What Is the Seedor Safe?
Your seed phrase is the only thing standing between you and losing your Bitcoin forever. Paper burns at 233°F. Your phone gets hacked. Your notes app syncs to someone else’s cloud. The Seedor Safe solves all of it — permanently, in 316L marine-grade stainless steel.
The Seedor Safe Starter Set is a complete Bitcoin seed backup kit from Germany. You stamp your recovery words directly onto stainless steel discs using the included hammer and letter stamps. Load them in order into the sealed capsule. Seal it. Done. Your seed phrase is now fireproof, flood-proof, corrosion-proof, and completely offline.
CryptoCloaks is the official American reseller for the Seedor Safe. Ships next day from Colorado. Bitcoin accepted.
Jameson Lopp Approved ✓
Jameson Lopp — Bitcoin security researcher and creator of the most comprehensive seed storage stress test ever conducted — reviewed the Seedor Safe and specifically praised it for solving the critical flaw of letter-tile systems.
His conclusion: in a multi-part backup, one seed word with its corresponding numbering should be recorded per element. That’s exactly how the Seedor Safe works. One word per disc, numbered in sequence, locked inside a tamper-evident capsule.
When the most rigorous Bitcoin security researcher on the planet endorses your backup method, that’s not marketing copy. That’s the answer to “which one should I buy?”
Read Jameson Lopp’s full stress test review →
What’s Included in the Seedor Safe Starter Set
- 1x Seedor Safe capsule (316L stainless steel, sealed)
- Blank 316L stainless steel discs — enough for a full 12 or 24-word BIP39 seed
- Full set of letter stamps
- Hammer
- Tamper-evident numbered seal stickers
- Setup instructions
Everything you need is in the box. No additional tools, no additional purchases. Open it, stamp your seed, seal it, store it.
Compatible with: BIP39 12 and 24-word seeds, Shamir Backup (SLIP39), BIP32 root keys, WIF private keys, and Monero mnemonic seeds. Works with every hardware wallet — Coldcard, Trezor, Ledger, Jade, Foundation Passport, and all others.
How to Set Up Your Seedor Safe
Setup takes 20–30 minutes. Here’s the full process:
- Prepare your discs — take one blank disc for each word in your seed phrase
- Stamp each word — use the included letter stamps and hammer to stamp each seed word onto its disc. Work on a hard surface.
- Stamp the position number — stamp the word’s sequence number (1, 2, 3…) on each disc so you can reconstruct the order if they’re ever separated
- Load the capsule — insert discs in order into the stainless steel capsule
- Seal it — apply the tamper-evident numbered sticker. Now you’ll know immediately if anyone has accessed your backup.
- Store it — somewhere you’ll find it and somewhere fire or flood won’t. Safe deposit box, fireproof safe, buried container.
Done. Your Bitcoin seed is now backed up in a form that will outlast you, your house, and most catastrophic events.
Fire, Flood & Corrosion Resistance
316L stainless steel is marine-grade. It’s used in surgical instruments, boat hardware, and offshore oil platforms. Here’s what it survives:
| Threat | Seedor Safe | Paper | Plastic |
|---|---|---|---|
| House Fire (1,100°F / 593°C) | ✅ Survives | ❌ Burns at 233°F | ❌ Melts at 350°F |
| Flood / Water Immersion | ✅ Completely waterproof | ❌ Destroyed | ⚠️ May survive if sealed |
| Corrosion (salt, humidity) | ✅ 316L is corrosion-resistant | ❌ Degrades over years | ⚠️ Varies by material |
| UV / Light Exposure | ✅ Unaffected | ❌ Fades over years | ⚠️ Brittle over time |
| 50-Year Readability | ✅ Stamped steel is permanent | ❌ Paper degrades | ❌ Ink fades |
| Tamper Evidence | ✅ Numbered seal sticker | ❌ None | ❌ None |
The capsule design also solves the critical flaw of tile/letter systems: your seed words can’t scatter. If someone finds it, they see a sealed capsule with a numbered tamper sticker — not a pile of loose tiles they can photograph in 10 seconds.
Seedor Safe vs Other Bitcoin Seed Backups
There are three real categories of metal seed backup: stamping plates, letter tiles, and capsule systems. Here’s the honest comparison:
| Product | Type | Tamper Evidence | Scatter Risk | Price | Lopp Approved |
|---|---|---|---|---|---|
| Seedor Safe | Capsule (discs) | ✅ Yes | ✅ None — sealed | $109.99 | ✅ Yes |
| Blockmit Jig | Washer stamping | ❌ No | ⚠️ Medium | $4.99 | ⚠️ Partial |
| Cryptosteel Capsule | Capsule (tiles) | ❌ No | ⚠️ Medium (tiles) | $79.99 | ❌ No |
| Bilodeau Steel Plate | Stamping plate | ❌ No | ✅ None | $40-80 | ⚠️ Partial |
The Seedor Safe is the only capsule system with full tamper evidence and zero scatter risk at the same time. You pay more than a Blockmit Jig — but the Blockmit is a DIY washer system. The Seedor is a purpose-built, engineered backup solution from Germany with an expert endorsement.
If you want the best: Seedor Safe. If you want the cheapest steel backup: Blockmit Jig — $4.99. Both are in stock. We sell both.
Why Buy From CryptoCloaks?
- Official US reseller — we’re Seedor’s authorized American partner. You’re getting the real product, not a knockoff.
- Ships next day from Colorado — no waiting 3 weeks for a package from Germany.
- Bitcoin accepted — we mean it. Pay in sats. Keep it sovereign.
- Real people, real support — have a question? We answer it. We run printers, not a call center.
- 5-star track record — thousands of orders shipped, hundreds of reviews across all our products.
FAQ
Q: Do I need any other tools besides what’s in the box?
A: No. The kit includes the hammer, letter stamps, discs, capsule, and stickers. You need a hard surface to stamp on (concrete floor, stone countertop, anvil). That’s it.
Q: How hard is it to stamp the letters?
A: One firm strike per letter. It takes about 20-30 minutes for a full 24-word seed. No special skill required. If you can swing a hammer, you can do this.
Q: What if I make a mistake stamping?
A: Discs are not reversible — stamped impressions are permanent. Take your time, work letter by letter, and double-check each word before stamping. The kit includes extra blank discs for mistakes.
Q: Can I use this for Shamir Secret Sharing (SLIP39)?
A: Yes. The Seedor Safe supports SLIP39 multi-part backup, BIP32 root keys, WIF private keys, and Monero seeds in addition to standard BIP39.
Q: Is it obvious what this is if someone finds it?
A: It looks like a sealed metal capsule. It’s not labeled. A tamper-evident sticker shows if it’s been opened. Nobody who finds it will know what’s inside without opening it — and they’ll know you’ll know if they did.
Q: How does this compare to the Blockmit Jig you also sell?
A: Totally different tier. The Blockmit Jig ($4.99) is a DIY stamping tool for washers — budget-friendly, effective, zero tamper evidence. The Seedor Safe is an engineered, purpose-built capsule system with Jameson Lopp’s endorsement. Both work. The Seedor is better. The Blockmit is cheaper.
Q: Do you accept Bitcoin?
A: Always. We’re bitcoin-native. Pay in sats, keep it sovereign.
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