I am making a 1/2 batch of hot crossed buns. The recipe uses canned evaporated milk. I used 1/3 cup for the 1/2 batch. I am going to make another 1/2 batch next weekend. Can I save the can of evaporated milk until next weekend? I will put it in a jar, or plastic container in the fridge until next weekend. Not sure if it will stay good. Hate to waste it... Any thoughts?