Metal Flash Flask

The Metal Flash Flask is a pocket-style barware accessory from Esplanda, made of metal. Flasks like this are designed for carrying a spirit you have already chosen, not for serving it. Metal suits that job because it doesn't break in a bag or jacket pocket the way glass can. The listing doesn't state capacity, wall finish or closure type, so check those on the product itself before relying on it for a particular volume. A flask works best with spirits that taste good at room temperature. That means aged whiskeys such as bourbon, rye and Scotch, plus dark rum, brandy and reposado or añejo tequila. Clear, lightly flavored spirits are better chilled in a glass, so they are a weaker fit for a flask. Cocktails that are stirred and served undiluted, such as an Old Fashioned or a Manhattan, can be pre-mixed and carried in a flask. Anything built on citrus juice, soda or egg white doesn't travel well, so mix those fresh. Metal flasks can pick up a faint taste from what was stored in them before. Rinse the flask with warm water after each use and let it dry open. Keep one spirit per flask, because strong styles like peated Scotch tend to leave a lingering note. To drink from it, pour a small measure into a rocks glass or a Glencairn-style nosing glass. That lets you smell the spirit properly, which a flask opening doesn't.