The t-sac is an innovative filter used for brewing loose leaf tea. It is made from unbleached, chlorine-free paper and designed with a slide opening for easy filling. The expanding base allows ultimate brewing while also supporting the sac without the use of a filter holder. They come in five convenient sizes for use in mugs, large teapots and everything in between. t-sacs allow you to enjoy the fresh, natural taste of loose leaf tea without the hassle of conventional straining methods. Size 1 for 1 cup or mug of tea, size 2 for a 2 - 4 cup teapot, size 3 for 6 - 8 cup size 4 for 8 - 12 cup teapots. With the growing popularity of loose leaf tea in the UK, there’s a variety of tea filtering devices like mesh strainers and infusers. While most are effective, problems may arise with finer grade teas, causing leaves or leaf particles to escape into the cup or pot. The cleanup may also be time consuming, making them inconvenient for tea drinkers on the go.The German tea filter enterprise t-sac® GmbH has invented this product to bring the convenience of a tea bag to loose leaf tea drinkers. These revolutionary filters, called t-sacs, combine a patented slide opening and an expanding gusset bottom. With these features the sac is easy to fill and the tea has room to properly expand. Because of its wide bottom, the sac does not require a filter stand. With t-sacs you can control the amount of tea that goes into each sac and blend teas for a custom flavour. While steeping the flap can be folded, twisted, and/or secured with the lid of the teapot.The filter paper used for t-sacs is all natural and unbleached, making it an eco-friendly product. Since the paper contains no artificial ingredients, it will not taint the flavour of the tea. t-sacs are disposable and completely biodegradable, and after use filled sacs can be used in compost and gardening. t-sacs are are a user-friendly and environmentally safe loose tea filter.