ZOS Halo Wine Preserver


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  • A wine industry first, this Zero Oxygen Solutions Wine Preserver keeps an opened bottle of wine perfectly preserved for up to two months
  • Designed by wine lovers from the California wine region, it eliminates oxygen from an opened bottle of wine, preventing oxidization
  • Super-easy to use, there’s no need to inject gas or pump to create a vacuum – just insert it into the neck of your bottle and leave it standing upright
  • Works on any variety of wine – red, white or rose
  • Cartridge lasts for up to 15 bottles, Refill cartridges available
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Item # 491 01 01
Questions & Answers

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Browse 4 questions Browse 4 questions and 7 answers
How long do the batteries last?
James H on Dec 15, 2017
BEST ANSWER: The ZOS Halo Wine Preserver requires batteries for displaying the lights indicating when the unit is ready for use. I suggest using a name brand battery, a long life battery or a lithium one will last you the longest.
will it work on sparking wine ?
debra c on Dec 15, 2017
BEST ANSWER: The ZOS Halo Wine Preserver does not work on sparkling wine or champagne. We do offer a Champagne Preservation Recorker which will preserve your sparkling wine or champagne for days.
Champagne Preservation Recorker (Chrome)
Champagne Preservation Recorker (Chrome)
Customer Reviews

3.6 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
two halos, mixed results
I purchased my halos through the Kickstarter that funded this program. Regrettably, I cannot recommend this system. One of my cartridges gave each bottle of wine a foul, off taste. I stopped at two bottles because at $35-50 a bottle I would rather just drink the entire thing. Other cartridges did not have the same foul taste affect. Both halos sometimes say the cartridge is good (green light) and sometimes they say it's bad (red light), even though it's the same cartridge. So really, which is it? There is apparently a flaw in the testing system. If I were buying $10 bottles of wine, I would just pour out what I didn't drink after a couple days. I can't trust this system with the wines I typically drink because it's just entirely too inconsistent. To top it all off, I've made several inquiries with the company about what might be causing these problems and they've never responded. That's just completely inexcusable. So, you have to really make a decision, do you trust a fine bottle of wine to this or not, and if you're not drinking fine wine is this even necessary? I genuinely hope the product improves because the concept is great. It's just not there yet.
January 21, 2018
Repeated Failures
I originally purchased two halos through the Kickstarter program. The first cartridge I tried failed (testing red) after two or three nights in the first bottle. I tried a second cartridge and the wine was noticeably degraded after 2 nights. On the third night the cartridge tested red.

After a couple of tries contacting customer support they did send me two new units. The first one preserved the first bottle over three days. I used it in a second bottle, and again, the wine was preserved for 3 days. Unfortunately, when I returned the unit to the holder, it tested red (failure). Needless to say, 2 bottles is far less than the 15 bottles ZOS advertised.
January 27, 2018
Worst wine product Ever
If I could give this product a ZERO Star I surely would do that because it is terrible at preserving wine Actually seems to make it taste worse the next day than just putting a cork in overnight
February 20, 2018
10 months ago
Uncertain how good the ZOS is!
Not sure I can tell it’s that much better than other products on the market. I am not sure I can tell when the cartridges are no longer working and need to be replaced.
February 19, 2018
10 months ago
poor results for me
I purchased this product via the Indiegogo campaign (similar to kickstarter). I received two units and tested both. As far as the functionality the one unit worked as described. The second unit had problems from the beginning. After contacting the ZOS company they sent me a new unit. They tested the product and indicated that the batteries were bad on the original. They sent multiple batteries along with the new unit. The new unit functioned as indicated. When I say that the units worked/functioned as described/indicated I am referring to the annoying lighting scheme that goes along with the functionality of the product.

However, from the beginning both units (including the replacement), did not preserve the wine. Any wine I used the ZOS Halo preserver on showed deterioration as time passed. Depending on the wine this happened either by the second day or perhaps the third day. I confirmed that the preserver had an effective/tight seal. I personally don't feel that the preserver works as advertised to preserve wine.

I cannot recommend this product. I am not an amateur wine drinker. I hold a WSET Diploma and I have worked in the wine business for over 15 years. I have also used an original Coravin system (I was one of the first to use the Coravin). I feel the Coravin works fairly well but not perfectly itself. I feel its effectiveness has a lot to do with the quality of the cork on the bottle you are pouring from.
April 15, 2018
At last! Something that works.
Seems high tech, but really simple to use, and remarkably effective. Goodbye to frantic pumping, or squirting unsure amounts of gases into bottles. So far haven't gone beyond two weeks with an open red wine ands no refrigeration, but to that point the wine was fully preserved. After a couple of months and a number of bottles, the initial cartridge is still working. Wow!
February 19, 2018
10 months ago
This works beautifully.
Easy to use and great for saving your wine for another day
Highly recommend
March 19, 2018
8 months ago
Works as advertised
Tried on first bottle of Pino and could detect no difference after two weeks. So far so good.
January 6, 2018
10 months ago
Seems to work fine
I have not used this long, and am still on my first cartridge. I would not say the red wine bottles I have used it with tasted like first opened after a day or two, but nor were they notably oxidized and they certainly remained drinkable. Definitely better than just re-corking or a vacuum stopper. We are experimenting with this system at our local winery/tasting room, and seemed to be burning through the cartridge much faster than at home. Not surprising, but the initial impression remains nonetheless favorable. Not pouring yesterdays 1/2 bottles down the sink still remains a good investement, but we will see over the next few months.
January 5, 2018
10 months ago
ZOS Wine Preserver
This is the greatest! This is the first time we have been able to keep a bottle of wine for more that 3-4 days. The last bottle was preserved for over 2 weeks while we were on vacation. Amazing!!!
March 21, 2018
10 months ago