Sublimated - this does not mean unnatural

Today, freeze-dried products are becoming more popular. First you need to understand what sublimation is? In physics, this means the transition of matter from solid to gaseous state. For this to happen with water, low pressure and low temperature are necessary. The technology of sublimation was known for a long time: thus, representatives of ancient tribes left the fish in the sun, due to which it completely dried up and could be safely stored indoors, while remaining a nutritious and tasty product. In the middle of the last century, sublimated products were manufactured by scientific research institutes for the needs of astronauts. A little later these products entered the diet of geologists and tourists. Today sublimated - it does not mean expensive. So, in the US, the movement becomes increasingly popular, the main motto of which is the assertion that sublimates are healthier food.

Technology

Turning a product from ordinary to sublimated is not such a simple matter as it seems at first glance. It is necessary to observe special conditions. So, food is frozen to the lowest possible temperatures, water becomes ice, but the crystals do not destroy the cell walls. After that, the products are placed in vacuum chambers, where under the influence of low pressure the ice evaporates, turning into steam. In this case, only 3-4% of moisture remains in the product. Then the finished product is packaged in a sealed container, injecting nitrogen. Due to this, sublimated products are less exposed to the decay process. This processing process can be carried out at home, but an alternative method of preserving food will require a lot of effort.

Advantages of processing technology

• Sublimated means that it is not subject to heat treatment, that is, it is a product that has almost completely retained all the nutritional properties of the fresh product. It even retains its unique taste and special appearance.
• In the process of technology, no artificial additives that enhance taste are used. So, the sublimated juices from beets are much more tasty freshly squeezed - in them and so the taste properties are expressed quite brightly. Therefore, such products are used as a basis for baby food.
• Such a complex process of processing can withstand only really fresh products, so you can be sure that you are buying quality food.
• Long shelf life.
• During the trips and long trips, the question of extra things in bags is especially acute. And make nutrition balanced in the road becomes impossible, because then the package with products will be unaffordable. It's another matter if you replace each product in your luggage with a sublimated one. This will not only satisfy the taste preferences of travelers, but also relieve extra weight.

Coffee-sublimate

By the way, for connoisseurs of an invigorating drink. This product processing technology is also widely used. Soluble coffee is now slightly improved: there was a freeze-dried coffee, the price of which is also slightly higher than the usual cost of a jar of soluble powder. Dense crystals in the form of pyramids are made using the technology of "hot freezing". But this type of coffee belongs to the elite, because for its manufacture, artificial flavor enhancers are not used .