Premium quality food-grade silicone is thicker than cheaper boiled egg containers and is BPA-free. Temperature tolerance: -40 F to 405 F (0-230 C). - Even cooking and heat control: During cooking, the egg container sits in boiling water and helps manage heat transfer to the egg. This design protects the egg from rolling movement and promotes even heat distribution. You can monitor the egg and decide when it is done. - Note on doneness: For a perfect soft-boiled egg, the yolk should be fluid while the white is fully set and the shell remains intact. - Easy to clean: Simply turn it out for washing, or place it in the dishwasher. - Microwave and oven safe: Suitable for use in microwave and oven, addressing common problems associated with traditional egg boiling pans. - Ideal gift for home cooks: A practical tool that adds convenience to everyday cooking. Use scenarios: - Quick soft- or medium-boiled eggs for breakfast, with precise doneness and minimal monitoring. - Batch cooking eggs for salads, meal prep, or meal prep bowls, using microwave or oven to prepare multiple eggs at once. - Suitable for everyday cooking tasks in the kitchen, from weekday breakfasts to weekend meal preparation, providing reliable results with minimal effort.