Canned food: can it be consumed?

Surely on more than one occasion you have wondered if you can drink the water from cans of asparagus or if the foam generated by the canned chickpeas will be harmful to your health. Well, in this article we are going to try to clarify all those doubts so that you know what you can and what not to consume when you are in front of a preserve, either in a can or in a bottle.

The preserves contain inside what is known as covering liquid which is used to preserve food. These are not harmful nor do they carry any health risk. If your question is to know if they can be consumed or if they can contain preservatives or other elements that are better to eliminate, then we will try to clarify it.

In the case of vegetables, the covering liquid usually contains water, salt and some ascorbic acid (less than 0.025%), which is used so that the vegetables do not lose their color in the light that enters through the glass. Vegetables are usually boiled in their own containers with this liquid, which means that the water in the container is nothing more than the water in which they are cooked. This liquid therefore contains all the vitamins and minerals of the food and therefore can be consumed.

Vegetables are usually preserved with sodium chloride, something totally innocuous that will simply add more salt to the food. Therefore, it should not be abused in its consumption. Pickle or vinegar for vegetables or some meat products or brine (also for vegetables) are other ways to preserve food.

Many people’s theory of throwing away the canned liquid is due to acidity of these in some cases, as in some cases with artichokes, green beans, asparagus or legumes, whose pH is very high, and can be processed correctly at high temperatures or by adding citric acid or lemon juice, in the latter case affecting the flavor of the product and it is preferable to discard it.

The broth from canned asparagus, for example, is recommended for making soups or slimming juices due to its diuretic properties.

Liquids used to make canning also include syrup, fruit juices, vinegar or lemon, salted water, syrups, pickles or oils.

Pickled sauce can also be used to make numerous recipes.

How should canned food be consumed?  photo: bigstock

What is the foam that forms with chickpeas?

When mixing the liquid that the chickpeas carry for their conservation with the water, a white foam is generated by the action of preservatives.

The covering liquid It is usually gelatinous, the result of the mixture of the water used for preservation and the starch released by this legume during the cooking process..

Although its appearance is not the best, you should know that it does not pose any health risk or is harmful and, therefore, it is not necessary to rinse the chickpeas to remove this liquid. You can consume them with it.