Thoughts about post race recovery shake

I have heard a recovery drink within 30 minutes of exercise is beneficial, so I decided to make my own with pure maltodextrin, glucose, and whey isolate protein in a 3:1 carb:pro ratio. It’s super cheap to make your own and I don’t feel that nagging hunger after races or workouts. I generally feel better drinking one than if I don’t but it could be mental.