All the nuances of choosing a cooler bag

To keep the perishable products fresh outside the home refrigerator in the summer even during the day will help cooler bag; How to choose it among the many specimens offered by the market so as not to disappoint and disappoint?

Product Design

Whatever we choose, first of all we always pay attention to the appearance of the product. In the case of a refrigerator bag, this is:

• size, volume;
• the form;
• colors.

Small bags about 20x15 cm in size - an isothermal lunch box in which the big dinner for one person will be located. The largest ones have a volume of 45-50 liters, in which a “feast for the whole world” will fit. You choose which capacity you need a bag.

The shape of the cooler bag can be tall, wide, oval, in the form of backpacks, handbags, beach bags, children's backpacks. You define: on your back you will mainly carry it, in your hand or take it with you when traveling in a car.

Coloring bags most diverse: restrained, sporty, elegant, beach, children, and in the box and striped. Choose according to taste and purpose.

Determine the quality

The functionality of a refrigerator bag depends on the materials from which it is sewn, what it is equipped with. When choosing, focus on:

• outer material;
• internal material;
• the thickness of the insulating material.

High-quality thermo bags are made from dense strong fabrics - nylon, polyester, material based on PVC. Some manufacturers, saving on textiles, offer products from cotton fabrics. The material should be water-repellent, easily washable, wear-resistant.

The inner layer of a quality bag should be made of thick foil-reflective material. Often, manufacturers instead use the usual multi-colored polyethylene film. Inside the fabric must be waterproof, the joints are tight.

The insulation material is foamed polyethylene, covered with foil on one or two sides, the thickness of which varies from 0.4 to 2 cm.The thicker the walls, the slower the heat transfer. Some manufacturers produce bags without an insulating layer at all. A product with an insulating layer up to 0.4 cm keeps the cold for only 2-3 hours even at a low outside temperature, 0.8 cm - maximum 8 hours.

A quality bag is equipped with a velcro flap covering the zipper to prevent air circulation.

Conveniently, if there are also 2 compartments for products. Pay attention to how reliable the grip is, whether there are adjustable straps and a soft pad for the shoulder.

Leading manufacturers give warranty on the bag fridge 3-5 years.

With or without battery?

To keep the cold as long as possible, use cold batteries. Thermo bags are sold with or without batteries. If the product you like is not equipped with batteries, you can buy them separately.

The battery is a airtight container, filled with viscous saline content, slowly defrosting, painted in blue "frosty" color. It is important that the batteries are made from food material, as they will come into contact with food.Usually, 10 g of bag volume requires 600 g of cold battery.

The best are batteries in solid plastic packaging, especially gel cold / heat.

To accumulate cold, they must be placed for about 12 hours in the freezer of a stationary refrigerator, to keep warm - hold it in hot water.

It is recommended to place large batteries at the bottom and under the lid of the bag, small ones along the walls.

Before loading products with a bag-thermos must be cooled in any way, for example, holding in it some time a bottle of frozen water. Products are cooled or frozen before loading. With a nominal load and use of batteries according to the instructions, a thermos bag may have a temperature 15º below the ambient temperature.

Isothermal bag is used not only during travel. They take it to the store, planning to buy frozen food. You can unload into it the contents of the freezer of a stationary refrigerator, and without worrying about the safety of products, defrost it and wash it.There are situations when the home refrigerator does not fit the products; a thermos bag will come to the rescue, just put it in the coolest place. Sometimes it is necessary to buy medicine at a pharmacy, which outside the refrigerator can be no more than 1 hour, and a cooler bag will help out here.

Some housewives prefer to have 2 isothermal bags of different sizes for different tasks. Such a handbag can be easily do it yourself.