Please choose the correct solution to the question: How To Drink Coffee without Staining Your Teeth

Solution1: To Drink Coffee without Staining Your Teeth, rinse out your mouth with water or mouthwash after you are finished with your coffee.

Solution2: To Drink Coffee without Staining Your Teeth, rinse out your mouth with water or mouthwash before you start drinking your coffee.

Answer format: solution1/solution2
Answer: solution1