Why is PET plastic better than glass?
Better-Bottle carboys and fittings are actually less likely to impart or transfer flavors and colors than glass carboys and related equipment. The special PET used to make Better-Bottle carboys is pure and imparts no odors or tastes. The surfaces of Better-Bottle carboys and fittings are so non-porous and hydrophobic that they wash easily and rinse down very quickly. Glass carboys must be scrubbed with bleach to remove the build up of hydrophilic films. Also, the rubber and plastic stoppers, hoses, and siphon tubes used with glass carboys are notorious for contributing and transferring flavors.
