Prepping has an image problem. The word conjures bunkers, buckets of freeze-dried meals with a 25-year shelf life, and garages stacked with bottled water. Much of the prepping industry is built on fear, and fear sells a lot of plastic.
The UK’s Be Ready campaign asks for something far more modest: enough water, food and basic supplies for three days, a written plan, and a conversation with your neighbours. That is not survivalism. It is ordinary good sense, of the kind most households practised as a matter of course a few generations ago.
This guide looks at prepping through a different lens. How do you put together emergency supplies without buying a pile of new things? Which items have lower-waste, longer-lasting alternatives, and where is it better to stick with the standard option? And what does self-reliance really mean, if it is not about stockpiling?
The most sustainable emergency kit is the one you mostly already own.
What Prepping Means in the UK in 2026
On 22 October 2026, the Cabinet Office launched Be Ready as the first stage of a three-year campaign. It asks households to be ready for three days of disruption from events such as severe weather, cyber incidents and interruptions to power, water, phones and the internet. The same three-day benchmark is used in France, Ireland and the Netherlands.
The official checklist covers water, food, hygiene, light, warmth, a radio, a power bank, cash, documents, first aid, medication, and supplies for babies and pets. It also encourages people to sign up to the free Priority Services Register if they are eligible, make a household plan and check on others.
For a full walk-through of the official advice and how to make a household plan, read Be Ready Emergency Preparedness. This guide focuses on how to meet that advice in a way that is lower-waste, longer-lasting and less dependent on buying things.
Before You Buy Anything: Audit What You Have
The government’s checklist starts with a simple instruction: check your cupboards first. It is also the most sustainable step in the whole process.
Walk round your home with the checklist and look for:
- Torches, including bike lights and head torches from camping trips
- Batteries, chargers and power banks, and whether they still hold a charge
- Blankets, sleeping bags, wool jumpers, hats and gloves
- A first aid box, or the plasters, bandages, antiseptic and painkillers scattered around the house
- Tinned and dried food you already eat
- Clean, reusable containers suitable for water
- A battery or wind-up radio, including any in the car or garage
Most households will find they already have more than half of what they need. The aim is to gather it in one place, check that it works, and fill only the genuine gaps.
Our No-Buy and Low-Buy Year planner and Should I Buy This? tool can help you pause before adding anything new. The full eco living checklist covers the rest of the home.
Every item you do not buy is one less thing to manufacture, ship, store and eventually throw away.
Emergency Supplies and Their Eco Alternatives
Some items in an emergency kit have genuinely better long-term options. Others do not, and it is important to be honest about where the safest choice is the standard one.
| Supply | Standard option | Lower-waste alternative | The trade-off |
|---|---|---|---|
| Drinking water | Single-use bottled water | Larger multi-litre bottles, drunk and replaced in rotation | The government says bottled water is the safest way to prepare. Larger bottles cut packaging per litre without compromising safety. |
| Torch | Torch with disposable batteries | Wind-up, solar or rechargeable torch with rechargeable batteries | Rechargeables must be kept charged. Keep a set of spares topped up. |
| Radio | Battery radio | Wind-up or solar FM radio | Wind-up radios work indefinitely but take effort. Check reception in your home. |
| Phone power | Disposable power bank | One good-quality power bank, kept charged; a small solar charger as backup | Solar charging is slow in a British winter. A charged bank is more reliable. |
| Warmth | Fleece blankets and synthetic sleeping bags | Wool blankets, natural fibre layers and existing bedding | Wool stays warm when damp and lasts decades, but costs more upfront. Use what you have first. |
| Handwashing | Wet wipes and hand sanitiser | A bowl of water with soap, and reusable cloths | When water is short, wipes and sanitiser save water. Keep some, and choose plastic-free wipes. |
| First aid | A ready-made kit in plastic packaging | Assemble from existing supplies and top up the gaps | Ready-made kits are convenient and complete. Assembling your own takes more care. |
| Light at night | Candles | A torch or wind-up lantern | The government is clear that torches are safer than candles. |
| Cooking | Disposable camping gas canisters | No-cook meals; a gas hob if you have one | Camping stoves and barbecues must never be used indoors. |
| Food | Survival buckets of freeze-dried meals | Everyday shelf-stable food, rotated through normal meals | Freeze-dried buckets are expensive, packaging-heavy and often unfamiliar. Food you already eat is easier to rotate. |
For warm layers, our Natural Fibre Wardrobe and Fibre Checker explain which materials stay warm and last. For food, read The Be Ready Campaign: A UK Guide to Stocking Your Home With Healthy, Local Food.
Water: Self-Reliance Without Taking Risks

