Don't think of better bottles as plastic- think of them as flexible glass, because they are made from a special, scientifically tested, PET, which does not have all the disadvantates of other plastics. Better bottles are 1) Unbreakable 2) Taste and odor free 3) Impermeable to air 4) Clear and colorless 5) Incredibly light weight 6) Stain resistant. They are easy to sanitize and have wide precision openings for which leak-tight non-jamming closures are available. Optional adjustable outlets make dispensing or racking by gravity simple and convenient. If you don't wish to use a Better Bottle closure, use a #10 drilled or solid gummed rubber stopper. CLICK ON THE ITEM NAME TO SEE THE FULL DESCRIPTION OF EACH ITEM.