THE SCIENCE BEHIND COPPER POT CONSTRUCTION
There is a ton of science that goes into making viable, American-made copper cookware. But in keeping from getting too particular about electrons, crystal structure and coefficients of thermal expansion, I’ll lay down the basics of what goes into making copper pots for your kitchen happiness.
We start with sheets of pure copper, which, for you metalheads out there, is a phosphorous deoxidized grade (so it tins best) that is then cut using water pressure into discs by our awesome fabricators at Ohio Metal.
The discs are then placed on CNC machines, where they are hand-operated to spin to the Housekeeper Crockery specifics read off the CAD design we sent down. Copper hardens/anneals as it is drawn up, so the operator has to have a feel for the metal, and know if it’s going to be drawn too quickly and the pot would collapse, or if the machine is spinning too slowly, and the copper hardens too soon and cracks as it finishes.
Once the copper body components are done, the cold forged copper rivets, sourced from Wisconsin, are used to attach the iron handles (for a process on how the handles are made, you can revisit the cast iron process as it’s the same!). From there, the pots are sent up to the tinner, who hand wipes the insides of the pot with tin, cleans them up and prepares them to ship to us.
(This is the short answer, to be honest. There are about fifty tiny small steps involved, from prototypes, samples, shipping, hiccups, annealing, heat processes, and the like, but at the risk of sounding too much like an overexcited scientist, I’ll keep this as brief as this!)
When they arrive, we inspect, check, and carefully pre-wrap the pieces until you want to invest in some real, American, serious cook wares that should last you at least a few hundred years!