SlabeonGuide
Storing a Six-Figure Collection: Sleeves, Cases, Humidity
A practical playbook for keeping slabs and raw cards in mint condition.
By Slabeon Desk·Apr 03, 2026·5 min read
Climate is the single largest variable in long-term card storage. Aim for stable temperature in the 60–70°F band and relative humidity between 40% and 50%.
For slabs, a sealed inner case inside a fireproof outer safe is the practical baseline once the collection crosses six figures.
