Sidel has launched the Nitro Square bottle designed for still water dosed with liquid nitrogen. The solution targets a segment dominated by cylindrical designs, which the manufacturer attributes to the natural internal pressure generated by this filling method. Nitro Square has a square cross-section and was engineered to maintain its shape across the supply chain and to enable the use of rPET.
– "The market for nitrogen-dosed water bottles is currently dominated by cylindrical designs because that shape follows from the natural internal pressure," said Xavier Monnier, packaging and polymers innovation specialist. "Nitro Square helps producers differentiate their brands through a square form, retains its shape and properties throughout the supply chain, and enables the use of rPET."
According to the manufacturer, the shape is available in single-serve and multi-serve variants, and the design allows adaptation to various market positionings, from economy to premium.
Design and functionality
The Nitro Square design combines rigid features with flexible pressure-absorbing surfaces to maintain the square shape while limiting deformation resulting from internal pressure and logistics conditions. The bottle uses a corrugated StarLite-R Nitro base, which Sidel credits with improved stability and drop resistance, as well as benefits for performance and package appearance.
Formats and integration with production lines
Sidel states that the Nitro Square shape is easy to align with brand identity requirements, and the range includes single-serve and multi-serve formats. For implementation, the product can be integrated with the manufacturer's existing solutions, including Universal, Series 2 and EvoBlow machines. The stated production speed is up to 2,600 bottles per hour per mold.
