The most common cause of glass bakeware breakage is mechanical impact such as being hit against something or dropped on a hard floor.

Thermal stress is another cause of breakage that can develop from a sudden change in temperature. Sudden shifts in temperature cause parts of glass to expand or contract more than other parts which may trigger breakage. “Thermal shock” occurs when glass goes from hot to cold or cold to hot too quickly, such as putting a hot dish directly on a cold surface. Often times, the failure occurs slowly and the breakage doesn’t happen right away.

The common cause of the soda lime cookware breakage is that they develop invisible cracks over time. Once a hot liquid finds its way into these invisible cracks, the soda lime glass will shatter causing a mess and a possible injury. This however is not the case with borosilicate. Borosilicate Glass has a very low CTE (Coefficient of Thermal Expansion) whereas soda lime glass has a very high CTE. It is for this reason that you should consider Borosilicate Glass bakeware – specifically JSG Oceana Borosilicate Glass Bakeware for your meal preparation needs. (sources:,

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