These Vietri Old St. Nick condiment bowls are super easy to use. You can put various condiments like ketchup, mustard, or salsa in them. They're great for parties or everyday meals. Since they're dishwasher safe, cleaning up is a breeze. Just pop them in the dishwasher after use. They're also microwave and freezer safe. You can heat up food in them in the microwave or store leftovers in the freezer. However, when using them in the microwave, make sure to check for any signs of damage first. For maintenance, avoid using abrasive cleaners as they might scratch the hand - painted surface. With proper care, these bowls will last you a long time and add a touch of holiday cheer to your table.