Use ice cubes for long drinks and stirred drinks as well as "on the rocks" drinks. This won't cool your drink as quickly, but it will last longer and won't water down your drink. The best ice cubes are around 5 x 2 x 2.5 cm. solid. Hollow ice cubes tend to dissolve faster and are not advised. If you follow the Point of Application advice your drink will be cool when you drink it and will stay that way. Ice cubes are recommended for preparing martinis. If you add enough of them they will cool the martini without watering it down.
Fizz Ice is a small almond sized ice, which is recommended for shaken drinks. It will cool faster than ice cubes, and it will also help give some foam to the drink. Don't use it in blenders.
Cobbler Ice is chopped into smaller pieces than Fizz, but not crushed like Frappe, it's used for cooling long drinks like "mint julep".
Frappe ice or crushed ice is the fastest cooling water ice. It's recommended for blended drinks, but when you make the ice you have to put it on a cloth and Crush it with a hammer, don't make it in a blender. Once the Ice is made you put it into the blender, add a small amount of the thickest liquid and blend, then apply the rest of the ingredients. Having done this, you should end up with a very cold drink in which you can feel the little ice scales in your mouth.
Marqueta or big blocks of ice (1 mt x 40 cm x
20cm) are helpful when mixing drinks in a bathtub, but remember to put them
inside a plastic bag unless you are going to drink from bathtub immediately.