General FAQs

Frequently asked questions

KeyKegs are generally filled with beer, wine, RTDs & cocktails, coffee or kombucha. In fact, KeyKegs can be used for almost all water-based, carbonated or non-carbonated beverages. Please contact us if you have further questions.

KeyKeg can be filled with any style of beer. Some breweries even use KeyKeg to age lambics, imperial stouts and other special beers — to good effect.
It is not possible to force carbonate beer in KeyKeg. Secondary fermentation in KeyKeg is possible under the right conditions; it is important that the CO2 content does increase too much.
We have created a video for you to watch that demonstrates how KeyKeg CO2 content is measured.

Please contact us if you have further questions about measuring CO2 content in KeyKeg.

We have created a video for you to watch that demonstrates how to connect KeyKeg 20 litre.

If stored properly, kegged (unopened) beer stays fresh in KeyKeg for at least 9 months — as long as it does in steel — although it often lasts much longer. Shelf life depends on beer style, ingredients, alcohol content, whether pasteurised or not, and the care taken during filling. Some brewers even use KeyKegs to age their beers.

Up to 8 individual KeyKegs and KeyKeg accessories can be ordered from our Webshop. Customer registration is optional.

KeyKegs by the pallet can be ordered from our Netstore, where customer registration is required.

Please contact us if you have further questions.

Contact your existing suppliers, local distributors and beverage produces to ask what they supply to your area in KeyKeg. Existing KeyKeg Community members can connect with local, national or international distributors and producers direct through our website.

Once tapped (opened), beer stays fresh for at least 4 weeks in KeyKeg, although it often lasts much longer, depending on beer style, proper storage conditions and the cleanliness of dispense systems.

KeyKeg's maximum dispense pressure is 4.1 bar / 59 PSI — the KeyKeg coupler's safety valve prevents higher pressure.
The maximum transport and storage pressure is 6 bar at 40° C / 104° F.

Always deflate KeyKegs in a well-ventilated area. Use the red KeyKeg deflating tool or Micro Matic dispense head with built-in deflating switch. Keep the red KeyKeg deflating tool for future use.
Once deflated, there are several recycling options for empty KeyKegs.
We have created a video for you to watch that demonstrates the KeyKeg deflation process.

Unique to KeyKeg, Double Wall™ Technology is the two PET walls that dynamically work together to make KeyKeg stronger, safer and sturdier. The Institute for Research and Teaching in Brewing (VLB) has extensively tested KeyKeg properties; Double Wall™ Technology handles greater pressure than single-walled Kegs. Tested to 7 bar / 101 PSI, KeyKeg offers increased protection against damage during filling, handling, transport and dispense.

Bag-in-Keg™ Technology is KeyKeg's laminated, airtight inner bag: a multi-layered protective light barrier that prevents oxidation and CO2 contamination. The inner bag also separates beverages from the propellant gas that squeezes the bag until it is completely empty. Customers can dispense almost to the last drop using any gas, even compressed air — CO2, N2 or mixed gas is not necessary.

Connecting

Frequently asked questions

We have created a video for you to watch that demonstrates how to connect KeyKeg.

We have created a video for you to watch that demonstrates how to set equilibrium pressure using a Carbonated Beverage Calculator.

Filling

Frequently asked questions

We have created a video for you to watch that demonstrates how to fill KeyKeg with carbonated beverages.

We have created a video for you to watch that demonstrates how to fill a KeyKeg with beer.

We have created a video for you to watch that demonstrates how to fill a KeyKeg with wine.

Unfilled KeyKegs last at least 24 months. The manufacture date for each KeyKeg is printed on the sleeve. Furthermore, each KeyKeg contains a unique QR code that helps our support team identify every Keg.

Please contact us if you have further questions.

Double Wall™ Technology is a KeyKeg safety feature. When filling KeyKegs, the Double Wall™ responds to the higher pressure, causing both walls to shift slightly, which sometimes causes a cracking sound as the two layers interact. Do not worry, KeyKegs can withstand much higher pressure than applied during filling.

We have created a video for you to watch that demonstrates how to measure the dissolved CO2 level of beer in a KeyKeg.

It depends on the type and manufacturer of filling line. Your supplier should be able to advise you further.

Please contact us for advice about suppliers of KeyKeg filling machines.

Dispensing

Frequently asked questions

This may happen for a number of reasons, such as dispense pressure, secondary fermentation or temperature.
We have created a video for you to watch that demonstrates how to deal with foaming.

The KeyKeg coupler is a modified GR type fitting that is easy to connect and compatible with any dispense system. It complements Bag-in-Keg™ Technology to keep propellant gas separate from beverages.

Please order KeyKeg couplers from our Webshop.

A KeyKeg filling coupler or manual filling starter box is required to fill KeyKegs manually.
Please order KeyKeg filling couplers or manual filling starter boxes from our Webshop.

We have created a video for you to watch that demonstrates how to dispense from KeyKeg using air.

We have created a video for you to watch that demonstrates how to use KeyKegs on-trade.

We have created a video for you to watch that demonstrates how to clean a wine dispensing installation.

Clean the lines as normal by connecting a KeyKeg cleaning adaptor to a cleaning canister or existing cleaning system.
We have created a video for you to watch that demonstrates how to clean a dispense installation.

Please order accessories from our Webshop.

