It is correct that the red dot on the Konbach pressure cooker lid does not rise after the pot is boiled. The red dot points upward and the lid cannot be opened. It is safe and explosion-proof to prevent accidental opening. When cooking is completed, the red dot points downward, and the lid can be opened. The pressure is released to open safely. 304 stainless steel, health and safety guaranteed. 304 food-grade stainless steel is used, and the pot body is thickened with conscientious materials.