Coffee Made Visible In New Urn (Aug, 1936)
Coffee Made Visible In New Urn
FITTED with an automatic temperature control a new type of glass coffee urn for restaurant use was recently displayed in Chicago before a group of nationally known hotel men. Through the use of a special thermostatic control the temperature of the coffee never exceeds 200 degrees or goes below 196 degrees. Amount of coffee in urn is always visible to both customer and waiter.





Because no one wants invisible coffee.
Comment by jayessell — December 14, 2007 @ 11:45 am
Would the “special heat resistant glass” be Pyrex?
Comment by Orv — December 14, 2007 @ 8:38 pm