About This Better Flavor: The espresso cooling ball rapidly chills your espresso to preserve delicate notes and prevent over-extraction. It reduces bitterness to deliver a smoother and more balanced taste to your espresso. Reduced Dilution: The enlarged frozen balls chill espresso more effectively. For iced coffee, please use them alongside regular ice cubes to chill your drink for minimizing dilution, keeping your iced coffee full-strength and smooth. Safe & Premium: Only the finest materials touch your coffee. Crafted from 304 stainless steel with seamlessly sealed glycerin & water inside for a superior chilling effect. Easy to Use: Simply freeze the ball in its storage box for 4 hours. Then place it with the stand on your cup and brew espresso through it. It's dishwasher safe for effortless cleaning. Warm Note: 1. Please place the ball upside down when the height of your machine is limited. 2. If you want to make iced coffee, regular ice cubes may still be necessary. Great Gift Idea: The espresso cooling ball is a thoughtful and unique gift for birthdays, housewarming parties, Christmas, Thanksgiving, holidays, or any occasion. An essential espresso accessory for coffee enthusiasts.