Now that winter is here and the outside temperatures hover around -25c I've had to move my brewing inside. In order to do this I'm making 2.5 gallon batches instead of 5. When I scale down my recipe it tells me to pitch half a package of dry yeast. Would I be causing any damage by using the whole package? Seems silly to try to rehydrate half a pack when they are only 3-4 dollars might as well just throw the whole bugger in.