As can be seen on the right, it thawed in my pocket and went back to being semi-transparent

The cold solidified all the fat in the ball

It’s solid gristle

r/afterbeforewhatever

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That sub is posts where the 'after' is presented before the 'before' picture, as in reverse order most people expect them. If your ball became opaque, then it fits, since the opaque picture is first, and the transparent picture is second.

Ah, misunderstood. However, the “normal” picture was taken later, after it had thawed in my pocket.

Just like Jupiter..thaw it out and it'll be translucent...