When the flavor and aroma are fundamental components, the refrigerator is not a good alternative |
BBC consulted several experts to know which products do not benefit from the low temperatures.
"Try to make the food last longer and do not appear in that period microorganisms consume and prevent the damage are the main reasons for resorting to a refrigerator," says Isabel Campelos, advisor to the Center for Research and Leatherhead Food Safety, in the United Kingdom.
As indicated, the factors affecting the shelf life of food without expire or damaged because they leave harmful fungi or other organisms are salt and sugar content, the amount of water in its interior, acidity, and how to pack them special treatment to which they may be subjected, as the smoking process.
Speaking to BBC World, Victoria Moreno, director of the Institute for Research in Food Sciences in Spain, adds that "the general principle of cold, when it comes to food storage is that prevents oxidation process ".
It is not a good alternative
For products where taste and aroma are fundamental components, the refrigerator is not the most appropriate. This group includes chocolates, nuts and some cheeses.In the group of cheeses they include those subjected to a particular biochemical process that allows you to get a very distinctive smell and taste. "Besides being like a stone if they get into the refrigerator, cold makes them lose their qualities," says Moreno.
Manchego cheese exemplified above, it is aged for years and goes through various conservation techniques that produce a hard, dry texture, and a strong flavor.
Consistency, texture and aromatic properties of nuts are paralyzed with cold, so it is also advisable to keep away the cold. The same goes for coffee and chocolate, smell and taste are lost in a refrigerator, because we must also consider that blend with the smells of other foods inside of it.
Not suit the cold
Campelos, meanwhile, adds the following foods to list and explain why.Bananas, mangoes, pineapples, papayas and other fruits from subtropical climates are very susceptible to cold.
Cold temperatures weaken the tissues and prevent further develop normal metabolic processes that characterize them.
This will cause damage to the surface, internal discoloration, water appearance, taste loss and inability to continue its natural ripening process.
Butter - Although it is a product of milk origin, does not behave like milk. This is because there is too much fat in their composition, which makes it not particularly prone to microbial growth. This is the case especially with the butter has salt. I did not, have less protection against these organisms.
Bread - Low temperatures cooler accelerate the dehydration process of this product. When they are exposed to cold, some of the molecules that compose -fécula and gluten-modified, water is separated from the starch and this makes the substance reverts to its original form and harden.
Eggs - no need to keep them in the refrigerator because it does not generate any particular benefit, what is important is not to consume after the expiration date. After that time, its natural defenses are lost and increases the risk of salmonella contamination, which can penetrate the egg and grow inside.
Onions and garlic - These vegetables are dried naturally, therefore, keep in the fridge useful for generation of moisture and accelerates oxidation process.
Papas - "Potatoes have to be stored in a cool, dry, dark place. If they are exposed to low temperatures, the amount of sugar they contain may increase, "the BBC explains Helena Gibson-Moore, of the British Nutrition Foundation.
He adds: "This, in turn, can cause high levels of a chemical called acrylamide, which is harmful if potatoes are fried or baked at high temperatures."
Overall, experts also suggest that it is important to consider that not everything is all about food, because there are many factors that can affect their status and duration, as variations in the amount of specific ingredients They are including manufacturing and process used by different companies that produce them.
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