What is Enamel Mug Made Of?
Enamel mugs are crafted using two primary materials: metal and enamel coating. Here’s a breakdown of both components:

1. The Metal Core
The core material of an enamel mug is typically steel or cast iron, though lightweight mugs often use aluminum. This metal base is what gives the mug its strength and durability. Steel is most commonly used for enamel mugs because it is corrosion-resistant and can withstand the enamel fusing process, where temperatures reach over 800°C (1,500°F).

Some high-quality enamel mugs use cast iron, but these are heavier and generally used for specific purposes like cooking over an open flame. Aluminum enamel mugs, while more affordable and lighter, may not have the same durability as their steel counterparts.

2. The Enamel Coating
The second key component is the enamel coating, which is made from powdered glass. The powdered glass is applied to the metal mug in multiple layers and then heated to high temperatures in a kiln. As the mug heats, the glass particles melt and fuse to the metal, forming a smooth, hard, and glossy coating that is resistant to chipping, scratching, and heat.

The enamel coating provides a non-reactive surface, meaning it won’t impart a metallic taste to your drinks. This is particularly important for those who enjoy acidic beverages like coffee or tea, as the coating protects both the flavor and the metal from corrosion.