Which corks and closures work, and which do not?
A Timeless works on natural cork and on agglomerated cork such as Diam. On a screw cap it only works with a Coravin Screw Cap fitted. With a plastic synthetic cork you can still pour, but the hole no longer closes and the wine oxidises. A glass stopper is a no-go: it damages the needle permanently.
Coravin, FAQ and support: Wine, Bottles and Closures
How many glasses do you get from one argon capsule?
Coravin reckons on up to 15 glasses of 150 ml with a Timeless. If you pour 125 ml, that works out at around eighteen glasses, although every pour also uses a little extra gas. Coravin recommends simply pulling the cork for the last glass, which saves argon.
Coravin, FAQ. The conversion to 125 ml is ours.
What does a glass from a Coravin cost?
Only the argon, since you had the wine anyway. With a capsule price of just over nine euros, that comes to about 41 cents per 100 ml glass, 51 cents at 125 ml and 61 cents at 150 ml.
Our own calculation, using the capsule price from Coravin Nederland
How long does the wine keep afterwards?
Coravin itself talks of weeks, months or even years, and mentions bottles that were tasted again more than twenty years after the first pour. We put it more cautiously: that is a manufacturer's claim, and there is no published independent research that confirms it over such periods. Count on months with a good natural cork, and take the promise of years for what it is. For a screw-cap bottle with a Coravin Screw Cap, Coravin itself is not consistent either: the Dutch site says three months, the American product page six.
Coravin, Timeless Systems support and the Screw Caps product page
Three+ or Six+: which one do I need?
They pour in exactly the same way: the same needle, the same argon, the same handling. The difference is in the box. With the Six+ you get three argon capsules, six Coravin Screw Caps and a carry case, plus a high-gloss finish in several colours. With the Three+ you get two capsules and two screw caps, in matt black. If you drink a lot of wine with a screw cap, or want to take it with you, the Six+ is the logical choice.
Coravin's own comparison table
Can I use capsules from another brand?
There are capsules from other brands on the market that are said to fit a Coravin. Coravin itself advises against them and says using them can void the warranty, because the capsules are under high pressure. That is why we only sell the originals.
Coravin, FAQ and safety instructions
How many times can you put the needle into the same bottle?
A cork does not last for ever. Coravin says the needle can damage the cork after about fifteen insertions, and advises replacing the cork after that. At home you will rarely reach that limit, except with a bottle you pour a glass from every now and then over many months.
Coravin, Dutch FAQ
Does it work on old wine with a brittle cork?
With due care. Coravin makes a thinner needle for fragile corks. And Coravin gives a clear rule for when to stop: if the cork moves while you push the needle in or while you pour, it has been compromised and will not keep the wine properly any more. Take the system off and open the bottle with an ordinary corkscrew. With old wine that has thrown a sediment there is one more thing: the wine comes out with some force, and that can stir the sediment up.
Coravin, support page on needle care
Can the wine still breathe in the bottle?
No, and that is the whole idea. The bottle is under argon, so no oxygen gets in. With a young, closed wine that is a limitation. That is why every system comes with an aerator in the box: it does in the glass what the bottle no longer does.
Coravin's comparison table, where the aerator is listed with every system
What warranty does it come with?
Coravin provides a manufacturer's warranty against defects in materials and workmanship when you buy through the brand or an authorised retailer. That warranty comes in addition to your statutory rights against us as the seller and does not limit them. Damage to the wine itself is not covered. As soon as our range is settled, we will set out the exact period and conditions here.