Petainer and Hiperbaric partnered to launch the first keg for High-Pressure Processing (HPP) of beverages. Petainer has over 35 years of expertise in designing and manufacturing high-quality and cost-efficient packaging solutions, and Hiperbaric is the leader in High-Pressure Processing (HPP), a non-thermal pasteurization technique based on the application of high levels of hydrostatic pressure transmitted by water. Petainer Kegs are manufactured with sustainable PET, which uniquely allows them to undergo the HPP process. Large format packaging for HPP is a breakthrough innovation, widening the possibilities for producers to enter new markets by serving their products on draught, not just in single serve packaging. The benefits of Hiperbaric technology combined with Petainer’s sustainable and low-cost packaging solution transforms the landscape for beverage producers looking to expand their sales footprint and gain increased margin.

How does the process work?

The process begins with the product filled into the sterile Petainer Keg that has been purged of oxygen. The keg then goes through the HPP process—pressurized up to 87,000 psi to inactivate spoilage microorganisms and foodborne pathogens, such as Salmonella, E. coli, and Listeria. The keg can be easily taken to a location (juice bar, coffee shop, taproom, etc) to be dispensed using nitrogen in the same way that beer is dispensed. The use of nitrogen in beverages enables it to maintain its shelf life in the keg, even if it’s dispensed over a period of one to two weeks.

ApplicationBefore HPPAfter HPPApplicationBefore HPPAfter HPP
Cold Pressed Juice3-10 days60-120 daysNut milks3-5 days21-60 days
Fruit-based water3-10 days45-90 daysCocktail30-45 days75-120 days
Cold brew coffee and tea21-45 days60-120 daysBeer30-60 days4 months @ 20 Celsius
Probiotic and fermented3-10 days45-90 daysWine6 months6 months @ 10-15 Celsius