Mold cleaning

trying to determine best practices for cleaning molds. IceTechworld.com has suplied many mold cleaning applications with dry ice blasting equipment where downtime has been decreased substantially however there are many who are not using this techology. I'm trying to determine if there is a better practice or if there have been any negative experiences using dry ice blasting so I can understand why this practice is more common. Our customers have all had great success cleaning molds using dry ice blasting and consider it a best practice.