Refrigerating formula bottles?

Lately my daughters been fussy with eating in a sense. She will seem hungry and we’ll make a bottle for her but she will only drink an ounce or so then not want it or start chewing on the bottle nipple. But then like 20 minutes later she’ll want to eat again. This has led to wasting quite a bit of formula the last few days. If we start to feed her a bottle and she only drinks from it for a few minutes and doesn’t finish it, can I put a bottle in the fridge for 20 minutes or so to delay it going bad if I’m going to feed the rest of it to her later?