Feed acid whey to animals. They may like sweet whey better, than acid whey. Whichever kind you feed them, be careful, because it can upset their digestion if they consume too much.
Use whey on the skin and hair. Some people claim that whey has excellent toning qualities for the skin and hair. Try some on a cotton ball and apply to your face as a toning agent or add a few cups to bathwater.
Uses for Sweet Whey
You can use sweet whey the same way you use acid whey, in addition to these ways below:
Reconstitute fruit juice to add nutritional value.
Make lacto-fermented drinks such as ginger ale and limeades.
Put it in your compost pile. It adds nutrients and makes thick, black compost.
Whey can be strained from cultured dairy and placed in a covered container in the refrigerator, where it will keep for several months. It can also be frozen and used at a much later date. Any way you decide to use this beneficial byproduct, be happy in the knowledge that you are adding some amazing extra nutrition to your diet and avoiding unneeded waste.