Can I Microwave a Bowl With Gold Trim?

Arcing Problems

• When you place a bowl with gold trim inside the microwave, you experience a problem known as arcing, which occurs when the microwave reacts with the metallic trim. According to the U.S. Department of Agriculture, the same problem occurs when you place a twist tie or any metallic object in the microwave. Depending on the type of bowl or level of metallic border, you may notice a loud or soft popping noise coming from the microwave. In some cases, you will even see sparks inside the machine.

Warning

• Corelle Corner warns against using any CorningWare or Pyrex branded pieces with metallic decorations, including platinum, silver or gold designs in the microwave. The sparks put off by the metal may cause burning on the bowl. Burning occurs on the inside of the bowl when the sparks fall inside. You also risk burning the decorative design on the bowl as the metallic reaches a high temperature and the metallic elements dissolve. In some cases, the sparks can even lead to a fire inside the microwave.

Considerations

• In a few cases, you can microwave a bowl with gold trim, but only if the trim is not gold. According to Corelle Corner, the company produced a line of items under the French White banner that had a gold trim around the edges. The trim featured a duller shade of gold, similar to brass or copper, and did not contain any actual gold. The manufacturer included information inside the pieces stating that the pieces were microwave safe. Unless your bowl includes paperwork designating it as microwave safe, do not use it in the microwave.

Expert Insight

• The Department of Agriculture says that arcing inside the microwave will not damage the machine. Keep an eye on the microwave, and if you see sparks or hear a popping sound, immediately turn the appliance off. Remove the bowl, and place the food inside a bowl labeled as microwave safe. Even a small amount of metal on an otherwise worn-off trim may cause arcing.