Best inert gas

I also still write a review about the device "WineSaver" and the very good function.
Here I will confine myself to that type of product, on the WINARO WineGaz cartridges.
This cartridge, or the content differs significantly from all other cartridges that I know from the market in Germany, which are offered (not only for wine!) To (attempted) preserving beverages.
These cartridges are filled with pure argon (as "food Gas") as inerting. And only this can be an argon / used for Oxydationsverhinderung inerting, all other gases work in the private scope is not, all other gases / gas mixtures are ineffective or in most cases even harmful at best / counterproductive.
There are several and different reasons, such as oxygen in the gas mixture (as z. B. CO2), which additionally promotes even the unwanted oxidation or are not totally inert gases, which then in the wine-solve in a short time and the taste and of course chemically alter wine. This change is sometimes in cheap white wine desired (by a CO2 mixture) because of the sour gas of wine sparkling (as acid) is what the application with more expensive wines is of course unthinkable and void.
Also, there are inert food gases as pure nitrogen, which does not lead to success, because nitrogen is lighter than air and therefore of course not displace the air from the wine surface, but is at best over the layer of air in the bottle, making it completely useless.
Also of course, is totally counterproductive to the use of N2O (nitrous oxide = laughing gas), which is used in the "cream" cartridges for foaming cream. Although this laughing gas costs only a fraction of the inert gas argon, but is for the preservation of opened bottles of wine or food residues chemically completely unsuitable.

This only works with a totally inert gas, which is heavier than air and is not for the Labware application ONLY argon.
Anything else leads to unnecessary teller and in most cases probably spoiled wine (radical).
CONCLUSION:
Who does not have the time, but my reading slightly longer versions, which extends also to buy my concluding remark:

The offered Argon cartridges (and only this) to meet 100% the purpose foods (radicals) and drinks (including wine, of course) from oxidation / before the rapid deterioration after opening (a bottle o. Ä.) To protect ,
ALSO, 100% buy recommendation. Maybe will 'times at larger sales, z. B. the preservation of food waste (also ideal) reduce the price.