What are the best ways to clean and maintain a pewter beer mug to ensure its longevity and preserve its unique charm?

To clean and maintain a pewter beer mug, hand wash it with mild soap and warm water, then dry it thoroughly. Avoid using harsh chemicals or abrasive materials. To preserve its charm, polish the mug with a soft cloth and pewter polish as needed. Store the mug in a dry place away from direct sunlight to prevent tarnishing.