SONOMA CAST STONE
Concrete Wine Tank | 137 gal (US) 5 hL
SONOMA CAST STONE
(pre-order now) Our Smallest Egg…
The Quail Egg is the only egg-shaped concrete fermentation tank available in a compact 5-hectoliter format, specifically engineered for small-batch fermentation and aging. Its ovoid design naturally promotes fluid circulation without mechanical intervention, enhancing antioxidant protection during vinification. This shape also ensures uniform maceration by keeping the cap submerged throughout fermentation, resulting in a concentrated extraction of aromatic and polyphenolic compounds in both red and white wines.
Thanks to increased contact between the wine and its lees, the Quail Egg reduces the need for bâtonnage, streamlining manual operations and improving overall efficiency in the cellar. Ideal for winemakers seeking precision and full expression in limited volumes, the MiniEgg combines the structural benefits of concrete with the dynamic properties of ovoid fermentation—making it an essential tool for differentiation and high-quality production.
Only Sonoma Cast Stone concrete wine tanks are guaranteed against cracks and leaks for five years.
A unique style of engineering that makes Sonoma Cast Stone concrete tanks incredibly durable.
Get precise temperature control, hidden within the walls of your tanks and kept apart from your precious wine.
We’ve been putting beautiful things in beautiful places for 25 years. Get your choice of color and logo treatment to wow your guests.
Our huge production facility is packed with the right tools and talent to give you one perfect tank–or a hundred.
SONOMA CAST STONE
Use this interactive tool to help you visualize your tank in various colors,
then visit our complete (Color Palette) to choose from dozens of standard colors,
–or ask us about custom blends!












SONOMA CAST STONE
Use the form below to get in touch with us.
Sonoma Cast Stone
Ideal for small-batch and testing.
Why Choose ConcreteWhy Our Tanks Are Different…
Column Two