What is the difference in vegetable sublimation drying technology?

When consumers learn about the technology of freeze-drying vegetables , you probably know that they are widely applied. However, you need to understand the two concepts that are freeze drying?, sublimation drying?. But many experts’ evaluations suggest that vegetable powders dried by sublimation will have higher quality. To know how higher, we come to the article below. 

Compare the difference between freeze-drying and freeze-drying technology

In general, these are the two most commonly used methods in the drying industry. But the way it is done, the quality of the finished product will be different, creating a difference in the hearts of users. 

Freeze-drying technology of vegetables

Freeze drying will use a method of drying the product thanks to the difference in humidity between the inside and the outside. Simply put, the air outside the product will dry very quickly, so the water in the product will evaporate faster until the humidity is almost equal. 

Image of vegetable freeze dryer
Image of vegetable freeze dryer

You can see that the most typical characteristics of vegetables using the freeze-drying method are that the vegetables are shriveled, the color is kept relatively poorly, the crispness is poor, and the moisture content is within 10%. This drying method is very suitable for making kohlrabi, carrots, chayote, cauliflower in the preparation of daily dishes. 

For thin-leaved vegetables such as sweet potato, ginseng leaves, lotus leaves, etc., they can be dried in a crispy way. But for everyday vegetables, it is often dry and chewy, so it is not easy to see. 

Freeze-dried spinach does not darken like heat-dried
Freeze-dried spinach does not darken like heat-dried

Sublimation drying technology of vegetables

Sublimation drying will use a negative drying temperature after 30 degrees Celsius in a drying chamber that has been vacuumed. That is why vegetable products are not deformed. When compared on this point, the freeze-drying method is superior to other methods. 

The technology of sublimation drying of vegetables will make the vegetables dry with a firm texture. Therefore, the slow water absorption keeps the crispiness of the vegetables when cooking. With a longer storage time, the shape, color, and flavor are preserved is a big plus for this method. The internal water content of vegetables is less than 5%, which is an impressive number. 

Image of vegetable sublimation dryer
Image of vegetable sublimation dryer

Through the information that we provide, it must have helped the reader to imagine the basic difference between these two methods. And also from that affirmation that the freeze-drying method brings more benefits to businesses and users. Therefore, the option of sublimation drying is something you should not ignore if you want to dry fruits and vegetables in large quantities for today’s industrial production.

How is the structure of SUNSAY sublimation dryer?

Currently, the sublimation dryer  with SUNSAY brand has been 100% successfully manufactured by Green Technology Joint Stock Company in Vietnam, meeting most of the needs of domestic and foreign customers.

✅ Vacuum pressure tank

✅ Heating unit for the product when it is frozen, pumped and heated for the product to perform the sublimation drying process.

✅ Deep negative refrigeration system to freeze the product and keep the water vaporized from the product when it is sublimated.

✅ Vacuum pump ensures a vacuum environment during the drying process.

✅ Electrical system controls the sublimation drying process.

How to choose the best vegetable sublimation drying technology?

No matter what product you buy, you need to choose a really reputable unit as well as provide products at an affordable price. Because a reputable supplier has a great role in consulting, supporting and answering all questions of customers about products. At the same time, it helps you find a quality dryer with the most outstanding durability and quality. A name that is always put on the top by customers is SUNSAY. 

These are vegetables after being dried with a sublimation dryer
These are vegetables after being dried with a sublimation dryer

The name SUNSAY Vietnam has now been and is the preferred choice of many businesses today when they want to use the technology of sublimation drying of vegetables. The company has been in the market for a long time and is a reliable address for all users looking for quality dryer products. As one of the leading brands in the industry, we have many favorable conditions to help customers receive optimal benefits: 

  • The most competitive price in the market because we do not sell through middlemen
  • Guaranteed product quality, genuine products 
  • Available in a variety of capacities to suit user requirements 
  • Receive enthusiastic advice from customer care staff 
  • There are many attractive after-sales promotions 
Industrial Sublimation Dryer
Industrial Sublimation Dryer

The above are the advantages and benefits when you use the technology of sublimation drying of vegetables and services at SUNSAY Vietnam. We are committed to bringing good quality, competitive price and guarantee to bring you satisfaction when buying sublimation dryer as well as other drying equipment at the company.

Especially at SUNSAY Vietnam, the staff is also very dedicated and answers your questions in the fastest time. Therefore, you can immediately call the company whenever there is information that needs assistance. Contact us directly via hotline +84 94.110.8888 to receive advice on vegetable sublimation drying technology. 

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