Yes, it is generally safe to use a laptop on a granite countertop. Granite is a durable and heat-resistant material commonly used for countertops. It can withstand the heat generated by laptops without any issues.
However, it's important to note that granite, like any other hard surface, can potentially scratch or damage your laptop if it is dragged or moved across the surface roughly. To avoid this, it is advisable to place a protective mat or cushion underneath your laptop when using it on a granite countertop. This will provide an additional layer of protection against scratches and help prevent any potential damage to the laptop's casing.
Additionally, keep in mind that granite countertops can be cold and hard, which may not be the most ergonomic or comfortable surface for prolonged laptop use. Using a laptop stand or a soft pad beneath your wrists can help improve ergonomics and provide a more comfortable typing experience.
Overall, as long as you take precautions to protect your laptop from scratches and ensure a comfortable setup, using a laptop on a granite countertop should not pose any significant safety concerns.