The Glass Door Itself

The glass door is what makes a wine cooler worth looking at, and it is the part owners most often misjudge. On the island’s west shore, where the afternoon sun comes in off the lake, people reasonably want to know how much of it the glass keeps out.

What the glass protects against

The glass Sub-Zero fits to its wine storage is UV-resistant and bronze-tinted, meant to keep light off the wine. That deals with one enemy. UV resistance is about light, though, not warmth: sun falling on the glass and the cabinet around it still adds heat that the zone nearest the window has to remove, and Sub-Zero’s guides note that warmer surroundings make a compressor run longer. The note on afternoon sun and a west-shore wine unit deals with placement and blinds.

Cracks, chips and haze

A crack, or a chip at the edge, means the door needs replacing rather than taping, and a damaged pane can get worse each time the door is swung shut. Haze needs reading. Fog on the room side that wipes away is ordinary condensation. Fog on the cabinet side usually means damp air getting in, which makes it a question for the glass-door gasket. Haze that cannot be wiped from either face sits in the glass itself, and no cleaner will reach it.

Cleaning and replacing it

Sub-Zero’s guides say a standard glass cleaner is fine on its UV-resistant glass door. Its Designer undercounter wine storage is offered with either a standard or a high-altitude glass door, so a replacement is ordered by model and serial to match. It is fitted as a wine storage repair and priced after the diagnosis.