Our cups are made New Zealand made from a non-toxic, BPA free material, which doesn’t develop stains, smells or nasty tastes over time. We have a lot of tea drinkers praise our cups, as they love the fact they don’t have a tannin build up, nor do they leave a stain or taste. Suitable for very high water temperatures, for the likes of tea and black coffee drinks. Remind yourself of Shocking Pink, daily.