Manufacturing & Materials

Vitrelle^® Glass
Each piece of Corelle^® glass dinnerware is like a sandwich, consisting of two different glass compositions (core and glaze). The lamination results in Vitrelle^® glass that exceeds the normal strength possible for any single glass composition. Put simply, lamination does for glass just what it does for wood: It yields a finished product that is much stronger than the individual components from which it is made.

The Pressware Manufacturing Plant in Corning, NY, is a Corelle® production marvel. In just under 15 minutes, plates and bowls go from molten glass to finished product – sealed with an easily removable protective wax coating and placed in a packing case. Due to this incredible speed, the Pressware Plant produces up to 100 million pieces of Corelle^® glass dinnerware each year.

Corelle’s Livingware™, Vive™, Impressions™, and Square™ lines of glass dinnerware are made from “Vitrelle 1”, the original Corelle glass material known for its strength, durability, and versatility. Corelle® Pro™ is made from “Vitrelle 2”, a glass product made in the same hub lamination process but with a core glass that is 70 percent thicker than our original material.

We are so confident in the strength and durability of our dinnerware , we offer a three-year warranty on all Vitrelle^® glass dinnerware items and a five-year warranty on all Vitrelle^® 2 glass dinnerware items. Corelle® will replace any Vitrelle^® dinnerware item that breaks or chips under normal household use.

Hearthstone™ Stoneware
Corelle^® has worked closely with overseas partners to manufacture the Hearthstone^® collection of dinnerware. To meet our durability standards, we offer a one-year warranty and will replace any stoneware dinnerware that breaks or chips under normal household use.