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A 72-Hour Kit Isn't Three Days of Meals — It's a Weight Problem

By Sara Jane Shelvock·November 2, 2026

People ask me about 72-hour kits at flea markets all summer, usually right after they pick up a jar of my freeze-dried blueberries and announce they are prepping now. I love these conversations. I also love being the person who tells them what a kit actually costs you in pounds.

The standard advice is to have three days of food and water ready. That sounds straightforward until you actually try to build it, and then you discover the real difficulty: filling food is heavy, and a kit you cannot carry is not a kit. My husband Bryon learned that the hard way when we built our first family kit together. He filled it with canned soup and stew, then tried to pick it up. Our kid watched him strain and asked whether the bag was supposed to be able to run.

The Calorie Target

Emergency guidance points to 1,500-2,000 calories per person per day for a 72-hour kit. For one active adult over three days, that's roughly 6,000-7,200 calories total. I want you to feel that number, because I used to think three days of food meant three granola bars and a bag of trail mix. It does not. It means a real stack of food, and food weighs what it weighs.

Then comes the water, which is where people stop and stare at me like I made the numbers up. Water guidance runs about one gallon per person per day, and water weighs about eight pounds per gallon, so the water alone for three days is around twenty-five pounds before you add any food. Twenty-five pounds of water. I have carried less than that through a Kinnick Saturday crowd, and I was not happy about it.

Why Dense Food Fails the Test

So the obvious move is calorie-dense food, right? Except calorie-dense food is usually not what you'd want to eat under stress. Think about the last time you were stressed and scared — were you reaching for a can of stew? I know I was not.

Canned goods are heavy and need a manual can opener, which people routinely forget. I have found three manual can openers in my kitchen drawer and I still could not tell you where our kit one is. That is how that goes. And the pack-everything instinct fails here too, because more stuff is more weight, and weight is the whole problem.

The Standard Go-Bag Contents

Preparedness lists converge fast, and they are long. Here is the standard set: non-perishable food, bottled water, spare socks and underwear, sturdy shoes, jacket, hat and gloves, rain gear, toilet paper, paper and pencil, tissues, pre-moistened towels, plastic bags, sunscreen.

Then essential medications and multivitamins, waterproof matches and candles, fifty feet of nylon rope, a knife, a whistle and signal mirror, a manual can opener, utensils, a compass. And separately, because at our house these live in their own tote: a first aid kit, hand-crank or battery radio with spare batteries, flashlight, local maps, blankets or a sleeping bag, flares.

I read that list out loud to Bryon once and he asked which of those items our kids were going to carry. Good question, and it is the reason I do not pretend this is a one-adult backpack. But it is the list, so it is the list.

Where Freeze-Dried Food Actually Fits

Now my part, and I have to be straight with you because I sell this stuff. Freeze-dried meals require water to rehydrate. They are not ready to eat. That means they are a secondary option, not a primary one. If your kit is already too heavy and your water situation is uncertain, my product is not your first line. It is your backup.

The honest division of labor looks like this. Primary, eat dry: protein bars (200-400 calories, at least 10g protein), jerky or meat sticks, single-serve nut butter packets (~190 calories each), trail mix. Backup, needs water: freeze-dried meals. Dry food first, because food you cannot eat is just heavy decoration. I would rather my freeze-dried chili be the backup nobody needs than the dinner that fails because there was no water.

How to Pack It

Packing matters more than shopping, and I learned that during a production run when we were re-organizing our own emergency closet. Outer pockets: snacks for the current day. Main compartment top layer: one day's food in a labeled bag. Middle: days two and three, pre-portioned. Bottom: freeze-dried backup meals and comfort food.

Labels, always. Our kids found the unlabeled bag first, of course, and ate day two at 4 p.m. on day one. When you are tired and it is dark, you grab what is closest. Day one needs to be the closest thing.

The Rotation Problem Nobody Mentions

Rotate food and water every six months. Store what you eat, eat what you store. That is the whole discipline, and it is the part everyone skips, including me, until I set a calendar reminder and bribed myself with the first jar of fresh peaches.

A kit full of food nobody would normally eat is a kit that will not get maintained. If I would not choose it on a normal Tuesday in Iowa City, it does not belong in the bag. That is why our emergency shelf is stocked with the snacks we actually eat — the strawberries, the apples, the bananas — and why I will eat my own backup meal on a Sunday just to prove the kit still works.

So the kit is not three days of meals. It is a weight budget, and once you see it that way, every choice gets easier.

Stay curious. Stay crunchy. Stay cosmic.

— Sara Jane Shelvock, CEO, Torus Coffee Company LLC

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