How do I care for a lustre bowl?

Wash the ceramic gently by hand using warm water and a mild detergent, avoiding abrasive cloths that might scratch the metallic glaze. Keep the vessel away from direct sunlight and harsh cleaning chemicals to preserve the delicate enamel and gilt highlights over time.

Are these bowls safe for food?

Many older ceramic pieces are intended primarily for display rather than daily culinary use due to the metallic content in the lustre glaze. Examine the interior surface for wear or historic repairs before considering any practical domestic service.

How do I distinguish Edwardian lustre from nineteenth-century pottery?

Edwardian items frequently display complex pictorial transfers and precise geometric forms like octagonal shapes, often associated with specific designers. Nineteenth-century examples tend to rely on traditional earthenware bodies and established floral or architectural patterns such as Gaudy Welsh designs.

What causes the iridescent effect on the glaze?

The optical phenomenon results from a thin metallic film bonded to the ceramic surface during a specialised reduction firing process. Light waves reflect differently off the microscopic metallic layer, creating the characteristic rainbow sheen.