A test tube glass is honestly just a typically test tube. In the context of alcoholic drinks, is a slender, cylindrical glass designed to resemble a scientific test tube. Since they are used in bar settings, the glass is usually replaced with plastic to prevent shattering, do to the small & thin design and the atmosphere they are typically used int. Typically holding between 1 to 2 ounces, this unique glass is used for serving novelty shots and layered shooters. The narrow shape allows for the creation of visually striking layers, showcasing the different colors and densities of the ingredients used.

Test tube glasses are popular in party settings and themed bars, where they add an element of fun and creativity to the drinking experience. They are particularly effective for serving small, flavorful shots that are meant to be consumed in one gulp. The clear glass construction highlights the vibrant colors of the cocktails, making them an eye-catching addition to any event. The playful and scientific appearance of test tube glasses makes them a favorite for innovative and entertaining drink presentations.