At what temperature does scalding start to cause pain?

Scalding can begin to cause discomfort and pain at temperatures around 110°F. This temperature is significant because it is near the threshold where the skin's sensory receptors start to react to the heat, leading to sensations of pain and injury. Prolonged exposure to water at this temperature can result in burns, particularly in vulnerable populations such as children and the elderly, whose skin may be more sensitive.

At temperatures lower than 110°F, while hot water may feel warm, it is generally not considered to be scalding or painful. As temperatures increase, the risk of burns heightens; for instance, at 120°F, the potential for scalding injuries increases significantly, and exposure may lead to more severe burns. Therefore, understanding the pain threshold related to temperature is crucial for preventing injuries, especially in situations involving heated substances.