Greiner Packaging and Berlin-based beverage brand HOLY have introduced a reusable syrup bottle featuring an integrated mechanical dosing system designed to customise flavour intensity during consumption. The development combines reusable packaging design, precision injection moulding and interchangeable syrup pods in a single system solution.
The bottle separates water and syrup until the point of drinking, where the liquids are combined through a dosing mechanism integrated into the cap. Users can select from five flavour intensity levels without opening the bottle. According to the companies, the dosing system consists of 13 individual components and requires highly precise injection moulding tolerances, including a central opening measuring less than one millimetre.
The reusable bottle is manufactured using Tritan material, while the cap incorporates ABS and silicone components. The interchangeable syrup pod carrier uses in-mould labelling (IML) technology. The system is dishwasher-safe up to 50°C and designed for repeated long-term use.
The project marks HOLY’s expansion from powder-based beverage products into liquid concentrates delivered through replaceable syrup pods. The system aims to reduce dependence on conventional ready-to-drink single-use beverage packaging by separating concentrate from water until consumption.
Florian Horsch, Director of Product at HOLY, said: “Greiner Packaging is far more than a traditional plastics specialist. It is a place where people work with passion and genuine enthusiasm. These shared values laid the foundation for a successful project.”
Herwig Stadler, Head of Project Management at Greiner Packaging, added: “Being able to bridge the gap from idea to mass production with our technical expertise shows how partnership-driven development shapes market success.”
The companies said the reusable format is intended to support reduced packaging waste and lower transport volumes compared with pre-filled beverage formats.