"First, the container the distilled water is in, that the ozone will be bubbled into, ABSOLUTELY MUST BE MADE OF GLASS. Ozone will tear apart a plastic container and you will end up drinking plastic!! This eliminates people on feeding tubes from using this part of the treatment unless the feeding tubes are made of silicon. Everything the ozonated water touches should be made of glass, even the drinking glass. Every tube should be made of silicon."