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Stones (usually basalt) are placed into an electric slow-cooker or a purpose-built device which is filled with . The is typically to 122–127 °F (50.0–52.8 °C).

Once the stones have heated sufficiently, some are placed points on the body (such as the back, , .) and others are held by the massage therapist and used to work the muscles.

Certain of massage also incorporate stones into the . These stones are usually , and are placed into a bowl of iced water before use.