This cleaning formula was originally created for Cretors nickel plated kettles. Our Inside Kettle Cleaner is a powerful, granular detergent, which effectively removes built-up carbon and other debris in your kettle when mixed with water. Use with Cretors Original Outside Kettle Cleaner. Complete your kettle cleaning routine with Cretors Original kettle cleaner to keep your kettle looking like new. 12 jars per case.