Water used in restaurants to clean food. With the help of technology, we are able to source water used to clean, say, strawberries or orange and distil it to use in perfume-making. It's a sustainable process and the smell you get is very close to the natural smell, so helps in experimenting more.

— Perfumer Philippine Courtiere of Symrise on materials she is experimenting with. Read more in Meet the French perfumer who likes to experiment with water used for cleaning food at Mint.