Water is the most important item in any kit, and the one where cutting corners can make people ill. The government recommends three litres of drinking water per person per day for three days, plus extra for babies, pets, medical devices, cooking and washing.
The official guidance is that bottled water is the safest way to prepare for a water outage. If you do not have space for bottled water, boiling water or using purification tablets on alternative sources can make it safer to drink in an emergency. Most alternative sources will need filtering first, and tablets should always be used according to the label because strengths vary.
There is a genuine tension here for anyone trying to reduce plastic. Bottled water can contain microplastics, and our Microplastics in Food guide looks at the evidence. But in an emergency, safe water matters most. The practical compromise is to choose larger bottles, store them somewhere cool and dark, drink them before they expire, and replace them. That way your emergency water is part of your normal household use rather than plastic that sits untouched for years.
A rain butt is useful for flushing toilets and watering plants during a water outage, and it reduces demand on mains water in dry summers. The government is clear that rain butt water should not be drunk, because it can contain bacteria.
If your water goes off, check your water company’s website for alternative supply points. If you are on the Priority Services Register, your water company should arrange alternative supplies for you.
Power and Light: Small, Reliable, Repairable

Power cuts are the disruption most UK households are likely to experience. Most are short and local, but longer outages can happen, particularly after storms. Without electricity, gas boilers, heat pumps, electric ovens and home internet will not work, and mobile signal may fail if the local mast loses power.
- Light: a wind-up or rechargeable torch, kept somewhere you can find it in the dark.
- Information: a wind-up or battery FM radio, with the frequencies of local and national stations written on paper.
- Phone charging: a charged power bank. Top it up every few months and before forecast storms.
- Home batteries: if you already have solar panels with battery storage, the government notes that some systems can keep supplying power during a cut, but only if they are designed and set up to run independently of the grid. Check with your installer.
- Repair before replacing: a torch with a loose contact or a radio with a broken aerial can often be fixed. Our Repair or Replace tool can help you decide.
You do not need a generator for a three-day disruption. If you choose to own one, it must only be used outdoors, well away from windows and doors, because generators produce carbon monoxide.
Cooking Without Power, Safely
The Be Ready advice deliberately focuses on food that needs no cooking, because many homes cannot cook in a power cut. That is the safest default. A tin opener, a bowl and a spoon are all you need for three days of nourishing meals.
If you have a gas hob, it may still work in a power cut, although electric ignition may not. Light it with a match if the manufacturer allows it, and keep the room ventilated.
What you must never do is bring a barbecue, camping stove, patio heater or generator indoors, including into a garage, tent or porch. They can produce carbon monoxide, which you cannot see, smell or taste, and which can kill. A battery-powered carbon monoxide alarm is a sensible addition to any home with fuel-burning appliances.
The safest emergency meal is one that needs no flame at all.
Once power is back, retained-heat cooking is a useful low-energy skill. Bring a pot of beans, grains or stew to the boil, then wrap it in blankets or place it in an insulated box to finish cooking slowly in its own heat. It uses a fraction of the energy of simmering on a hob, and it is how many households cooked when fuel was scarce.
Self-Reliance Is a Skill Set, Not a Stockpile

