When heating the paste, either by microwave or oven, be absolutely sure the paste is just warm to touch not quite. This will avoid blunting and clogging the razor too instantly. Not many want to be participating in such a battle. https://gqcqft7mv3dooj4h3gzmuf3szv5y3jh76Qijeugi5xsoe522lyna.cdn.Ampproject.org/c/Iled.snu.ac.kr%2Fbbs%2Fboard.php%3Fbo_table%3Dfree%26wr_id%3D373432