Humidity, sulfur, temperature, and handling matter. Keep coins stable and clean.
Environment basics
- Stable humidity & temperature: avoid attics, basements, or bathrooms.
- Low sulfur & pollutants: keep away from paper with acids, paints, and cleaners.
- Dark storage: light can accelerate toning on some surfaces.
Materials & tools
- Capsules or PVC-free holders: avoid PVC flips that can leave residue.
- Silica gel / anti-tarnish: refresh or replace periodically.
- Gloves & microfiber: minimize direct contact and dust.
Practical setup
- Capsule your display coins; use trays/boxes for organization.
- Label sets (year, mint, variety) to reduce handling time.
- Keep a simple log of capsule sizes per coin to reuse later.
Next step
See Holders & protection or go By coin to pick sizes.