Carry only what you need
It is necessary to plan your food carefully. Make up a menu, set the ingredients, calculate the quantities, and only take that much. It is useful to have a standard measure for common food items e.g. half a cup of your usual muesli per person per meal required. Record meal plan details before the trip, and make notes about the outcome during or afterwards. For short trips, plan for and carry one emergency meal. On extended trips, it is wise to plan for and carry a whole day’s extra food. As leader, you may choose to carry a taste treat to share among the group when morale is low.