W2R
Moderator Emeritus
Is it really cheaper? I can see WTR's point about convenience and storage, if you don't use much milk, but cheaper?
To be honest I wasn't sure if it still is, so I googled it. Here's a recent webpage on that topic:
Saving Money with Powdered Milk
It concludes that fresh milk costs between $3.50-$4.50/gallon in most places, or $2/gallon in dairy regions, and that nonfat dry milk costs less than $2/gallon.
I did a price comparison about eight years ago, but due to the convenience and storage advantages (and the fact that I am twisted enough to think nonfat dry milk is yummy) I haven't compared prices lately, and just buy it 'cause I want it and ignore the price. (See, Orchidflower? I try to LBYM but there is definitely room for improvement. )
I buy the HUGE boxes that are only available in a few stores - - you probably wouldn't save much on those itty bitty boxes that are more commonly seen.
I also buy fresh skim milk regularly, because I'm not convinced that nonfat dry milk is as good a source of vitamins as fresh milk. When the fresh milk runs out, I switch to powdered.