Steel, Concrete or Amphora? Modern Fermentation Explained
Stainless steel keeps it pure, oak adds flavor, concrete lets it breathe, amphora goes back to the ancients — each vessel builds a completely different wine.
The grape is the personality. The yeast is the engine. But the vessel — the container where the wine spends those critical first months — is the architecture that shapes how it grows.
For most of wine history, the choice was simple: oak or clay. Now winemakers choose between four materials that each do something completely different. Argentina's most innovative producers are leading a quiet shift away from heavy oak toward concrete and even amphora — letting altitude-driven fruit speak for itself.
This is the choice that defines whether a wine tastes like the place it came from, or the wood it slept in.
The five chapters
01Stainless Steel
Neutral, controlled — the modern standard.
Read Step 1 →Oak Barrels
The classic — covered in depth in our dedicated guide.
Read Step 2 →Concrete
Old technology making a comeback.
Read Step 3 →Amphora & Clay
8,000 years of winemaking history.
Read Step 4 →The Argentine Revolution
Why Mendoza is moving away from oak.
Read Step 5 →Taste the Vessel: Private Cellar & Amphora Tastings
Reading about micro-oxygenation is fascinating, but tasting a Malbec fermented in a 2,000-liter unlined concrete egg side-by-side with French barrique and ancient amphora is unforgettable. Experience Mendoza's architectural wonders with dedicated sommelier chauffeured tours.
Tasting at home? Compare how concrete vs. oak affects aromatics using sensory-matched Riedel Veritas Burgundy glasses and a Coravin Timeless system to sample without opening the bottle.
Quick answers
What's the difference between stainless steel and concrete for wine?
Stainless steel is completely inert — no flavor, no oxygen exchange. Concrete also adds no flavor, but allows tiny amounts of oxygen through the walls (similar to oak). Steel keeps wine pure and fresh. Concrete softens it gently without adding wood notes.
Why are concrete tanks becoming popular again?
Because winemakers want oak's softening effect without oak's flavor. Concrete gives natural microoxygenation through its porous walls, but adds zero flavor to the wine. This lets the grape and the place speak for themselves — which is exactly what modern Argentine producers want.
What is amphora wine?
Wine aged in clay vessels, often called qvevri (Georgian style) or amphorae (Roman style). The clay is neutral in flavor but allows microoxygenation. Many amphora producers also leave white wine on its skins, creating “orange wine” — amber-colored white with tannins.
Which is best — steel, oak, concrete or amphora?
None is “best” — each builds a different wine. Steel is best for fresh aromatic whites. Oak is best for structured reds meant to age. Concrete is best when you want gentle softening without wood flavor. Amphora is best for terroir-focused experiments. The world's best wineries often use all four for different cuvées.
Why are Argentine winemakers moving away from oak?
After 30 years of heavy oak, the country's best producers feel that Argentina's altitude and fruit are now expressive enough to stand on their own. They're using concrete, large foudres, and amphora to let the place speak — instead of letting the barrel dominate.