Our new silicone molds (10 " tapers) have a residue inside after about 10 pourings. The surface quality is not as nice as when they were new. 
1. Do they need periodical cleaning?  With what?
2. Does old, darker brood area wax (but clean) mold any different from nice light cappings wax?
Thanks, Ray
			
			
			
				get some mold cleaner from Mann Lake
			
			
			
				Put the molds in the freezer for an hour and they will be easier to clean.