Dispense at home or at parties and events with a KeyKeg Party Pump — ordered from our Webshop — or another portable, temporary or non-permanent dispense option that is available through the recommended links below.

Please contact us for advice about dispensing at home or at parties and events.

Handling & Storage

Frequently asked questions

If stored properly, kegged (unopened) beer stays fresh in KeyKeg for at least 9 months — as long as it does in steel — although it often lasts much longer. Shelf life depends on beer style, ingredients, alcohol content, whether pasteurised or not, and the care taken during filling.
Some brewers even use KeyKegs to age their beers.

Once tapped (opened), beer stays fresh for at least 4 weeks in KeyKeg, although it often lasts much longer, depending on beer style, proper storage conditions and the cleanliness of dispense systems.

We have created a video for you to watch that demonstrates how to stack filled KeyKegs correctly.

48" × 40" (120 cm x 100 cm) block pallet:

  • 10 L: 140 KeyKegs.
  • 20 L: 80 KeyKegs
  • 30 L: 48 KeyKegs

Dealing with empty Kegs correctly

Frequently asked questions

Empty KeyKegs are recyclable. Wherever possible, empty KeyKegs are either collected by our Collection Network partners to be recycled into new KeyKegs or added to local recycling programmes.

Find a Collection Network partner in your region or contact us if you have further questions.

Always deflate KeyKegs in a well-ventilated area. Use the red KeyKeg deflating tool or Micro Matic dispense head with built-in deflating switch. Keep the red KeyKeg deflating tool for future use.
Once deflated, there are several recycling options for empty KeyKegs.

We have created a video for you to watch that demonstrates the KeyKeg deflation process.

To further our ambitious goals for sustainability, we are assembling a worldwide Collection Network of partners to collect and process empty Kegs for reuse as materials in the production of new KeyKegs. Our Collection Network partners enable recycling initiatives that complement existing local waste-management streams. We also actively seek new partners to join our community and collect empty KeyKegs in their areas.

Sustainability

Frequently asked questions

Circularity is the highest achievable recycling, namely turning a KeyKeg into a KeyKeg again. In other words, complete reuse of one's own raw materials. This remains our 'leitmotiv', the goal we will always strive for. Recycling in a general sense means putting materials back into the raw materials chains after use. In most cases, this involves downcycling: the recycled material has become of lower quality and is then used to produce lower-value products. In most cases it is also a - longer or shorter - delayed form of waste.

Thermal recycling’ is burning waste. Modern waste-management plants use incineration to generate electricity, which suggests waste material may continue to serve a purpose. ‘Thermal recycling’ is often thought of as recycling.

Firstly, we are not only interested in circularity, but also our CO2 footprint. Plastic is produced from petroleum, so burning plastic also means burning fossil resources. Secondly, because we use ISO 18604 as our yardstick. And they think the same way as we do, so according to ISO, combustion should be disregarded.

No. For some time now we have also been using Life Cycle Assessment (LCA) as a method of quantifying the environmental impact of our products. Whereas ISO only looks at the product itself, LCA looks at the entire chain 'from sand to customer'. And in the case of circular products also 'from customer to sand'. This means that the impact of production and distribution is also included in determining the total environmental burden. The advantage is that there are more wheels to turn in reducing the impact on our environment. Another advantage is that when the wheels are turned it is immediately clear what benefits can be achieved, such as reduction of raw material use or CO2 footprint. It provides us with a means of broadly steering the sustainability of our products.

You cannot see that. We can say with certainty that the grip ring and the base cup (the black parts) are made of 100% recycled PP at all times. The transparent containers are made of 'food grade' PET and they have to meet strict quality requirements, including being able to withstand pressure. Recycled PET (rPET) does not always meet these quality requirements, but we do want to add as much as possible to the PET blend from which our containers are made (OnePET). But because of quality requirements, that percentage of rPET can fluctuate somewhat. On average, a KeyKey consists of about 39% recycled material (rPET and rPP). And we are exploring every day how to get this percentage up. But because it fluctuates within a margin of some percent, we don't want to communicate a promise that we can't always keep.

Absolutely. The disadvantage of claiming 100% recyclable is that you think you can sit back and do nothing. We're not into that. Our aim is to increase the amount of recycled material and 100% recyclability idem ditto. As soon as we take significant steps in this direction, we will certainly communicate. With pride!

Sustainability is high on the OneCircle agenda. Indeed, it is at the core of our identity. Because being sustainable sometimes conflicts with the aim of not being inferior to competitors, we have till now stated KeyKeg is 100% recyclable. But we know, however, that one small part of each KeyKeg is difficult to recycle and is essentially burnt after use, otherwise called 'thermal recycling'. We want to be fully transparent, we reject greenwashing, and we have doubts about the 'thermal recycling' concept, so we decided to further test the recyclability claim.

Not only do we measure our performance against a strict yardstick, but we also adhere to a verifiable, internationally recognised ISO standard. ISO is the International Organization for Standardization, and we have chosen to test our Kegs for recyclability according to ISO 18604, which rejects ‘thermal recycling’ as sustainable. We agree.

Certainly. Not only can you visit our website, but we will also publish an annual sustainability report starting in 2022. In it, we will update the figures, but also explain how they are arrived at. Incidentally, for OneCircle sustainability means more than just climate and environment. In our annual report, we will also further explain our supply chain management and how we deal with issues such as human rights, labor rights and inclusiveness.