Small volume concrete tanks: precision, control and maximum expression of the terroir
At Sonoma by SAS, we believe in winemaking that respects the authenticity of the vineyard, the purity of the fruit and the identity of each plot. That is why, in addition to manufacturing large capacity tanks, we develop a range of small-volume concrete tanks designed for microvinifications, variety trials, single-vineyard wines and limited productions where every decision counts.
They are tanks designed to offer maximum control, gentle micro-oxygenation and a faithful interpretation of the terroir, with geometries that respond to different oenological needs. Each model brings a unique nuance to the wine, always maintaining the Sonoma by SAS philosophy: precision, stability and neutrality.
Mini EGG: natural movement and silky texture
The Mini EGG is our 5hl tank designed for those looking for a dynamic evolution, with lees always in suspension thanks to its ovoid geometry. This continuous movement prevents oxidation and reduces bâtonnage, achieving:
- Greater aromatic depth
- Silkier texture
- Unctuousness and volume in the mouth
- Natural oxidative stability
Ideal for white, rosé and red microvinifications with an elegant and fluid profile. The Mini EGG enhances the terroir without interference and offers wines with exceptional purity.
NuBarrel: the alternative to barrels without wood
The NuBarrel is designed to replicate the volumetric and exchange advantages of a barrel, but in 100% neutral concrete. It is ideal for those who want structure, roundness and complexity without wood notes:
- Gentle, continuous micro-oxygenation that rounds tannins
- Greater volume and balance without exogenous aromatic input
- Creamy texture and longer finish
- Excellent for aged whites, gastronomic rosés and precise reds
A perfect ally for modern styles that prioritize fruit purity and precision over wood marking
EGG : balance and natural convection
The EGG shares the same ovoid logic: constant internal convection and lees in soft suspension which offers somewhat higher volumes and a particularly homogeneous evolution, providing:
- Wider and creamier palate
- Crisp and persistent aromas
- Very fine integration of the lees with less intervention
- Clean, regular and stable fermentations
It is an excellent choice for loud whites, sparkling wines and fine-weave reds looking for precision and length.
Amphora: varietal purity and energy of wine
The Amphora concrete tank evokes classic shapes with a contemporary approach: natural internal flow, controlled gas exchange and total neutrality of the material. What does it bring to wine?
- More direct aromas, crisp fruit and freshness
- Polished tannins and balanced tension in the mouth
- Great soil readout (minerality, salinity, texture)
- Ideal for native varieties and single-vineyard wines looking for identity
Amphora is particularly appreciated for character whites, vibrant reds and winemaking with minimal intervention.
A collection created for wines with soul
Sonoma by SAS’s small-volume concrete tanks – Mini EGG, EGG, NuBarrel and Amphora – open the door to more experimental, precise and origin-friendly winemaking. Each model offers a distinctive oenological behaviour that allows the winemaker to explore new expressions of the vineyard, adjust protocols and produce batches where the level of detail is essential.
In short, they are tools for wines that tell a story: that of the terroir, the climate, the soil and that of conscious work in the winery.




