These whiskey glasses are super easy to use. Just pour your favorite whiskey into the glass and enjoy. When it comes to cleaning, use warm, soapy water and a soft cloth to gently wipe them clean. Avoid using abrasive cleaners as they may scratch the glass. Don't put these glasses in the dishwasher, as the high - pressure water and harsh detergents can damage the delicate crystal. Store them in a safe place, like a padded cabinet, to prevent them from getting chipped or broken. With proper care, these glasses will last you a long time and keep enhancing your whiskey - drinking experience.