On The Rocks or Double Old Fashioned Glass?
What’s the difference between an On the Rocks Glass and a Double Old Fashioned Glass?
When shopping for barware, it’s easy to get confused by all the different glass names. Two of the most common (and most misunderstood!) are the On the Rocks glass and the Double Old Fashioned glass. At first glance, they may look similar, but they serve slightly different purposes and can completely change your drinking experience.
Whether you’re sipping bourbon neat, enjoying a classic Old Fashioned, or serving cocktails to guests, knowing the distinction helps you choose the right glass every time.
What Is an On the Rocks Glass?
An On the Rocks glass, often simply called a rocks glass or an OTR, is a short tumbler designed for serving spirits over ice (“on the rocks”) or neat.
- Size: Typically holds 8 to 11oz.
- Shape: Short, wide rim with a heavy base that feels solid in the hand.
- Use: Perfect for serving whiskey, scotch, tequila, or rum straight or over a single large ice cube.
👉 Examples:
Compass Star Longitude 11oz OTR Glass
What Is a Double Old Fashioned Glass?
A Double Old Fashioned glass, also called a DOF, is a larger version of the standard rocks glass. It’s specifically designed for cocktails that require more room.
- Size: Usually 12 to 16 ounces—almost twice the capacity of a standard rocks glass.
- Shape: Similar heavy base, but taller and wider to accommodate more liquid, ice, or mixers.
- Use: Ideal for cocktails like the Old Fashioned, Negroni, or whiskey sours that need extra space for muddling fruit, adding mixers, or using larger ice cubes.
👉 Examples:
Which Glass Should You Choose?
- Whiskey Enthusiasts: If you prefer sipping bourbon or scotch neat, a rocks glass is your best match. Its smaller size enhances the aroma and keeps focus on the spirit itself.
- Cocktail Lovers: If you’re mixing drinks or prefer cocktails with citrus, sugar, and mixers, a double old fashioned glass offers the space you need.
Most home bars benefit from having both on hand—rocks glasses for savoring fine spirits, and DOF glasses for cocktail nights with friends.
👉 Add sophistication to your barware with Rolf Glass Whiskey Glasses – timeless, durable, and engraved with designs that spark conversation.