In recent years, NNPB (Narrow Neck Press and Blow) technology has been quietly revolutionizing the glass bottle manufacturing industry—especially in the production of spirits bottles. With its ability to produce lightweight yet strong bottles, NNPB is gaining popularity among top-tier distilleries and bottling brands worldwide.
NNPB is a forming method that uses a metal plunger to press molten glass into the preliminary mold before blowing it into its final shape. Unlike the traditional blow-and-blow process, this technique results in more consistent wall thickness, making bottles not only lighter, but also stronger.
Lightweight with Strength
Bottles produced via NNPB can be up to 20% lighter without compromising durability—ideal for export-focused brands looking to reduce shipping costs.
Better Control & Consistency
The process ensures uniform distribution of glass, improving quality and reducing rejection rates, especially for bottles with longer necks or intricate shapes.
Sustainability Impact
Using less glass per unit contributes to lower energy consumption, reduced raw material use, and a smaller carbon footprint—a key selling point for environmentally conscious markets.
NNPB requires precise mold design, and at Jingrui Packaging, our engineering team works closely with clients to develop tailor-made molds that are NNPB-compatible. Whether for vodka, gin, or tequila bottles, we support clients through mold design, sampling, and mass production with strict QC.
As the global market places greater emphasis on eco-friendly packaging and supply chain efficiency, Jingrui’s integration of NNPB demonstrates our commitment to innovation. With enhanced production flexibility, we’re ready to meet the growing demand for high-quality, export-ready spirits bottles.
