What does BPA free mean? Did you know drinking from plastic and aluminium bottles can cause health problems? They often contain chemicals like BPA (Bisphenol a) which can leach into your food and can harm your body. That's the reason we are offering you a range of stainless steel bottles. Stainless steel doesn't contain BPA. We've got Green Bottle, a single wall stainless steel bottle and we've got Contigo, our insulated coffe mugs which again are made out of stainless steel. Our insulated coffee mugs keep your drinks cold and warm. The water bottles by Green Bottle keeps the water fairly cold too but you can't keep drinks warm in them. Both brands are BPA free and don't leach any nasty chemicals into your drinks. There are plenty of different styles, colours and designs for you to choose from. A fine choice!