Weird formula question

[gibbinator]

I received a big free tub of powdered infant formula. I've been using it occasionally to mix with dh's purees. Opened a little bit over a week ago. There's no way in hell I'll ever use it all in a month. Is there anyway to get the unused powder to keep longer? Like if I take a portion of it and put it in the fridge?

[imimahoney]

Nope. It starts to grow bacteria so you need to get rid of it. Do you know anyone else who uses it that you can give it to?

[gibbinator]

That's too bad. I'm pretty sure that all the moms I know are breastfeeding, but maybe I'll put the question to Facebook