This document provides an overview of the importance of ice in cocktails and the steps some bars and restaurants take to ensure their ice is clean and pure. It discusses how ice inhibits taste receptors to make alcohol taste less strong, and how water quality can impact the taste of ice and drinks. Some key points: - Bars filter their water before making ice to remove impurities that could impact drink flavor. - Using more ice results in slower melting and less drink dilution. - Home bartenders can use distilled/bottled water or filters to improve their ice water quality.