Using this Final Touch cocktail shaker is super easy. First, fill the 27 oz shaker with your desired cocktail ingredients, then attach the 15 oz mixing glass tightly to form a seal. Give it a good shake for about 10 - 15 seconds to blend the ingredients well. You can then strain the cocktail into a glass. Remember, this shaker is for handwashing only. After each use, wash it with warm soapy water and dry it thoroughly to maintain its appearance and functionality. Avoid using abrasive cleaners as they may scratch the stainless steel and glass. Keep it in a dry place when not in use to prevent rust or damage.