For the professional bartender, shakers are one of your number one tools of the trade. For the home bartender, they are not just functional; they also make you look really cool.

Of course, if the top piece and the bottom piece get stuck together, that really doesn’t look cool at all. And on a busy night of bartending, it can slow you down, adding up to impatient customers and fewer tips.
Once you know why this happens, though, it’s easy to figure out how to remedy the situation. When a material changes temperature, it also contracts or expands slightly. With a quality martini shaker that’s built to be a snug fit, the chilling factor of ice inside can make that fit even tighter when the metal contracts. So if your shaker is cold and the pieces are sticking together, simply run some warm water over it. Running warm water over the top will be especially efficient; the top will expand, allowing you to disassemble the shaker without further trouble.
Now let’s say you have what is sometimes known as a “cobbler shaker.” This is a shaker with three basic parts: a tumbler, a lid with a built-in strainer, and a cap to cover the strainer. These shakers make it easy to shake and strain a cocktail with minimal fuss. However, if you put this bar item through a dishwasher with the top cap on, you could have a very tough time removing the cap later. The high temperatures can cause the top piece to expand into the cap, and it can be difficult to pull the two apart.
For best results, disassemble the entire shaker before washing and store it with the cap inside the tumbler and the top inverted into the tumbler. Also remember that it is easiest to reassemble the shaker when all parts are at room temperature. (If one part is very warm or very cold, it might seem as if the shaker is warped or inappropriately sized.)
It’s Friday and this is the weekend of the big game; get your liquors and your shakers in order and get ready to pour!