ABOUT SPARE THEORY
Practical self-reliance, tested.
Spare Theory helps households become more capable and resilient — with buying guides, interactive calculators and field tests built on evidence rather than hype. No invented numbers, no paid recommendations, no paranoia.
Tested, not typed
Where we can measure a claim, we do — and we publish the method, conditions and limitations behind every figure.
Evidence-led
We build on primary sources — manufacturer specs, standards bodies and public-health and energy guidance — not survival folklore.
Independently funded
Commissions never decide what we recommend. If a product isn't worth buying, we say so.
POLICIES & PEOPLE
Everything you might want to check about us.
Our standards, how the site is funded, the legal terms, and how to reach the team — all public, all in one place.
Editorial StandardsHow we research, test, rate and maintain everything we publish.Affiliate DisclosureHow the site earns commissions, and why it doesn't sway our advice.Safety DisclaimerOur content is education, not professional advice — read before acting.Corrections PolicySpot an error? Here's how we verify and fix it, and how fast.Privacy PolicyWhat we collect — including Google Analytics and cookies — and your rights.Terms of UseThe terms that govern your use of this site.ContactReach the team for corrections, questions or data requests.