Glass packaging, explained.

Practical notes on specs, materials and finishes for buyers sourcing glass bottles, jars and vials.

What 18/410, 24/410, FEA 15, DIN 18 and other neck finish codes mean, and how to match closures correctly.

What separates borosilicate from soda-lime glass, and which one your product actually needs.

How to choose glass colour based on light sensitivity and shelf presence, not just looks.