Mosser Glass, Inc.

In this section, we would like to take you through the step by step process of glass manufacturing at our facility.

If you would like to observe the process in person, Mosser Glass provides tours of our facility. Please contact us to schedule a tour.

view of kiln

Heated

We currently have 2 day tanks and 3 pot furnaces. They are fired by natural gas. The raw materials such as Soda Ash and Silica Sand are raised to a melting point of 2500f. Working temperature varies from 1800 - 2000 F.

placing molten glass into mould

Moulded

The cast iron moulds are warmed at a temperature of up to 1000 F.from 1-3 hours before production begins. The next step is the pressing of the glass. A person called the gatherer will bring the amount of glass out of the furnace needed depending on the size of the piece.

glass released from mould

Pressed

The molten glass will then be pressed into the pattern of the mould. after a minute or so to cool the mould will open to display a newly formed piece of glassware.

hardening of glass

Hardened

Once the piece is brought out of the mould, it will be given additional time to cool and harden with a little help of air blowing on to the glass.

view of glazier

Polished

An important part of the process is polishing. Most of our pieces go through a glazer which fires the glass and melts off the very outer layer, leaving it with a smoother, shinier finish.

view of cooling oven

Annealed

After the glazer, the glassware goes through a three and one-half hour annealing process that slowly cools the glass to prevent it from shattering or breaking. Then, it is carefully checked and packed for shipping or sent to our stock room.

Mosser Glass, Inc. | 9279 Cadiz Road | Cambridge, OH 43725

site design : high medium