The temperature of stomach acid in the human body is typically close to the normal body temperature, which is around 98.6 degrees Fahrenheit (37 degrees Celsius). Stomach acid, also known as gastric acid or gastric juice, is a highly acidic digestive fluid produced by the gastric glands in the stomach. It plays a crucial role in breaking down food and aiding in the digestion of nutrients.

The pH of stomach acid is very low, usually around 1 to 3, making it highly acidic. This acidity is essential for the proper digestion of food, as it helps denature proteins, activate digestive enzymes, and kill potentially harmful microorganisms that may enter the digestive system.

The temperature of stomach acid is not significantly different from the body’s core temperature because it is produced and contained within the body, and it needs to function effectively at that temperature for the digestive process to work properly.