After the process of braking, the beer is in contact with the acid (or the air containing as known)
about 21% O 2) only damages and leads to a shortened storage time of the product.
To avoid this allows the application to dissolve the so-called "bottle" from the protective gas, for example, CO 2, N 2, or their mixture.
This is especially important if the beer was saturated with carbon dioxide or nitrogen. Protected Gas Over the surface, beer not only isolates the drink from oxygen, but also prevents the evaporation of gases solved in it.
Example of use Gas mixture As a protective atmosphere, it can serve as a process of filling bottles under pressure of gas, as well as the process of wasting beer at retail.
Beer in a protective atmosphere.
Before the beer is spread by bottles, the air in them is under pressure replaced by a protective atmosphere. Usually this atmosphere is a specially selected mixture of carbon dioxide and nitrogen for a particular beer variety. If it is a beer saturated with nitrogen, then without the application of the gas mixture simply don't turn away, otherwise the gases will not be kept in the beer in a solved state. In this question, most of the large English and many American beer companies fully trust the equipment and experience of the WITT company.
Gas mixing systems of WITT and Gas Analyzers
The standard WITT MG series gas mixing systems allow to produce from 50 to 500 m3 gas mix per hour. The percentage ratio of components is set depending on the need from 0% to 100% with accuracy ± 0,5%. The change of settings is performed depending on the system, manually or by means of electronics. In addition, the produced mixture can be controlled by the WITT gas analytics, which allows to ensure optimal quality.
Use of gas mixture in the brewing of beer
The use of a pressure-to-pressed protective gas with the brewing of beer is no longer a news. This method is known since the late 50s, when they began to brew beer on bottles under pressure.
The advantages of this technology are obvious: it does not need the use of expensive pumps, beer gets a good “chop” from the pin and, as the contact with the air is excluded, the quality of the drink in the open bottle remains unchanged until the last drop.
However, pure CO2 has a very significant disadvantage compared to gas mixture. If the bottle is a large distance from the beer column, then the pressure required for the necessary productivity of the column often exceeds the pressure much, prevents the appearance of the beer (comparative pressure). This leads to the oversaturation of the beer CO2 and its loss when dissolved, since it in this case is very strongly bound.
For example, if you apply a gas mixture of 50% N 2 and 50% CO2 under pressure of 3 bars, then half pressure (1,5 bar) is provided respectively with nitrogen and half carbon dioxide. The path of change of the percentage ratio of N 2 and CO2 in the gas mixture can optimize the concentration of gas dissolved in beer. And this is regardless of what pressure it is necessary to carry out the dissolving beer.
Of course, you can buy a ready gas mixture. But it will be more expensive to you than separate gases. In addition, for different beers different mixture is needed, i.e. it is necessary to change the concentration of components.
All these problems are easily solved by acquiring clean carbon dioxide and nitrogen in ballons and submitting them to the WITTKM20 gas mixers, specially designed for this purpose. These gas mixers will help you produce different, designed for your product gas mixers.
You can purchase these gas mixers as a component of the complex system - in a stainless steel body for steel installation. This system includes a pressure regulator, a manometer and a protective valve. Everything necessary for installation and introduction into operation is included in the supply set.
