These funnels are made of 100% food-grade silicone, which is both safe and environmentally friendly, and will last for years without breaking, bending, rusting or corroding. The kitchen funnel is suitable for transferring liquids between containers, perfect for canning kitchen sauces, cooking wine, cooking oil, etc without leaking. It can also be used for canning shampoo and body wash replacement. Easy to keep clean even with oil. Simply wash it in warm water with a little soap or put it in the dishwasher and let the machine do the work for you.