The GE JGP637 has a tempered glass cooktop, which delivers a smooth, uniform surface for an attractive appearance that's easy to clean. Sealed burners help contain spills and make clean-up easy. A High output burner provides extra heat for large pots and rapid boiling. Two Precise simmer burners offer low settings for melting chocolate and preparing delicate sauces. Deluxe cast grates are constructed from a premium cast iron material for durability and are dishwasher safe. Porcelain drip bowls contain minor spills.