In our passion to persevere for the finest tea experience for you, we’ve taken care to see that each detail matters. The unbleached thread of the Rakura tea bags is 100% cotton and 0% harmful chemicals and bleaching agents, ensuring that they don’t interfere with the flavor or your health. While the food grade tags, also made from natural fibers are finished with just the right thickness and texture for you to hold and dunk the tea bags appropriately.