Lightness meets performance

Vetropack’s Ethera bottles combine elegance and durability with reduced CO₂ impact. From lightweight to ultra-lightweight, every bottle meets strict alpha factor standards — proving that lightness can be strong.

Lighter, but more stable; fewer resources, but higher performance: packaging manufacturers are increasingly confronted with demands like these. As a natural raw material that is infinitely recyclable, there’s no doubt that glass offers clear advantages over other materials when it comes to sustainability. But like every other sector, the glass industry is aiming to improve resource efficiency – so manufacturers are searching for more ways to reduce material usage without compromising the performance of glass packaging.

Vetropack’s dedicated brand for lightweight glass bottles, created to unite sustainability with uncompromising performance. Derived from the Greek word aither (pure air or heaven), Ethera captures the essence of lightness while ensuring durability and premium quality.

Alpha factor – Ensuring strength in lightweight bottles

Products promoted under this brand meet strict alpha factor criteria to ensure durability while lowering CO₂ impact. Ethera covers lightweight, super lightweight, and ultra lightweight bottles, defined by an alpha factor below 11.81. 

The alpha factor is a performance index linking a bottle’s geometry to its mechanical strength, predicting resistance to internal pressure and external stress. It is crucial for lightweight bottles, ensuring durability and safety during filling, transport, and consumer use while reducing material and emissions. 

Discover our lightest wine & sparkling bottles and food jars

Rheinwein Schlegel 380 g BV3060 1000 ml

Combining a tall, elegant silhouette with minimal glass weight, this 1 liter ETHERA Rheinwein bottle reaches a remarkable alpha factor of 9.42, offering exceptional performance for non returnable wine applications.

Rheinwein leicht 350 g BVS3060 750ml

The lightest Rhinewine bottle in Europe, designed for efficient logistics with an alpha factor of 10.89. Produced in Austria with ~80% recycled glass, its low weight helps reduce transport-related CO₂ emissions (13% or 33 g less over 100 km compared to conventional bottles). A reinforced BVS finish ensures durability and reliable industrial filling. When used in a returnable bottle system, Rheinwein bottles can achieve CO₂ savings of up to 90% (37218 Rheinwein RET 514g BV3060 750ml).

Bordeaux 350 g BV3060 750 ml

As one of the lightest Bordeaux bottles in its category, this ETHERA model achieves an outstanding alpha factor of 10.89, ensuring premium presentation with significantly reduced glass usage.

Bubblys 455 g MC281G 750 ml

Designed for sparkling beverages, this ETHERA bottle delivers strength with minimal material—its exceptional alpha factor of 14.01 positions it among the most efficient lightweight options in the sparkling segment.

Konservenglas 272 g TO82RH 720 ml

This ultra efficient ETHERA jar offers a large 720 ml volume at just 272 g, delivering a strong alpha factor of 8.89 that highlights its position in our lightweight, resource optimized portfolio.

Vaso miele Alvea 170 g TO70 390 ml

This honey textured ETHERA jar combines a compact 390 ml volume with a minimal 170 g weight, achieving an excellent alpha factor of 9.07 and delivering standout efficiency within our lightweight portfolio.