Each product is mentioned in its description. All products belonging to the categories Steel, Silver, Gold retain their durability regardless of the way you treated them (contact with water, creams and colognes). This means that they do not tan and retain their color. Many of the products have gilding (a layer of paint on top of their material) which needs your attention for their long-term preservation.
In any case where the product does not belong to one of the three categories will be mentioned in the description of the message to avoid its use with water.
