Roman bakers used bronze pans for honey cakes, as confirmed by cookware excavated from Herculaneum. Bronze conducts heat rapidly, creating quick crusts. Ancient recipes compensate by specifying shorter baking times than medieval versions, a detail that makes sense only when considering pan material differences.
Ceramic and Earthenware Dominance
Medieval European bakers preferred earthenware from 800 to 1500 CE. Museum collections show these pans have thick walls that heat slowly and retain warmth longer. Period recipes from this era specify extended baking times, often 90 minutes for cakes that modern metal pans complete in 40 minutes. Chemical residue analysis on surviving earthenware shows even browning patterns consistent with slow, steady heat distribution.
Tin and Steel Revolution
Tinned steel pans became commercially available around 1850. Patent records show 14 different designs filed between 1850 and 1870. These pans heated faster than ceramic but more evenly than bronze. Cookbooks published after 1860 begin reducing recommended baking times by 30 to 40 percent compared to earlier editions, directly reflecting this material change. Temperature testing of antique pans confirms these timing adjustments were necessary and accurate.