Storing food in a vacuum: advice, times and advantages
Knowing how to preserve food in a vacuum is a good starting point for those who want to keep food longer: let’s find out more!
Storing food in a vacuum is one of the best techniques to use to keep its characteristics unaltered nutritional, organoleptic and the flavour. The vacuum, if done correctly, allows a good preservation of food, going to extend just the taste and freshness. In this way, in fact, oxidation and the proliferation of bacteria and other microorganisms are prevented and consequently food spoilage is limited.
Let’s try to understand better what it is!
The advantages of the vacuum
The vacuum allows you to clear the air present inside a container or bag by suction. In this way the food can be stored well 5 times longer compared to the standard storage time.
Opting for this storage method, suitable for both fresh and cooked foods, allows you to save money and reduce waste.
How is vacuum-packed obtained?
Forming the vacuum is really simple, but two are needed instruments: the machine for vacuum packing and bags. The first, also known by the name of vacuumfavors the exit of the air from the bag which is sealed by heat sealing.
As for i bagsinstead, they can be of various types: in aluminum or polyethylene, smooth, single or they can be found in special rolls to be cut. Some bags are also suitable for vacuum cooking.
It is important to point out that in addition to the bags there are also special jars or containers for those foods that would be difficult to store in the bags such as soft cheeses or soups.
Food storage times
Keep fruits and vegetables vacuum allows you to double the preservation time, whether the foods are fresh or cooked. Vacuum-packed bread can be kept for up to 7-8 days, while the carne and the pesce it kept up to 5-6 days.
The increase in storage time for i cheeses: the fresh ones can be kept for 5-6 days, while the seasoned ones even for 4-6 months. The retention time of cured meats and cold cuts reaches 20 days.
Special hermetic caps allow you to eliminate the air even from the open bottles of winebut in this case the quantity of air eliminated from the bottles is less than that extracted from the bags.
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