What is mustard glass?

Mustard glass is a type of glassware that is typically yellow or brown in color and was popular from the late 19th century to the early 20th century. It was commonly used for mustard containers, hence the name, but also for other condiments and food items such as honey and jam. Mustard glass is often decorated with embossed designs and patterns, and some examples feature figural shapes such as animals or fruit. Today, mustard glass is collectible and valued for its unique and beautiful designs.