Evap is milk with 60% of the water removed, vitamins added, heat treated and put in cans. If you add the same amount of water to it, it doubles as fresh milk without all the hassle of fridges and things. Its brown and has a funny taste due to the heat treatment. IT IS VILE!
Condensed milk is water reduced and then sugar added and then canned. It isn't heat treated (the sugar keeps it from going off) and was used in the war for troops as it has high calories, protein, fat and carbs. IT IS VILE!
That is all.