Why don’t you use glass bottles?
At the moment, plastic is the most environmentally friendly option we can choose. It needs fewer resources to create, fill, ship and distribute than glass. We use PET #1 plastic because Polyethylene terephthalate (PET or PETE) #1 does not leach, it’s considered the safest choice for single use plastic. Also, this type of plastic is the most efficient type for recycling. It’s much lighter than glass, so we have to use less fuel for transport and you will have less weight to carry, glass is up to nine times as much weight than plastic.