Most protein powder will clump up if it gets too hot. It will also clump up if added too quickly to hot stuff, where you might be able to get away with a gradual introduction. I think of it like cornstarch lumps.

When I make protein'd coffee, I first dissolve the protein in a small amount of cold water or milk, then I use my K-Cup coffee maker which slowly streams the coffee into the protein while I stir. This makes the drink perfectly. If I just make the coffee on the powder, it will end up with a chunky/cooked icky texture. If I just let the coffee go onto the mixed powder directly, it still 'cooks' a bit.

For hot cereal, I generally make my oatmeal without it and then after cooling a few minutes (to nearly cool), I add powder and stir. I have clumped it in oatmeal if I don't cool it enough.

So if you know it is possible, you can play with it to find the right way to add the powder without cooking it.

Rob

I agree, temper the protein mix first in a warm liquid and then slowly stir it in.

musclegen genepro protein powder can be added to hot stuff without tempering it first. I toss a scoop in the bottom of my mug, add coffee, and then add SF creamer every morning. It also stirs in easily to hot stuff, I often add some to soups to amp up the protein.