Plan Meticulously Before Buying Your Food
Wherever you are on your journey, pick a goal. If you're beginning, how about getting enough food to support your family for 2 weeks? Those with more experience can pick a longer window, perhaps 6 months to a year. Regardless, once you choose a length of time, you can start calculating.
To simplify your food storage as much as possible, figure out how much food you will need ahead of time. What are the calorie requirements for your family? Of course, everybody is different, but the general estimates for moderately active people are that men should have about 2,500 calories per day, women 2,000, and children over 6 years 1,600.
Next, list what foods your family likes to eat. How long will they last? What is their nutritional value? Whatever foods you choose, make sure you figure out how much of each type of food you must purchase to meet your family's dietary needs over the period you selected. Making these calculations before buying will streamline the process and prevent wasted food and effort.