Refining Burnt Finish and Applying Polyurethane

What happens here

After burning, use 150-grit sandpaper followed by 220-grit sandpaper (with a random orbital sander) to blend any harsh burn marks or inconsistent patterns. This creates a more uniform and aesthetically pleasing burnt finish. Once satisfied with the sanding, apply a water-based polyurethane finish. The creator chose Varathane Ultimate Polyurethane, emphasizing that it can be food-safe if cured for 30 days at room temperature (65-75 degrees Fahrenheit). Pour the polyurethane into a spray gun and apply an even coat to the entire stein, ensuring good coverage inside and out. Allow the polyurethane to cure for the recommended time to ensure durability and food safety.

Goal: The burnt patterns are blended with sanding, and a food-safe polyurethane finish is applied to seal and protect the beer stein.