Yes, you can definitely chill hot coffee to make iced coffee. The process is simple - brew your coffee as usual and let it cool to room temperature. Once it has cooled, transfer it to a container and place it in the refrigerator to chill for a few hours or overnight. You can then pour the chilled coffee over ice and add desired sweeteners or milk to customize your iced coffee. However, it's important to note that chilling hot coffee may result in a slightly different taste than brewing coffee, specifically for iced coffee. When hot coffee cools down, its flavors can change and become more muted. So, if you're looking for a stronger flavor profile, it might be worth considering brewing your coffee using a cold brew method instead. Cold brew involves steeping coarsely ground coffee in cold water for an extended period of time, resulting in a smooth and flavorful iced coffee without the need for heat.