smelly rendered lamb fat!

[piccololily]

How do you keep the rendered fat from an animal from smelling baaaaad. Pun intended. Am I doing it wrong, or will it always smell yucky? I would like to use the tallow for soap, but I can't imagine being able to disguise the smell! So far I have only done deer and lamb.

[Bearfootfarm]

Deer fat tends to go rancid quicker than most other types.
Lamb fat contains a lot of lanolin, which can also give it an "off" odor.
Beef and pork fats tend to last longer for some reason

[piccololily]

Well, both were rendered the same day as killing and kept refrigerated. Will cooking it too long cause a stronger smell? It didn't burn. Can I use it for anything, or de-odorize it somehow?