A coin can survive a hundred years in a drawer and then be ruined in a single afternoon by careless handling or storage. Protecting your collection is just as important as building it. Here’s how to store and care for your coins so they keep their condition — and their value.
The golden rule: never clean your coins
It’s tempting to make an old coin shiny, but cleaning is the single biggest mistake new collectors make. Abrasives, acids, ketchup, toothpaste and metal polish all leave hairline scratches and strip the natural surface, drastically lowering value. Collectors strongly prefer original, naturally-toned coins. When in doubt, do nothing.
Handle coins correctly
- Always hold a coin by its edge, between thumb and forefinger — never touch the faces.
- Skin oils and sweat are acidic and cause spotting over time.
- For valuable coins, wear soft cotton or nitrile gloves.
- Work over a soft cloth or padded surface so a dropped coin isn’t dented.
Choose the right holders
- Acid-free, PVC-free flips and holders — PVC slowly releases chemicals that leave a green, sticky film (“PVC damage”) on coins. Use only archival-safe, inert materials.
- 2×2 cardboard holders with mylar windows — inexpensive and great for everyday storage.
- Coin capsules — rigid plastic capsules for higher-value pieces.
- Albums and trays — convenient for viewing a series; ensure pages are PVC-free.
- Slabs — professionally graded coins come permanently sealed for maximum protection.
Control the environment
- Humidity is the enemy. Moisture causes toning, spotting and corrosion. Keep coins in a cool, dry place and add silica-gel desiccant packs to your storage box.
- Avoid temperature swings, which cause condensation.
- Keep away from PVC plastics, rubber bands, certain woods and household chemicals, all of which emit damaging vapours.
Store paper currency carefully too
Banknotes need acid-free currency sleeves, kept flat and away from light and humidity. Never laminate or tape a note — it destroys collector value.
Keep records and insure
Maintain an inventory with photos, purchase dates, grades and prices. This helps with insurance, future selling, and simply enjoying your collection. For valuable holdings, consider a bank locker or a quality home safe, and insurance cover.
Buy protection-ready
Many items on Coinbazaar arrive in protective holders, and our packaging is designed to keep coins safe in transit. Treat them well, and they’ll stay beautiful for the next generation of collectors.