How to preserve food for a healthy diet

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Fecha: 14 - Sep - 22
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Preserving food well is essential for a healthy diet.

For this reason, it is becoming more and more popular to preserve air-free packaged food, in recent years, thanks to the appearance in the markets of devices of a contained measure at an economical price, it is becoming a technique that is increasingly within the reach of families. and individuals.

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How can food be preserved without air?

Vacuuming food is a simple way to remove almost all the air present in the food container, particularly oxygen, which is the culprit for oxidation and bacteria formation. To preserve vacuum-packed food, more or less robust plastic bags are needed, in the shape of a "mouth" that are inserted into the vacuum machine which, thanks to a pump, sucks in the air present, making the bag adhere to the food and once all the air has been removed thanks to a hot thread, it seals the bag watertight.

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Advantages of preserving food without air

Vacuum storage offers multiple advantages. Firstly, the shelf life of food is increased, three to five times longer than normal storage in the fridge. Secondly, it guarantees the healthiness of food, since it prevents the development of aerobic microbes, which need air to develop, thus slowing down the oxidation process of food, which alters its organoleptic values.

In addition, vacuum-packed foods preserve the freshness, aromas, consistency and flavor of the food, so they will not be altered by external agents. It saves money from an economic point of view, since it minimizes food waste. The time factor should not be underestimated: with vacuum packaging you can shop and cook on days when you are free, and then package the food in convenient, ready-to-use individual portions.

That's not all: with the special machine it is also possible to vacuum pack cooked food: therefore, recipes can be prepared in large quantities and then packed in smaller and more practical portions when preparing a lunch or dinner.

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Storage times for fresh air-free packaged food in the refrigerator

Vacuum preserving allows food to last as long as other types of preservation. In fact, there are storage times for vacuum packaging that must always be taken into account.

Fresh meat: with vacuum storage, fresh meat is kept in the fridge for a minimum of 6-8 days, compared to two normally, which allows you to buy once a week instead of two.

Sauces: vacuum packed in the fridge, they last up to 6-7 days or can be frozen up to 2-3 months.

Sausages: For this category of food, vacuum storage can make a significant difference. In fact, in a short time, sausages risk acquiring an unpleasant taste and changing color, especially on hot days. With vacuum storage, on the other hand, the time can be extended up to 6-8 months.

Fresh fish: vacuum packed in the fridge lasts up to 6-7 days.

Cheese: these are products that run the risk of deteriorating quite quickly. Thanks to the vacuum, on the other hand, the fresh ones can be kept for a couple of weeks, the semi-cured ones for around a month and the cured ones for 2-3 months.

Fruits and vegetables: vacuum storage extends the shelf life two or three times, thus keeping the products about a week.

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As for foods that should not be stored in the refrigerator, these are the vacuum-packed storage times:

The bread, whose average duration is about two days, stays fresh for up to 8-10 days without air. Dry goods, such as nuts, breadsticks, cookies, etc. that fear moisture and lose friability and soften, with vacuum, keep their organoleptic characteristics unchanged for several months.

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Airless preserved foods can also be frozen,

the lack of air will prevent frost from forming on the food and prevent freezer burn and loss of taste and flavor.

Homemade pizza doughs and focaccias: they can be vacuum packed in already cooked portions so that it is only enough to take it out of the freezer and heat it in an oven or toaster

The machines to remove air and preserve food

In the mid-range, the characteristics to highlight: depending on whether the food is dry or wet. There are devices that are equipped with a tube and a wine stopper that are used to extract the air from the bottles that are being bottled, which makes storage more durable. It also has an integrated cutting device, with which you can cut a bag according to the size you need.

In the medium-high range: they are usually fully automatic and equipped with advanced technological features, which allow you to achieve practically professional performance even at home. It has a double suction pump, adjustable suction power and double welding bar. It is possible to choose between three different sealing configurations and it is equipped with a roll compartment with a bi-directional cutter.

In the professional range: for its part, it comes from a professional range and is a vacuum storage machine that offers a technological kit designed to obtain professional results, thus responding to every need. It has a double suction pump, capable of guaranteeing a longer duration of the device over time. The value of the flow, equal to 18 LT. / min, allows a reduction of working times.

This machine is equipped with three specific sealing programs, depending on the moisture level of the food. It also has two speed levels, which allow you to better control the state of the vacuum, allowing you to store even the most delicate foods. Among the many functions, it allows automatic or manual sealing, fast marinating cycle, a sensor that allows you to check the presence of air in the bag.

This machine is also equipped with the wet button, which allows you to safely suck up even meat or fish that release liquids: the suction stops at the right time and you can check that no liquid is sucked up.

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Until next time, CIAO 🤩

 

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