Humidification Basics & Device Guides — brittleness-prevention

Organic materials constantly absorb and release moisture, making them highly sensitive to changes in humidity. When humidity swings too low, they become brittle, lose aroma, and warp; when it rises too high, they swell, grow mold, and degrade faster. This guide explains why humidity affects organic materials at the fiber level, how both dryness and excess moisture cause damage, and why stable RH control is essential for long‑term preservation.