www.jamon.com

https://www.jamon.com/slice-and-store.html

Anchor text: "Store your whole, bone-in jamón in a cool, dry and ventilated place, either resting in a holder (jamonero) or hung by the rope. To preserve the freshness, moisture and flavor of your ham as it is consumed, always cover the sliced area with plastic wrap or a bit of the removed fat layer after slicing. If the meat has been left exposed to the air for some time, discard the first slice of the exposed area, as it will be dry and tough."

Wikipedia: Wikipedia:Reference desk/Archives/Miscellaneous/2017 September 16