Can you make really good beef jerky in outer space (details inside ) ?

I think it would become radioactive with all of the gamma rays? I could be very wrong though.

^^^ In order for it to become radioactive, it would need to be exposed to radioactive isotopes, which I doubt are very prevalent in outer space. The gamma rays, being pure energy similar to x-rays (but with a much shorter wavelength) would pass through the meat & leave no traces behind.

Whether the meat would “cook” or not is a question that realistically can be answered only through experimentation by an ISS crew member. Given that the ambient temperature of space itself is generally listed as -274 (F), it seems like it would freeze solid and become jerky long before it cooked.

I agree with @sahID. It would flash-freeze-dry and become jerky. Any water would probably evapora.te due to vacuum

Beef jerky is not “cooked.” It is cured with salt, mainly, and dried.