The purpose of a hot wrap is to heat the tissue, with the application of moist heat to the penis. The tissue when heated is more elastic and less likely to be injured during the course of the exercises.
Primary method is the repeated application to the penis of a facecloth or similar soaked in warm water. The water used to soak the facecloth should be as hot as possible without causing burning or pain. The facecloth should be wrung out slightly and then wrapped around the penis, avoiding the scrotum. Once the heat has faded, the facecloth should be soaked, wrung out and applied again. It may be necessary to reheat the facecloth as much as every 30 seconds. While the facecloth is wrapped around the penis, massage the penis through the facecloth. Repeat this for at least 5 minutes and as much as ten.
An alternate method for hot wrapping is the use of a rice sock. Fill an ordinary sock with uncooked rice. Tie the end of the sock and place in a microwave. Heat for 30 seconds or more if necessary. Apply the rice sock to the penis and hold in place for 5 minutes.
The are many other methods used to heat the penis, if the above two do not work for you, search the forum for alternate methods.