Yes, just bear in mind that whole milk is not as shelf stable, even in powdered form, because of the fat content compared to non-fat milk. If you are rotating stock, then it shouldn't be a problem, but if you sequester it for long term storage, look out.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)