How to properly store sunflower oil?
Any housewife uses sunflower oil when preparing various dishes, because it is used not only for frying food, but also added to many vegetable salads. It is also used for industrial purposes in the manufacture of cosmetics. But few people thought about how to properly store this product so that it does not lose its useful qualities.
How much is stored?
Vegetable oil contains a lot of nutrients:
- omega 3;
- omega 6;
- fatty acid;
- vitamins A, E.
Due to this composition, the product is very useful for the human body, but this is the case if the ingredient is of high quality and the expiration date has not yet expired. Now there are many cheap products that practically do not have the above useful qualities, but at the same time the preservation was also carried out incorrectly.
Let's figure out why you need to know the shelf life of vegetable oil. Some people think that oil can be stored indefinitely, but this is not true. Like any other product, vegetable oil deteriorates over time. Further use of such an ingredient is prohibited, because there are no useful properties in it, but harm to the body can be done. Do not forget that the conditions and rules for storing products depend on the type of vegetable oil. Consider two main types of vegetable oil.
refined
This type of oil differs from other types of similar products in the way the oil is extracted. It is extracted using various chemical components that contribute to the release of oil. After such a procedure, organic substances are removed from the product, as a result, the purest product remains without any impurities. This ingredient has a light yellowish tint, and when consumed does not emit any aromas, and also has no taste. It can be consumed when frying, because it does not emit carcinogens under the influence of high temperatures.
You can store refined oil for a long time. But when buying, pay attention to the fact that it is not cloudy, and also does not have sediment.
If, when frying vegetables in such oil, a slight smoke appears, it means that oxidative processes have already begun in it, such a product should be excluded from the diet.
The shelf life of an unopened container of refined oil is about two years, but this condition is met if:
- access to light radiation is completely excluded;
- the temperature regime varies from +5 to +20 degrees;
- the ingredient does not come into contact with liquid and metals.
From the moment the container with oil is opened, the shelf life is about 14 days. But if you place the container in the refrigerator, the savings will increase to 30 days. It is also possible to store the oil in a freezer, the storage period in such a place is 365 days.
unrefined
This oil is a pure product that has a rich hue and a pleasant aroma. This ingredient is made by several methods, but cold pressing is considered the most common.In this case, the seeds under the pressure of the press release oil, which is then filtered. The finished product is dark brown in color and should be consumed within three months.
But also a similar ingredient can be obtained in another way. Sunflower seeds are pre-roasted and then pressed and filtered. Experts do not recommend keeping unrefined oil for longer than 90 days from the date of production, and when using the hot pressing method, it is able to maintain its beneficial qualities for 10 months.
Since the opening of the container with oil, the shelf life of products is significantly reduced, the interaction of products with oxygen forms free radicals, which contribute to premature aging of the body, as well as the formation of cancer cells.
Basically, this oil is used as a dressing for vegetable salads. Many housewives use it when frying food, but this is strictly forbidden, because during heat treatment the ingredient is able to release a large amount of carcinogens. In this case, there will be no benefit to the body, only harm.
- Store this product in a dark place.
- The optimal temperature regime for the safety of products is from +5 to +20 degrees.
- An open container of oil can be stored for 30 days. If the contents in the container have changed their shade, and the taste and aroma have changed dramatically, then it is strictly forbidden to use such an ingredient in food.
Storage rules
Many housewives purchase products in plastic bottles with a capacity of 5 liters.The question arises - how to store such a quantity of products at home after opening the package.
Temperature
The ideal temperature for saving vegetable oil is from +5 to +20 degrees. After opening the package, screw the lid tightly with each use and put it in a cooler place, that is, away from the gas stove. Under the influence of high degrees, harmful oxides are formed in the oil, which can harm the body.
It is undesirable to store the ingredient in the refrigerator for a long time, because it can become supercooled there, which will lead to loss of nutritional values. In this case, the temperature regime in the refrigerator should vary from 0 to +11 degrees. If it is not possible to maintain such a temperature, then place the product on the refrigerator door, where it will be less exposed to low degrees.
Place
The best environment for storing vegetable oil is a cool and dark place. For these purposes, you can use the basement or refrigerator. In the apartment, you can store products in a closet with closed doors, on the balcony, the latter option is best used in autumn or spring. It is strictly forbidden to keep oil near heating devices (fireplace, stove, radiators, heater).
It is undesirable to keep a container with oil next to products that can emit pungent odors, because it has the ability to absorb foreign odors.
Tara
The material from which the container is made significantly affects the shelf life of products. To extend the shelf life of sunflower oil, experts recommend keeping products in glass containers.If the ingredient was sold in a plastic bottle, then it must be poured into a container made of glass with a small neck diameter. Do not forget that you need to store oil even in such dishes in a dark place and at the right temperature, then you will increase the shelf life of products up to three to four months. To make the oil less in contact with the sun's rays, you need to use a container made of dark glass material.
If you purchased products in a store or on a bottling market, then you cannot use metal containers to store products. The more oxygen gets inside the dishes, the faster the product will deteriorate. If it is not possible to pour the ingredient into glassware, then the container in which the product was sold can be wrapped with foil material.
When buying vegetable oil, pay attention to the packaging, where information should be indicated:
- gross and net weight;
- nutritional and energy value of this product;
- expiration date;
- storage requirements;
- address and name of the manufacturer;
- product composition.
Ways to extend the shelf life
To increase the shelf life of vegetable oil, experienced hostesses resort to folk methods.
- A few beans are placed in a recently opened container with contents, after which the lid is twisted as tightly as possible. In this case, you can store the oil for 3-4 months.
- A certain amount of salt is added to the oil. For 1 liter of products, 2 teaspoons of loose mixture will be required, thus, the shelf life will increase by 3-4 weeks.
- You can replace salt with bay leaves (1-2 pieces per 1 liter), sprigs of thyme, rosemary.At the same time, not only increase the shelf life of products, but also give the ingredient a pleasant aroma. When adding the above ingredients, the contents do not need to be mixed, it is enough to tightly seal the container and place in a dark and cool place.
- Freezing the product is considered an effective remedy. It is recommended to subject refined oil to such actions, unrefined products lose a large amount of vitamins under the influence of low temperatures. First of all, pour the liquid into portioned containers (small plastic bottles, bags with a tight locking design), and then place it in the freezer. Vegetable oil in such a place does not completely freeze, but only thickens a little. The shelf life is 1 year. It is strictly forbidden to re-freeze the ingredient, otherwise no useful substances for the body will remain in the oil.
You will learn how to choose sunflower oil from the following video.