Keep your sauce hot and at its best. The HeatTHAT! Gravy Boat keeps gravy delectably hot and tasting its best for over 30 minutes. Just pop the silicone-insulated base into the microwave for 60 seconds, place it under the matching gravy boat, and enjoy every last piping-hot drop. Never settle for gravy gone cold again. Also ideal for keeping queso, chocolate, cheese and other guest favorites warm and melted while serving.