Humidification Basics & Device Guides — Porous Containers

A comparison of the most common storage containers—plastic, glass, metal, cardboard, graded slabs, humidors, and tea crocks—and how each one affects humidity stability when used with RH Shield devices.

A practical troubleshooting guide covering common humidity issues—too dry, too wet, fluctuating humidity, and porous containers—and how to correct them using RH Shield’s 2‑way moisture‑regulating devices.