I agree with SoapMom esspecially about the temp you heat it at. When I am doing alot with it I melt it in my soap melting pot and take a little at a time out to scent and color. The pot keeps it at a sustained temp and this way you do not have to keep reheating. When just doing a small batch I do it in the mirco but only for short bursts, some may still be in chunks but as I am stirring they melt in. By doing this it tends not to over heat. hth, Sue