
Therefore, it may not be safe to microwave cold Pyrex as it can crack or shatter due to the change in temperature of Pyrex and the microwave enclosure.

You will have to be careful while heating or cooking food in Pyrex ware in a microwave, as the electromagnetic kitchen appliance is not specifically mentioned in this regard on their official website.Īccording to them, Pyrex glassware can crack or shatter when there is an abrupt change in the temperature of its surroundings. The type of glass used in Pyrex kitchen cookwares is thicker and harder than the glass used by other brands in making their glassware.

However, you will have to follow a few rules. Through a press release, the manufacturers of Pyrex have assured that Pyrex is microwave safe can be used safely. Microwaving cold Pyrex does not have to be complicating, so let’s discuss the dos and don’ts of heating cold Pyrex in the microwave. This uneven exchange in temperature can give a shock to the Pyrex glass and it will crack or shatter within a few minutes. When cold Pyrex is directly put into a pre-heated microwave, then due to the change of temperature, the temperature of its different elements will change at different speeds. Pyrex is thicker and harder glass than the glass used in other kitchen-wares.

If you microwave cold Pyrex by transferring it from the freezer or refrigerator to the microwave, then it may crack or shatter due to abrupt change in temperature. But, can you microwave cold Pyrex that has just been in the freezer? Though it has been claimed by the manufacturers that you can microwave Pyrex as well as it being freezer safe.
