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| The tempering process Following the hot forming phase, the glassware is introduced into a tempering tunnel and subjected to a special heat treatment involving sudden cooling (from 700°C, 1.292°F to 20°C, 68°F) by means of a compressed air jet directed over the entire body. |
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| Resistance to impact It boasts greater resistance to impact, being 3 to 5 times more resistant than annealed glassware and longer life under conditions of frequent use, up to 10 times longer than annealed glassware. |
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| Resistance to thermal shock Bormioli Rocco tempered glassware is highly resistant to thermal shock and impact. It can withstand sudden breakage caused by temperature changes on the product surface (ΔT of approx. 130°C, 266°F). |
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