A typical 24 hour ration 'box' weighs about 1.8kgs which is too heavy to carry on a 'walking basis' but fine for a 'static' camp.
My 'own build' 24 hour ration bag weighs 554 grams and consists of :
1x Porridge, 1x Cup-A-Soup, 1x Plastic K,F,S
1x 700 Kcal Chicken Tikka & Rice,
1x 345 Kcal...