The girls found the shelf life under these covers, it turns out this is a wonderful thing. Shelf life of some products, of their huge number
Types of products Shelf life without VAX system Shelf life in VACS system
Freshly prepared first and second courses 2-3 days 10 days
Freshly distilled juices 2-3 days 20 days
Salads 2 days 10 days
Milk, sour cream, cottage cheese 3-4 days 12 days
Cheese 8 days 30 days
Raw meat 3 days 9 days
Sausage 4 days 20 days
Greens 3-4 days 20 days
Pasta 180 days 360 days
The shelf life of products depends on their initial freshness. "VAKS" is a multifunctional system. Over the years, we have accumulated rich experience in food preservation. It turned out that vacuum lids are successfully replacing metal lids that are used for canning. Conservation, in contrast to the storage of fresh and freshly prepared products, involves thermal (pasteurization, sterilization) processing of both products and cans.
Simplicity, reliability, the ability to use one lid up to 200 times within at least 5 years - these are the advantages of sealing cans with vacuum lids when preserving. After opening the can and consuming some of its contents, the can can be resealed with a vacuum lid to keep the product longer. In this case, the products from the canning mode go to the storage mode. Long-term practice has shown that there are no problems when preserving products such as compotes, juices, jams, ketchups, lecho and much more, but pickling cucumbers turned out to be problematic, but as users of the VAX system write, if you follow our recommendations, then everything works out well. In any reference literature, it is recommended to pickle cucumbers fresh from the garden. They must be soaked in cold water for 5-6 hours to remove air from them. It is recommended to pierce the cucumber with a knitting needle in several places, or cut it lengthwise to half. It is better to soak cucumbers in a marinade prepared for pickling. Place them in a jar with the notched part up and pour over boiling marinade. After two hours, drain the cooled liquid and refill the jar with boiling marinade. After 15 minutes, repeat the last operation and immediately seal the jar with a vacuum lid.
When preserving all types of products, the jar must be underfilled to the neck by 3-4 centimeters, because when the air is pumped out with a vacuum pump, a vacuum is created under the lid, as a result of which the water begins to boil, foam and rise up. The evacuation should be stopped and repeated after the foam has settled. Three or four strokes are enough to seal the jar with a vacuum lid. Do not allow liquid to enter the pump.
VAKS is not a panacea for all ills. This system must be approached wisely and learned to use it. Many who have been using the VAKS system for canning for several years have already got used to and have forgotten about the existence of disposable metal lids. The firm "Istok" has developed original manual vacuum pumps NVR-3 and NVR-4, which provide vacuum up to 80% deep, as well as 3 types of vacuum covers: KVK-70, KVK-82 and KVK-89/100 (KVK 100). KVK-70 - designed for sealing small cans of all types with a neck diameter of up to 70 mm. KVK-82 - for capping ordinary and threaded cans with a neck diameter of 82 mm. KVK-89/100 or simply KVK-100 - for sealing threaded cans with a neck diameter of 89 and 100 mm. The capabilities of the VAKS system have not been fully explored. One woman with Fr. Sakhalin told in a letter about her experiment: "... they slaughtered a goat, chopped the meat into pieces, put it in jars and sealed it with vacuum lids ...". The meat, in her words, is perfectly preserved until the "last piece". Unfortunately, she did not write how long and where the meat was stored. Another user in his letter recommends "homemade wine, after it has fermented under the system, pour it into cans and seal with vacuum lids." It is recommended to pump out 2 or 3 times, while a large amount of gases are released, which include fusel oils, acetic acid and many other processed products. The bouquet of wine only benefits from this.In the west, they even make special vacuum plugs through which gases are pumped out of wine bottles. For those who store food in the cellar, beware of mice! There are cases when mice gnawed valves on the covers. The tightness was broken and the product deteriorated Try it, experiment. Please report your successes, as well as failures, to the Istok firm. We will definitely share your experience with other users of the VAKS system.
Procedure and features of work with the "VAKS" system
1. Check the jar for cracks, chips, shells both on the jar itself and on its neck. Banks with the indicated defects are not suitable for use.
2. Place the lid on the neck of the can.
3. Insert the pump firmly into the recess in the cover.
4. To create a vacuum, it is necessary to move the stem up and down with the handle until it stops. When canning, it is enough to make from 3 to 6 strokes, and in storage mode from 15 to 20. The number of strokes depends on the filling level of the can. However, the more pumping done, the deeper the vacuum. In this case, the stem begins to spontaneously drop sharply and hit the cover. Don't let this happen. The cover may break.
5. To open the can, lift the edge of the valve on the lid with your finger, so that air can noisily enter the can and the lid can easily open. Do not use metal or other sharp objects to open the valve so that risks appear on the valve seat.
6. As soon as it gets dirty, and in all cases after canning, the pump must be flushed with warm or hot water, for which unscrew the nut and remove the stem from the cylinder. After flushing, lubricate the cuff with a thin layer of petroleum jelly.
7. As the cover becomes dirty, it is necessary to rinse it, while it is not allowed to pry the gasket with sharp objects. The valve can be easily removed by finger pressure.
8. If the movement of the rod becomes stiff, the pump must be disassembled, thoroughly rinse the cylinder and the cuff, and lubricate it with a thin layer of petroleum jelly.
9. During long-term storage, the pump cuff may become “coarse” and partially lose its elasticity. We recommend keeping it in boiling water for several minutes, but if this does not help, then it must be replaced. In order for the cuff to retain its elasticity for a long time, it must be lubricated with Vaseline during storage.
10. To check the tightness of the system, we recommend pouring water from the tap into the jar, underfilling 3-4 cm, put on the lid and pump out the air from it. Then turn the jar upside down. If air bubbles seep from under the valve cover, the cover is unusable. In practice, this happens very rarely. We recommend that you remove the valve, rinse it and the seat on the cover and repeat the test. If bubbles seep from under the lid gasket, then either the lid or the can is unusable. In the vast majority of cases, this is due to the fact that there are dents, chips, risks, cracks on the neck of the can. Try to put a lid on an already tested jar, if in this case bubbles appear, then the lid is unusable.