Low Intervention Winemaking in Türkiye: What It Means

The best winemaking in Türkiye is invisible. Wild yeast, no pumps, buried clay, no additions. The terroir speaks because nobody interrupted it.

Wild yeast. No fining. Gravity-fed production. Qvevri fermentation. Turkish producers at the forefront of natural and low-intervention winemaking are making some of the most honest, terroir-expressive wines in the world.

Category: education · 6 min read · Published 2026-06-28 · Altevin Blog

• Wild yeast fermentation used by Kastro Tireli, Arda Wines, 502 Vineyards, and Mesashuna
• Kastro Tireli's gravity-fed winery design means no mechanical pumps touch the wine at any stage
• Mesashuna adds no additions whatsoever — the most absolute interpretation of minimal intervention
• Arda Gala Red 2022: unfiltered, low sulfites, wild yeast — won Rodeo Uncorked! 2025 Class Champion
• 502 Vineyards uses approximately 20 PPM total sulfur — among the lowest in commercial production
• Low intervention in Türkiye is a return to tradition, not a trend imported from elsewhere

The spectrum of intervention

Low-intervention winemaking exists on a spectrum. At one end: highly technical winemaking using commercial yeasts, acids, enzymes, fining agents, filtration, and sulphur additions to produce consistent, shelf-stable wine at scale. At the other end: the Mesashuna method — wild yeast, buried qvevri, no additions of any kind, sealed for 4½ months, minimal racking.

Most producers in the Altevin portfolio sit at the low-intervention end — not because it is fashionable, but because it is the approach that most honestly expresses what their extraordinary indigenous grapes and unusual terroirs have to offer.

Common practices across the portfolio

Wild yeast fermentation: Used by Kastro Tireli (entire range), Arda Wines (entire range), 502 Vineyards (entire range), and Mesashuna (entire range). Native yeasts produce more complex fermentation profiles than commercial strains.

No filtration: Arda Gala Red 2022 (unfiltered), Kastro Tireli Hermos (unfiltered), 502 Vineyards entire range. Unfined and unfiltered wines retain more texture and complexity and age better.

Gravity-fed production: Kastro Tireli's entire winery is designed so wine flows downhill without pumps — no mechanical stress on delicate wine structure.

Minimal sulfur: Mesashuna adds no sulfur at any stage. Arda Gala Red uses low sulfites. 502 Vineyards adds approximately 20 PPM total.

Frequently Asked Questions

What does low intervention mean in winemaking?

Minimum or no additions to the wine: no commercial yeasts (wild fermentation instead), no fining agents (the wine clarifies naturally), no filtration (texture and complexity are preserved), minimal sulfur. The goal is for the wine to express the grape and terroir without winemaking intervention masking it.

Is low intervention winemaking the same as natural wine?

Natural wine is the extreme end of the low-intervention spectrum — with organic or biodynamic farming required in addition to minimal-addition winemaking. Most Altevin producers are natural wine producers in practice, even if not all use that label explicitly.

Does low intervention mean lower quality?

No — at this level of producer it means higher quality, because there is nowhere to hide behind technical corrections. The Arda Gala Red 2022 (wild yeast, unfiltered, low sulfites) won an international competition outright against technically produced competition.