Our tea infuser is made of high-quality food-grade silicone, healthy and durable. These tea bags are custom-designed for loose leaf tea, the tea leaf particles won't escape out and into your tea. They also won't release other flavor but the alluring small of tea. After discarding the used leaves, just rinse with warm soapy water or throw it in your dishwasher, no spot will be left on the surface. Custom logo on the label is available.