The World’s Finest Concrete Wine Tanks Are Made in America
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Fermentation & Aging
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SONOMA CAST STONE
Square Tanks
Concrete Wine Tank | 555 gal or 791 gal (US)
SONOMA CAST STONE
Square Tanks
Two Sizes
More Space-Efficient Than Eggs
Square tanks maximize spatial efficiency, making them an excellent choice for wineries aiming to optimize layout—particularly in new or space-constrained facilities.
The geometry of square concrete tanks also promotes a favorable ratio of skin contact with the grape must, enhancing extraction of color and flavor compounds.
Concrete’s porous nature allows for gentle micro-oxidation, which softens tannins and elevates the wine’s fruit and terroir expression. Thanks to its high thermal mass, concrete naturally moderates fermentation temperatures.
10-Yr Guarantee
Only Sonoma Cast Stone concrete wine tanks are guaranteed against cracks and leaks for ten years.
Layered Concrete
A unique style of engineering that makes Sonoma Cast Stone concrete tanks incredibly durable.
Embedded Glycol
Get precise temperature control, hidden within the walls of your tanks and kept apart from your precious wine.
Showroom Quality
We’ve been putting beautiful things in beautiful places for 25 years. Get your choice of color and logo treatment to wow your guests.
50,000 Sq-Ft Factory
Our huge production facility is packed with the right tools and talent to give you one perfect tank–or a hundred.
Enhanced Cap Management
Easier Punch-Downs & Visual Monitoring: Open tops allow winemakers to manually or mechanically punch down the cap (the mass of skins, seeds, and stems that float to the top), ensuring better extraction of color, tannins, and flavor.
Increased Oxygen Exposure
Controlled exposure to oxygen during fermentation promotes healthy yeast activity and can soften tannins, contributing to a rounder, more approachable wine.
Small Lot Production
Ideal for artisanal or boutique winemaking, open-top fermenters are often used for small batches, experimental lots, or premium cuvées where hands-on control is essential.
Volatile Compound Release
The open environment allows undesirable volatile compounds (like sulfur dioxide or hydrogen sulfide) to dissipate more easily, resulting in purer aromas.
SONOMA CAST STONE
Color Ideas
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
To Inquire…
Use the form below to get in touch with us.
Sonoma Cast Stone
Square Tanks
555 or 800 gal
Open or closed top square tanks
make efficient use of your warehouse space.
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