Batchelors Cup a Soup Tomato 93g

Cat this soup be microwaved in a mug?

What is the calorie count (per cup/serving/packet) for this soup, please? I'm ordering one in each flavor, but 'how' I use it depends on calories #

Is the $7.75 price for one box of Batchelors Cup of Tomato Soup or are there more than one boxes included in this price?

A better question would be: why are there such *lethal* amounts of sodium in *all* commercially manufactured soups?