when treating frostbite, the temperature of th...

When treating frostbite, the temperature of the rewarming water bath should generally be comfortably warm, not hot: most medical and wilderness guidelines recommend about 37–42 °C (roughly 99–108 °F), with many settling on 40–42 °C (104–108 °F) as the target range for rapid rewarming of frozen tissue.

If you are looking for a quick, safety‑focused takeaway (for first‑aid style advice, not a substitute for professional care):

• Use warm water that feels very warm but not painfully hot (around the temperature of a hot bath you could keep your hand in comfortably).

• Do not use dry heat sources like stoves, fires, or space heaters directly on the frostbitten area, because numb tissue burns easily.

• Maintain the water at a steady temperature within that warm range until the skin becomes soft, pink or reddish, and pliable, which may take 15–30 minutes or more.

Because frostbite can be serious and may be associated with hypothermia or deep tissue damage, any suspected significant frostbite should be evaluated by a healthcare professional or emergency services as soon as possible.