After making any kind of cheese, I end up with lots of whey--up to a gallon of it. It's valuable stuff! Whey has a lot of minerals. It keeps your muscles young, joints movable and ligaments elastic (a natural anti-aging tonic for us boomers). It can aid digestion (1 TB in a little water). It can treat stomach ailments (1 TB three times daily.) It tastes like (very) watered-down milk. It keeps for up to 6 months. I use it for all kinds of things: breadmaking (substitute for milk or water), cooking rice, in smoothies or breakfast drinks, as a tonic.
Following is a standard whey drink--a healthy way to start your day.
1/2 cup whey
1/2 cup filtered water
juice of one lemon
--Mix all together and drink soon after. Don't store, it will lose its potency.