Did you just get your new food/water rank and can only make 2 a time? Takes ages to get how many you want doesn't it? Well i found this out on my mage awhile ago and since Lazy leachers can't search i thought i'd post it. If you leave food/water in your bank it wont go after 15 minutes of logged off.
But then you could always join an arena and make them or ask a high level mage to make you 100 ;p