Clayver is a ceramic container designed specifically for winemaking, including fermentation, conservation and ageing.

Clayver is made of a special type of highly consistent compact sandstone, similar in many ways to natural granite. Unlike terracotta, it is very tough, which makes it easier to handle. The material is waterproof and therefore no special provisions are necessary to prevent the evaporation of the liquid, such as wax, enamel or resin coating. The material is naked. The intrinsically micro-porous structure of the ceramic material allows gas exchange with the exterior, but only in limited quantity and over a long time. Hence, the container is also suitable for long ageing.
It is also food-grade according to current regulations.
Unlike uncoated cement containers, cleaning Clayver is very simple. Hot water, steam or concentrated solutions of tartaric acid, citric acid, etc. may be used.


Clayver has the ideal shape of a sphere, with a short neck for the lid.
Other than its undeniable esthetic value, the spherical shape has several advantages: during maceration, it maintains the skins of the cap in contact with the must, favoring color extraction. During fermentation, convection remains obstructed and actually contributes to maintaining a homogeneous liquid and a constant mixing of the lees. For ageing, the thickness of the walls guarantees optimal high thermal inertia and a homogeneous three-dimensional exchange over the smallest possible surface area.

The top edge of Clayver is perfectly flat, guaranteeing an excellent interface with a simple rectified glass lid. The lid can be customized, silkscreened and UV-treated.

Registrations and certifications

Clayver is a registered trademark and patented (patent pending). The container is certified food-grade.