To take away these deposits, the other chemistry — an acid — often works finest. However too sturdy an acid, particularly if it’s left soaking too lengthy, might make the cloudiness worse. Many Waterford vases, most likely together with yours, are constructed from glass that had lead added throughout manufacturing to make the glass sparkle. Acids leach lead from the glass, which is why Waterford warns by no means to make use of its lead crystal containers to retailer meals or drinks for lengthy. For a vase, the vital facet impact can be an etched floor the place the lead leached out.
https://www.washingtonpost.com/way of life/residence/remove-haze-waterford-crystal/2021/09/19/1f6ccf78-156a-11ec-9589-31ac3173c2e5_story.html?utm_source=rss&utm_medium=referral&utm_campaign=wp_lifestyle | The best way to take away haze from a crystal vase