Pop & Repour: Preservation Experimentation

7 02 2019

By Peter Vetsch

And – we’re back.

When I posted the review for Vinebox Day 12 as we polished off our daily reviews for two consecutive holiday wine calendars, I fully intended that the blog would go dark for a little bit while we rested our typing fingers and regrouped.  I did not intend to then catch bronchitis and a cough that wouldn’t die in a house full of plague and contagion, but that’s what happened, leading to a much-longer-than-anticipated blackout period to kick off 2019.  However, I’m back on my feet and Pop & Pour is officially back in business with some compelling content in the wings to kick off our writing new year, starting with a new and intriguing solution to one of my favourite wine questions:  how best to preserve an open bottle.

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I am an unabashed wine preservation geek.  I own a Savino (and it works! at least for shorter storage periods).  I have tried, and ultimately discarded, a number of vacuum pump oxygen-expelling gizmos (which never quite get all the air out and quickly cease to become airtight themselves, thus undermining the whole enterprise).  I have written a lengthy series of real-time preservation reports about the Coravin as I gradually drained bottles with one over the span of six months (a series of posts that continues to get regular views in Iceland to this day, though I could not tell you why).  My current preservation go-to is an argon dispenser, which places a blanket of inert gas over top of the remaining wine in the bottle and acts to prevent further oxygen contact, as oxygen is the primary agent that leads to wine deterioration over time.  I thought I was fairly up to speed on the various different ways to keep wine from spoiling, but little did I know that a new entrant had recently joined the fray.

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The Repour Wine Saver is ingenious in its simplicity.  All wine preservation tools operate by preventing oxygen access to wine in some manner or another.  Some of them fail because they rely on physical or mechanical processes that grow less efficient over time as materials change or fail.  The Repour has no moving parts or components that can get worn down over time, particularly because it’s not meant to be used over time: it’s a single-use disposable bottle stopper that retails for $3-4 CAD, keeps a single bottle of wine fresh for as many times as you care to reopen it, and is then thrown away.  It works not by expelling or blanketing the oxygen in the bottle, but by absorbing it.  The interior of the stopper is crammed full of oxygen-absorbing material (of a type that is also used to help keep food fresh during transit) which, once the cover tab is removed and the stopper is placed in the bottle, starts pulling the oxygen not only out of the air inside the bottle but also out of the wine itself.  No oxygen = no spoilage. Read the rest of this entry »

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The Great Coravin Test, Part 1

19 07 2015
Ladies and gentlemen:  the future.

Ladies and gentlemen: the future.

It is an age-old problem:  what to do with the rest of a bottle of wine if it isn’t all consumed in an evening?  Unless being used to let tight young wines breathe, oxygen is generally the enemy of wine, and once the atmosphere gets its claws on the liquid in a bottle, the results aren’t pretty:  the wine gets flat and stale, brightness and flavours fade, and any distinguishing characteristics are quickly lost.  You can help slow this aerobic inevitability by putting the wine in the fridge overnight, but I always still noticed a difference in the bottle the next day, a slight but undeniable decline.

There have been a few standard approaches invented for dealing with the leftover wine oxygen problem, each effective to different extents.  You can buy a vacuum pump that fits into the opening of the bottle and (at least theoretically) manually sucks out the offending oxygen, leaving a decay-free zone inside the bottle.  This may sort of work at times for short durations IF the pump actually makes an airtight seal with the bottle, which it often doesn’t.  You can instead opt for a separate narrow storage vessel that has a sort of buoy-like floatation device engineered to exactly match the interior circumference of the container; you pour your wine in, plop the float on top and add a lid for good measure, keeping the surface of the wine from any immediate interaction with oxygen.  This is better and more consistent than the vacuum for short stints (I have one, the Savino, which I use for weeknight wines) but not that trustworthy for more than a day or two.  Then there’s the gold standard:  argon.  You pump a little argon gas into the heel of your bottle (from a purchased canister or a fancier system like my Pek Preservino) and, since it’s inert but heavier than air, it forms a harmless protective layer over top of the wine that prevents oxygen from accessing it.  I have left a wine under argon in the fridge for a week and it’s been good as new.

FullSizeRender-71These preservation systems all tackle the problem of wine degradation from different angles, and yet they all share one key thing in common that puts a ceiling on their effectiveness:  they all start with an open bottle of wine.  No matter what tricks you try to keep oxygen away from your precious liquid, once you pop that cork and pour that first glass, you have exposed your wine to the air and the decay clock starts ticking.

But what if you didn’t HAVE to open the bottle?  Could wine be preserved indefinitely if you could somehow access it while keeping its bottle fortress intact?  Enter the Coravin. Read the rest of this entry »








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