15L Classic Keg
Bridge the gap between specialized event volumes and large commercial packages with the Petainer 15L Classic Keg. Optimized for mid-tier accounts and highly light-sensitive beer styles like premium pilsners and sours, this boxed one-way PET keg guarantees total UV protection and significantly lowers shipping costs on regional distribution lines.
- Versatile mid-tier volume tailored for seasonal or specialized beer accounts.
- Robust cardboard casing shields beer completely from harmful UV rays.
- Ultra-light one-way design cuts transport carbon emissions drastically.
- Eliminates the high capital expenditure of lost or delayed steel assets.
- Arrives pre-purged and completely sterile for immediate filling line attachment.
Product Specifications
| Colour | Volume | Diameter | Height | Weight | Neck Type | rPET |
|---|---|---|---|---|---|---|
| Brown | 15000ml | 235mm | 446.2mm | 987g | A Type | - |
| Brown | 15000ml | 235mm | 446.2mm | 987g | G Type | - |
| Brown | 15000ml | 235mm | 446.2mm | 1006g | D Type | - |
| Brown | 15000ml | 235mm | 446.2mm | 1006g | S Type | - |
15L Classic Keg Properties
| Max Content Pressure | 3.1 bar / 45 psi |
|---|---|
| Dispense Working Pressure | < 3.1 bar / 45 psi |
| Burst Pressure | > 7.75 bar/ > 112 psi |
| Drop Functional Test | 1.2 m flat metal surface |
| ASTM D4169-14 (pre-condition 40°C; 72h) | Transport Simulation Test filled kegs |
| Sanitising Recommendation | 70 % Ethanol |
| Ph Range Compatibility | 3 to 9 |
| Fill Window (Based on Storage Conditions) | Optimum: Within 6 months Max: Within 9 months (if optimum storage conditions met) |
| CO2 Loss | < 15 % ( 22 °C / 72 °F) 12 months |
|---|---|
| O2 Ingress | < 0.2 ppm (22 °C / 72 °F) 9 months |
| Cleaning | Cleaning detergents & chemicals may cause stress cracks on the components |
| UV and Light Protection | Up to 500 nm |
| Materials – Keg | PET |
| Materials – Fitting | POM, PP, TPE, NBR, Stainless Steel |
| Recommended Storage Conditions Unfilled | Optimum: < 22 °C / 72 °F Max: 50 °C / 122 °F |
| Shelf Life - Filled Based on optimum storage; (below 22°C), out of direct sunlight. | O2 Barrier: 18 months from manufacture CO2 Barrier: 12 months from fill date |
Compliance & certifications
Produced in accordance with the following regulations and standards:
Case Study
How PET Kegs Helped Scale Cold Brew Distribution
Ferris Coffee adopted Petainer's 20L one-way PET Hybrid Kegs to expand cold brew distribution beyond its own cafés. The move reduced the cost and complexity of steel keg logistics, while helping protect product quality and support growth in new markets.
Frequently Asked Questions
Highly delicate, hop-forward, or light-sensitive styles like IPAs, pilsners, and sour beers benefit immensely from the 15L volume turn-rate and the box's total UV protection.
Unlike round barrels, the flat, rectangular box prevents rolling and uneven weight shifting, creating a highly stable block stack during long-distance transit.
Yes. The heavy-duty PET structure is thoroughly pressure-tested to maintain proper gas balance and carbonation levels for both CO2 and nitrogenated beverages.



