Yes, you can generally put hot pans directly on a granite countertop without worrying about cracking, as it is a durable, heat-resistant stone that can withstand high temperatures. However, it is still highly recommended to use a trivet or hot pad as a precaution. Prolonged or repeated exposure to high heat can potentially cause discoloration or damage the countertop's sealant, making it more susceptible to staining. Additionally, the heat from a pan can transfer to the granite, creating a burn hazard for anyone who touches the surface shortly after.

Butcher block countertops are durable, but wood is generally susceptible to extreme heat, so you should avoid placing hot pots and pans directly on a butcher block counter. This will likely cause some aesthetic damage in the form of scorch marks. Instead, invest in some trivets and put your hot cookware on top of them.

Yes, it is possible to cover old countertops with new ones. Using a countertop overlay to cover your existing countertop is a good way to get a totally new surface without removing your old countertops. This method can be more cost-effective and less time-consuming than a total replacement.

Small kitchens benefit from simple, blunt countertop edges, as complicated edges can create visual clutter and be more of a hazard if you bump into them. Eased edges are a top pick for small kitchens because they are simple, do not jut out, and do not take up additional space. Bullnose edge countertops are also popular because of their rounded design; they are elegantly simple and will not be sharp when you bump against them. Single-beveled edges are also a good choice, as they look a little more upscale but still have rounded edges for safety and simplicity.