Buying package free means needing to have containers to buy things that you can't hold with your hands, for instance, like I buy bulk olive oil, so I bring a Mason jar to fill it up; I'll pick up some beer from a local shop that sells it in growlers that are actually reusable, so that's like a totally waste free way to drink.
購買無包裝商品表示你必須自備容器去裝,舉例來說,我買散裝的橄欖油會帶玻璃瓶去裝;我會去有玻璃瓶裝啤酒的本地商店買啤酒,那些玻璃瓶都可以再使用,所以喝啤酒也不會製造垃圾。