Every Saturday i make two tubs. They only keep for 7 days when they're in the layers, so once you mix it they last about 3 days. I mix one to feed for Sun, Mon and Tues, then mix the other for Wed, Thurs, Fri.Thanks a bunch Bea. My baby eats seeds and a spring lettuce mix. I want to start adding new things as soon as I can. Do you make a bunch and keep it for a few days? Or do you make it every morning?