Using metal utensils on glass cookware can potentially damage the cookware over time. While glass is generally durable and resistant to scratching and staining, it is still more susceptible to damage from metal utensils compared to other materials like stainless steel or non-stick coatings.
Here are some reasons why metal utensils can be harmful to glass cookware:
Scratching: Glass is harder than most metals, but it can still be scratched by harder metals or rough edges on metal utensils. Over time, these scratches can accumulate and make the glass cookware look unsightly or weaken the glass, making it more prone to breakage.
Chipping and Cracking: Repeated impacts from metal utensils, especially on the edges of the glass cookware, can cause chipping or small cracks. These may not be immediately visible but can worsen over time and lead to breakage.
Thermal Shock: Glass cookware can be susceptible to thermal shock, which is a sudden change in temperature that can cause it to crack or shatter. Using metal utensils while the glass cookware is hot can increase the risk of thermal shock as metal absorbs and conducts heat, potentially causing uneven temperature distribution.
To keep your glass cookware in good condition and extend its lifespan, it's best to use utensils made of materials that are softer than glass, such as silicone, nylon, or wooden utensils. These materials are gentler on the cookware and less likely to cause scratches or other damage.
Additionally, avoid exposing glass cookware to extreme temperature changes. Let it cool down slowly or warm up gradually to reduce the risk of thermal shock. Handwashing glass cookware is also recommended to avoid potential damage from dishwasher usage.
If you accidentally damage your glass cookware with metal utensils, it's essential to inspect it carefully for cracks or chips. If you find any, it's safer to stop using the cookware, as it may be more prone to breaking or shattering during use.