Pennying happens when you use copper in a forge before someone uses it for certain iron projects. I'll let Life-Partner explain:
The copper contamination makes certain methods more difficult or impossible due to how the copper interacts with the iron, forge welding is totally impossible in a contaminated forge. It is called pennying due to the fact that the main cause of the contamination is the prank of tossing a penny into another smith's forge.
Thanks for asking. (Also, I'm now heavily judging all the people who think that counts as "prank" and not "industrial sabotage".)
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mmmag
no subject
Date: 2017-08-05 08:23 am (UTC)The copper contamination makes certain methods more difficult or impossible due to how the copper interacts with the iron, forge welding is totally impossible in a contaminated forge. It is called pennying due to the fact that the main cause of the contamination is the prank of tossing a penny into another smith's forge.
Thanks for asking. (Also, I'm now heavily judging all the people who think that counts as "prank" and not "industrial sabotage".)