Frequently Asked Questions (FAQ) on Beverages in KeyKeg/PolyKeg and Dispensing Equipment

KeyKeg and PolyKeg systems can handle beer, wine, sparkling wine (e.g., Secco), cocktails, kombucha, coffee and more, provided the beverage is suitable for pressurized storage.

Unopened and stored correctly, single-use kegs remain fresh up to 12 months. Once tapped, contents stay fresh for about 4–6 weeks if temperature and handling guidelines are followed.

No. Thanks to the Bag-in-Keg™ technology, you can use compressed air to push the beverage out. The drink never contacts the gas, preventing oxidation and preserving freshness.

No. KeyKeg and PolyKeg are designed for one-time use to ensure maximum hygiene without cleaning or returns.

After releasing the pressure via the safety valve, recycle the empty keg with plastics. Please follow your local recycling regulations.

They eliminate reverse logistics, reduce transport costs and CO₂ emissions, require no cleaning/return transport, and are fully recyclable after use—making them a more sustainable choice.

We offer KeyKeg and PolyKeg in 20-liter sizes.

No. We do not sell empty kegs or provide filling services for KeyKeg/PolyKeg.

Both use Bag-in-Keg™ technology for oxidation protection. KeyKeg (OneCircle) has a proprietary coupling; PolyKeg uses standard fittings. Functionality and reliability are comparable; compatibility is the main consideration.

Any stationary or mobile draft system with a fridge or flow-through cooler—using CO₂ or an air compressor—works, as long as you have the correct couplers (S-type or KeyKeg-type). Adapters are in our Accessories category.

Yes, if you have separate lines or quick-change fittings. For best results, we recommend dedicated lines and taps.

Clean at least once a week with specialized cleaning agents to prevent buildup and bacteria.

Ideal for catering, events, or outdoor use—portable, easy to transport, and flexible without compromising freshness.

Yes—just ensure you have the right coupler: KeyKeg requires a KeyKeg coupler; PolyKeg fits standard S-type. Often you only need a new coupler.

1.5–2.5 bar (22–36 PSI), depending on carbonation, temperature, and line length. Use a regulator for precise adjustment.

CO₂ change frequency depends on usage; compressors run continuously while powered. Check levels regularly and keep spares.

Both work—Bag-in-Keg™ isolates gas from the drink. Compressors are low-maintenance, no oxidation risk; CO₂ provides stable pressure and matches existing setups.

Allow about 85–90 cm height and 40–45 cm width to comfortably install and replace the keg including coupler space.

Yes—in Berlin region we offer mobile draft systems for rent or rent-to-buy, subject to availability.

Store upright at 4–7 °C in a dark place. Avoid direct sunlight and large temperature swings.

Besides the dispensing system, you need proper couplers, a pressure regulator, and optionally CO₂ cylinders or an air compressor.

No—always store upright to keep the internal bag correctly positioned and prevent damage.

In a fridge about 8–12 hours; in a keg chiller only a few hours to reach 4–7 °C.

Check pressure (1.5–2.5 bar), coupler seating, tap opening, temperature and line blockage. Contact support if issues persist.

Transport upright if possible, secure against rolling, avoid extremes of temperature and heavy shocks.

“Aperol Spritz” is a registered trademark. We offer our own alternatives like Spritz Veneziano Bitter Aperitivo and Spritz Aper@it Aperitivo, closely matching the original taste.

Yes—use our Bianco Frizzante Extra Dry or Glera Frizzante Extra Dry Veneto IGT with a bitter aperitif and soda. Step-by-step guide: Klassischer Spritz aus Frizzante vom Keg.

Our cocktails are pre-mixed in the keg—no manual mixing, time-saving, and very close in taste, but with a unique recipe and brand.

Within Germany: 2–5 business days, depending on region and order size. International times vary. Details under “Delivery & Payment” on our website.

No—you can order from a single keg upward.

Yes, discounts from pallet orders (40 kegs) onward. Contact sales at [email protected] for a quote.

After dispatch you'll receive an email with a tracking number. For issues, contact support: [email protected].

No. Our cocktails amortize after selling just 3–4 kegs (≈123 servings per keg).