From The Kitchn: Is It Safe To Leave Butter Unrefrigerated? Faith Durand Oct 1, 2008 Kitchen Home Share Pin It Email Share Email Share Email Is it safe to leave butter out of the fridge in a butter dish? Can it be left unrefrigerated for a few days? How long is too long? • Click here to read full post at The Kitchn: Good Question: How Long Can I Leave Butter Out? Share Email Comments have been disabled.