Because the surface of a composite sink is nonporous, it doesn't stain as readily as other materials. Make a habit of wiping the sink with warm soapy water, rinsing it and wiping it dry with a soft cloth after every use.

How do you get stains out of a composite sink?

Fill the sink with warm, soapy water, and let the food stains soak for up to an hour. Dip the nylon brush into the warm, soapy water, and apply it to the stained areas in gentle circles, then drain the sink and rinse clean. Repeat as necessary.

Do composite sinks stain easily?

Both stainless and composite sinks are durable and stain-resistant. While just about any sink available in a home-improvement store does its job well, all sinks are not created equally. The sink's composition affects its ability to resist stains and heat.