How to protect your cards from humidity in Panama

Panama has a tropical climate with high humidity almost all year. For trading cards that means a constant risk: curled cards, stains and damaged packaging. The good news is that protecting them is cheap and simple.

The problem: humidity and heat

Cards are made of layers of paper and card. When they absorb moisture unevenly, they curl. Heat and direct sunlight make it worse and can fade the inks.

Level 1: sleeves for everything you care about

• Basic sleeves (penny sleeves): the minimum protection for any card you want to keep.
• Double sleeving: a tight inner sleeve plus an outer one seals better against dust and moisture.

Level 2: toploaders for the special ones

Rigid holders (toploaders) stop cards from bending. Use them for your best pulls, always with a soft sleeve inside.

Level 3: where to store them

• Side-loading binders: better than top-loading ones, because they protect more from dust.
• Closed boxes or containers: ideal for bulk cards.
• Add silica gel: a few packets in each box help control humidity. Replace them when they're saturated.

Level 4: the environment

• Keep your collection in a room with air conditioning or a dehumidifier.
• Away from windows and direct sunlight.
• Never in the car, on the balcony or next to the kitchen or bathroom.
• If you want to measure it, a cheap hygrometer shows the room's humidity.

Sealed product needs care too

Unopened packs and boxes also suffer from heat and humidity. Store them like your cards: somewhere cool, dry and dark.

Common mistakes

• Storing cards in sealed plastic bags without desiccant: they trap the moisture inside.
• Using rubber bands: they mark and bend cards.
• Displaying cards in the sun: the colours fade over time.

Just starting out? Read how to start collecting Pokémon TCG.