Are there any health risk by using old shortening?

Answer 1

The only health risk to using "old" shortening, is the health risks you assume by using shortening at all. Shortening (usually vegetable shortening [hydrogenated oils/ transfats], lard or clarified butter) is usually processed so that it has a very long shelf life[years] and is no different at the end of the shelflife than at the beginning. Shortening lasts a very long time, as long as it doesn't get contaminated.