ArT Wine PreserverWine Preserver Gas for Wine, Whiskey, and more, Argon Wine Presever for Wine Preservation, Argon Gas with Wine Bottle Stopper, Preserves White & Red Wine Up to 30 Days

I tried two wine preserver: this one (argon based) and another (nitrogen based). This one (argon based) is twice the price and does not work well at all...My wine was really oxidized after just a week

So far, so good, 36 puffs and no end in sight. Will see how far this bottle goes, shorter puffs on next one to test. This product works as advertised. Used it on all fill levels in bottles, with last smallest (100ml) amount after 5 days. No signs of degradation. Wines were pinot noir and chardonnay from vintages 2012-2016.This is a more economic solution to manage consumption than a Coravin, and frankly a Coravin takes counter space we don't want to donate. Also, the Coravin wine would be at ambient temperature rather than serving temperature (PN slightly above "cellar" - 60ish+, whites 10 degrees cooler). (Frig is too cold for red or white to drink, OK to store a treated bottle upright, remove and let warm. If a red is "flabby" at 75 degrees, there is a reason - too warm. If a white doesn't taste good warmer than frig temp, it isn't a well made wine.) Since we're not going to AC the house below mid 70's, the Coravin doesn't work. Maybe it could for you. In the absence of a "unit" Ar bottles work well.Argon is an inert gas, heavier than air so gravity is your friend (unlike old age). Not much is needed. Please be aware diffusion is a physical process that will eventually cause oxidization even for Argon treated wine because the top of the bottle still holds 21% oxygen (along with .93% Argon). For the technically inclined you can probably find the diffusion coefficients and do the arithmetic on the integrated diffusion equation to calculate a concentration curve. (Can't offer any help. No technical books.)I will be curious to see how Ar does with an old wine. I doubt it will be perfect because a 20+ year old wine opens in oxygen, fades over time. If it is enough to preserve a top bottle for 2 days, it wins.August 2018, forgot to update ... Got about 105 puffs from one can (no fewer, could have been a few more). This makes it a fair purchase at the listed price. Nothing has changed since I wronte this. It does keep fine wine for days. You should open the bottle, pour what you wish, spray Ar, recork without letting significant time elapse. If another glass is desired, repeat. Don't wait to apply the Ar to drink both (or however many) glasses.To the ArT team: Go Boilers!

Great product and exceptional customer service. They know how to keep it fresh!Keep in mind that it doesn’t take a lot to preserve wine. Spray really only just a second and that will keep your wine from oxidizing.

I sprayed the bottle I received into a small coffee mug, for about 17 seconds. I then lit a match and placed it inside the mug. The match stayed lit. Shouldn’t the argon put out the flame? In the companies YouTube video the match flame is extinguished by the argon. Makes me think I got a can of compressed air and not argon

I contacted the manufacturer and was told this is pure argon that can be used to store chemicals. I have serious doubts about it being pure argon. I used this stuff to try and prevent oxidation of amine compounds and they formed the CARBONATES after a while (not much but its there). This is probably ok for wine, but don't try and use it for chemical storage.