These carrots can be kept in a covered container in the refrigerator for 4 days or in a freezer bag for up to 3 months. Reheat the carrots by warming them in the microwave at 30 second intervals, or in a pot on the stove with a little bit of water added. Be careful not to cook them too long when reheating, or they will be mushy. Allow frozen carrots to thaw in the refrigerator before reheating.