What makes Duralex glass so strong is the tempering process.
It consists of rapid ventilation cooling of the entire glass product, which has been previously heated to a temperature of approximately 700 C.
This treatment creates controlled stresses in the glass that improve most of its physical qualities: resistance to mechanical stress and thermal shock (sudden temperature change).
This makes Duralex glass at least 3.5 times more resistant to mechanical stress than an annealed (standard) glass product. It is resistant to thermal shock of at least 130 C.
Glass dimension: 7.7 x 12.4 (cm)
Glass capacity: 330ml
What's in the box
6x Glassware
