Temperature gets most of the attention with wine storage, but humidity is just as central to how Sub-Zero’s climate-control system is designed to work.
Why Humidity Matters for Wine
Corks depend on a stable humidity range to stay properly sealed — too dry, and a cork can shrink and let air in over time; the unit’s climate system is built specifically to prevent that.
Signs Something’s Off
Visible condensation inside the cabinet, or a noticeably dry feel to the air when you open the door, are both worth mentioning at your next service visit even if temperature seems normal.
Door Seals Affect Humidity Too
A worn wine-storage door seal doesn’t just let temperature escape — it lets the carefully maintained humidity level escape with it.
When to Call
If humidity feels consistently off and a visual seal check doesn’t explain it, visit our wine storage repair page for a full diagnostic.