AITA husband spilled water in our only can of formula

I feel like I’m going insane here so I just need an outside opinion on this. My (30f) husband (33m) spilled water in our only can of formula that we have right now and didn’t tell me. I found out when I opened the can over an hour later and there was a bunch of goopy, mud-like formula inside. He didn’t flood the can, but it wasn’t just a few drops of water either.

When I found out and went to tell him that I needed to go get a new can because the old can is essentially no longer safe to use. He got angry and said that was stupid and we could just still use the parts of the can that are still dry. I reiterated that I didn’t think the can was safe any longer and he said again that that was stupid and that I’m just going to waste a bunch of money for no reason.

AITA for thinking the can needs replaced? I hope that makes sense