Extreme things can happen like shrinking or getting so dry and crispy that it can rip.Yeah, what happens to the goat?
Willyto is right. HWT can dry out goat and make it brittle. HD told me awhile back that on goat you CAN use cold water, and I did shape my goatskin collar successfully that wat (CWT). Deer is new to me which is why I ask.
I would doubt it would have much impact. And it might end up stained even with just water.
It's way to soft and pliable.
I've got deer and elk items and it would not be worth trying, IMHO.