Jigger is a measuring device, bartender's measuring device. So it looks like an hourglass, usually they are metal and they have two different measurements in each side. So for this particular one, the standard one, comes with one ounce on one side and one a half ounce on the other side. You can get anything from a half ounce to an ounce, all they way up to one and a half ounces and two ounces. This is a standard sized jigger and this is the measuring device bartenders use. So, you can use a shot glass but some of the shot glasses made by different companies come in different sizes, but you can be sure with a jigger, you're always getting the right size. Okay so an hour glass shaped, metal is best, has two different sizes – standard one ounce on the other size and one a half ounces on the other side.
Okay, this is “What is a Jigger?”.
