The cellar is carved into tuffeau, a soft, porous white limestone used to build most of the Loire Valley's major castles.
These caves were originally created as quarries; the stone removed from here helped construct the nearby Château de Chenonceau.
Tuffeau stone has a high moisture-retention capacity, creating a natural, stable humidity level ideal for long-term wine storage.
The temperature inside the cave remains consistently cool throughout the year regardless of external seasonal variations.
The location is part of a larger network of underground galleries that run beneath the town of Montrichard.
Many of the local sparkling wines (Crémant) are stored in these caves to undergo secondary fermentation in the bottle.
The site operates as a working cellar where wine is currently matured, rather than a reconstructed museum exhibit.
Troglo Degusto is a boutique wine cellar carved directly into the limestone tuffeau cliffs characteristic of the Loire Valley. The facility utilizes the natural thermal insulation of the cave to maintain optimal conditions for aging regional wines. Visitors explore an underground gallery that illustrates the historical extraction of stone for local chateaus. The venue specializes in the tasting of Touraine wines, including AOC Montlouis-sur-Loire and Crémant de Loire. It functions as both a site of geological interest and a professional wine cellar. The structure is situated along the banks of the Cher River, a region historically significant for troglodytic dwellings. Guests receive guided explanations regarding the traditional methods of cellar management and regional viticulture.
The dramatic, naturally illuminated entrance tunnel that frames the contrast between the sunlit exterior and the dark, vaulted stone interior.
Bring a light jacket even in summer, as the cave temperature is significantly cooler than the outside air.
Inquire about the history of the quarry extraction, as staff are often local historians.
Purchase local Crémant de Loire directly from the source, as it is often difficult to find these specific vintages in international retail.
Do not expect a high-tech museum experience; this is an authentic, rustic cellar environment, so dress accordingly.
Closed on Tuesdays and Wednesdays during the low season.
Avoid touching the walls as the limestone can be crumbly and damp; wear closed-toe shoes with good grip for potentially uneven stone floors.
