Most likely this is a cloudy mineral build-up from the salt. Make sure to rinse and dry it thoroughly when you clean it.
jkalb42 Reviewed by jkalb42 on . Cleaning Glass Pipe Question I am a newbie here but have a question: I am cleaning all of my glass pipes using the trusty baggie, rubbing alochol and salt method. One of my two pipes looks brand spankin new again. However, my newer one has a white discoloration on the inside. Does anyone know what causes this or how to get it out? I soaked this particular pipe over night and even heated up the alochol a little in the microwave but NOTHING is getting this white stuff out. Any suggestions? Rating: 5