Using the Nella Barkeep 2 - Piece Boston Cocktail Shaker Set is easy. First, add your ice, spirits, and mixers to the 28 - ounce shaker. Then, place the 16 - ounce mixing glass on top and give it a good shake. When you're ready to pour, use the built - in strainer to separate the ice from the drink. For best results, hold the shaker firmly and shake vigorously for about 10 - 15 seconds. As for maintenance, since it's dishwasher safe, you can simply pop it in the dishwasher after use. However, if you prefer hand - washing, use warm, soapy water and a soft cloth. Make sure to dry it thoroughly to prevent any water spots. Also, check the removable rubber seal regularly and replace it if it shows signs of wear. When not in use, you can display it in your home bar or store it in a dry place.