How we choose products

This page explains how we decide what to recommend, plainly and without exaggeration, so you can judge how much weight to give our picks.

The short version

• Our recommendations are research-based. We compare manufacturer specifications, patterns in verified customer reviews, and guidance from official and established organisations.
• We do not test products hands-on. If that ever changes for a product, the review will say so clearly, and say what we tested.
• No expert reviewer is credited on this site. Guides appear under the house byline Merritt Lang. The site is run by Aaron Rockett. Neither claims to be a certified emergency-management, medical or safety professional. Our guides are general information, not professional advice.

1. Start with the need, not the product

Before looking at any product, we check what official guidance says people actually need (for example how much water to store, or what goes in a basic emergency kit). That frames what "good" looks like for each category.

2. Manufacturer specifications

We read the manufacturer's own specifications and documentation: capacity, run time, certifications, shelf life, weight, what's included, and warranty terms. Where claims seem unusually strong, we look for independent confirmation and say if we couldn't find it.

3. Verified customer reviews: looking for patterns

Star ratings alone can mislead, so we read reviews looking for patterns, not single opinions:

• we focus on verified-purchase reviews;
• we pay particular attention to negative and critical reviews (what fails, and how often the same complaint appears);
• we look for long-term reports (months or years of ownership), which matter a lot for gear you may store for a long time before you need it;
• we're wary of a sudden burst of short, glowing reviews, or reviews that are for a different product.

4. Authoritative sources we consult

We consult guidance from official and established organisations. Listing them here means we use their published advice as a reference. It does not mean they endorse, review or are connected with Keep Calm and Prep or any product we recommend.

UK

• UK Government: Be Ready (GOV.UK emergency preparedness campaign)
• Met Office: weather warnings and severe weather advice
• British Red Cross: emergency preparedness advice

US

• Ready.gov (FEMA): build a kit and make a plan
• FEMA: Federal Emergency Management Agency
• CDC: emergency preparedness and safe drinking water
• American Red Cross: be ready

Where official advice differs between the US and the UK, we say so and link to both.

5. US and UK availability

• We check whether each pick is sold on both Amazon.com and Amazon.co.uk. The same product can have a different listing, model number, plug or voltage in each country.
• Where a product is only available in one country, we say so and, where we can, suggest an equivalent for the other.
• Our links send UK visitors to Amazon.co.uk and everyone else to Amazon.com (details here). If a product isn't listed on your local store, the link opens an Amazon search instead.
• Electrical items: always check the plug type and voltage for your country before buying.

6. Keeping picks up to date

Products get discontinued, redesigned or overtaken. We revisit our guides periodically and when we learn about a change (for example a recall, a new model, or a reader report). Every guide shows the date it was published or last updated. We don't show prices because they change too often to keep accurate.

7. What we don't do

• We don't accept payment, free products or other incentives in exchange for coverage or rankings.
• We don't give star ratings or scores to products we haven't used, and we don't copy Amazon's ratings onto our pages.
• We don't invent test results, statistics or credentials.

Spotted a mistake?

If something is wrong, out of date, unsafe or unavailable in your country, please tell us at hello@keepcalmandprep.com or via our contact page. Include the page link and what needs fixing. We review every report and correct genuine errors, updating the page date when we do.