Real self-reliance is not measured by how many tins are in the garage. It is measured by what you can do with what is available. Skills do not expire, take up no storage space and are useful every day.
- Cooking from scratch. Someone who can turn oats, beans, onions and a tin of tomatoes into a meal is far more resilient than someone with a cupboard full of ready meals.
- Growing some food. Even herbs, salad leaves or a few potatoes in a container teach you about seasons and soil. If you do not have space, an allotment or community garden can help.
- Preserving. Drying, fermenting, freezing and making jams and chutneys let you buy local produce when it is abundant and cheapest.
- First aid. The government recommends learning basic first aid. Organisations such as St John Ambulance offer free advice and courses, and some employers will pay for training.
- Mending. Fixing a torch, darning a jumper or patching a coat keeps things in use.
- Knowing your plants. Learning to identify common plants and herbs is a lifelong skill. Our guide to medicinal plants, herbs and trees is a starting point, but never eat or use a wild plant unless you are certain what it is, and speak to a professional before using herbs medicinally.
Skills do not expire, and they never need to be rotated.
Community Is the Real Supply Chain

The Be Ready campaign repeatedly returns to one idea: talk to the people around you. Swap numbers with neighbours. Find out who might need help. Agree who will check on whom if the power goes out. The government has a whole section on playing your part in your community, including volunteering.
This is the part of preparedness that individual prepping often misses. A household with a full cupboard and no neighbours is less resilient than a street where people know each other, share what they have and look out for those who are older, disabled or living alone.
Community food projects show what this can look like. We have documented a jiu-jitsu dojo that became a community garden and food bank, a community kitchen and garden in Cabarete and a plant-based community kitchen in Austin. In each case, food grown and shared locally became a source of support as well as nourishment.
Local farms are part of this too. Knowing where your nearest farm shop, veg box scheme or farmers’ market is gives you another route to food when the usual one is interrupted. Use the Be Ready Map: UK Farm Shops and Local Food Guides and our farmers’ market checklist to find and use them, and read Emergency Preparedness Through History for examples of what communities have done when supply routes failed.
Spotting Prepper Marketing and Greenwashing

Government campaigns about preparedness often trigger a wave of marketing. Some of it is helpful. Much of it is designed to make people anxious enough to spend. Before buying anything sold as essential for emergencies, ask:
- Is this on the official checklist? If not, why do I need it?
- Do I already own something that does the same job?
- Will I use this in normal life, or will it sit unused until it expires?
- Is the claim specific? Phrases such as eco-friendly, sustainable or survival-grade mean little without evidence.
- Is the shelf life realistic and useful? A 25-year meal bucket is not better than food you eat and replace every few months.
- Is fear doing the selling? Countdown timers, worst-case scenarios and limited stock warnings are sales tactics, not safety advice.
Our Greenwashing Checker and Swap Finder can help you test environmental claims and find longer-lasting alternatives.
If a product needs you to be frightened in order to sell it, you probably do not need it.
A Low-Waste Be Ready Kit in One Weekend
- Saturday morning: walk round the house with the official checklist and gather everything you already own into one box or shelf.
- Saturday afternoon: test torches, radios and power banks. Charge batteries. Fix what you can.
- Sunday morning: check food and water. Work out three days of meals from what you have, and list the gaps.
- Sunday afternoon: fill in the household emergency plan, write important numbers on paper, check eligibility for the Priority Services Register and message a neighbour.
- Over the next month: pick up missing items gradually during normal shopping, choosing reusable and long-lasting versions where they make sense.
- Every six months: rotate food and water, check batteries and update the plan.
Self-Reliance, Not Isolation
The best version of prepping looks nothing like the stereotype. It is not about retreating from the world with a stockpile. It is about being capable, connected and calm: able to look after your household for a few days, able to help others, and less dependent on any single shop, supply route or service.
That kind of resilience is built slowly, through everyday choices. Cooking from scratch. Buying from local growers. Keeping things in use. Knowing your neighbours. None of it requires fear, and all of it makes ordinary life better.
Prepare for three days. Build skills for a lifetime. Choose fewer things, and more people.
Sources and Further Reading
- UK government: Be Ready campaign announcement
- Be Ready: Be ready for emergencies and checklist
- Be Ready: Water supply interruptions
- Be Ready: Power cuts
- Be Ready: Play your part in your community
- Priority Services Register
- Food Standards Agency: Food safety in a power cut
- St John Ambulance: First aid advice