Why Are Glass Bottles Different Colours? The Science Behind Coloured Glass
March 24, 2026
When walking down the beverage or food aisle, it’s easy to notice that many glass bottles are not completely clear.
Glassworks International manufacture and supply a wide range of bottles and jars in a variety of shapes, sizes and colours.
We are the UK’s leading independent specialist in the manufacture, supply and design of best quality glass bottles and jars. For 25 years, customers throughout the UK and Europe have been relying on Glassworks International for wholesale purchasing of glass bottles and jars.
Introducing our range of Lightweight Glass products, developed to help our customers lower emissions, cut costs and improve their sustainability by:
✓ Lowering their environmental impact.
✓ Reducing packaging costs.
✓ Improving supply efficiency.
✓ Supporting EPR Compliance.
✓ Glass is 100% recyclable and infinitely reusable. Plastic? Not even close.
✓ Glass has a higher recycling rate (69.8%) than plastic (51.4%). Yet, under EPR, plastic gets a lower cost burden.
✓ EPR is based on weight, not sustainability. A 500ml glass bottle is taxed far more than its plastic equivalent.
✓ This policy pushes businesses AWAY from glass and TOWARDS plastic.
We are the UK’s leading independent specialist in the manufacture, supply and design of best quality glass bottles and jars. For 25 years, customers throughout the UK and Europe have been relying on Glassworks International for wholesale purchasing of glass bottles and jars.
We provide technical guidance, logistical support and importation expertise.
Glassworks International are committed to providing our customers with a consistent, effective, worry-free supply chain at all times.
When walking down the beverage or food aisle, it’s easy to notice that many glass bottles are not completely clear.
Many beverage producers, especially those filling carbonated drinks, are understandably cautious about moving to lighter weight glass bottles
Glass is one of the materials people have used for thousands of years. We use it to make all sorts of things, from jewellery to containers for food and beverages.
Choose from our wide range of designs and colours to suit your product.
Choose from our wide range of designs and colours to suit your product.
