Bunn coffee maker's thermal carafe does not keep coffee hot for long.

Safety: Normal handling precautions.

Steps:

• 1. Preheat carafe: Rinse the thermal carafe with hot water before brewing to improve heat retention.
• 2. Check lid seal: Ensure the lid is screwed on tightly and that the gasket is intact. Replace the lid if the seal is worn.
• 3. Test insulation: Fill the carafe with hot water and check temperature after 1–2 hours. If it cools rapidly, the vacuum seal may be lost and the carafe should be replaced.