized and evaporated by the form of hot air, and the evaporated water vapor is discharged by the moisture discharge system, thereby achieving the purpose of drying the drying material.

2:The second method: pineapple continuous mesh belt drying machine

Large amount of dehydration 200-5000kg/h pineapple drying machine continuous automatic work easy operation
  Pineapple dryer machine is a kind of continuous production drying equipment, the main heating way has electric heating, steam heating, hot air heating. Its main working principle is to spread the material evenly in the network. The material is moved in the dryer by the operation of the machine, and the hot air draws out the water vapor of the material. so as to achieve the purpose of drying.
  The operation temperature is 40-120 degree centigrade. And the dry cycle is 1-5 hours.

Pineapple drying video：