Adjust pH Naturally and Precisely with Oenodia STARS® Technology

Traditional pH adjustment tools like tartaric acid and potassium carbonate often lack precision and can alter wine flavor, especially after fermentation. Oenodia’s STARS electrodialysis process is a smarter way to fine-tune pH, enhancing flavor, color, and SO₂ performance.

Why Adjust Acidity?

Stability: Enhance SO₂ Effectiveness

Sulfur dioxide is most effective within a specific pH range to protect wine from microbial contamination and oxidation. When pH>3.65, its effectiveness drops, requiring higher free SO₂ levels. Lowering pH helps maintain wine stability with less intervention.

Sensory

Adjust Flavor and Color

pH plays a key role in a wine’s sensory profile and visual appeal. A lower pH can sharpen flavor balance, reduce flabbiness, and enhance freshness. pH also influences color, especially in reds and rosés. pH adjustment is a natural way to shift color.

SHIFT pH ± 0.05 - 0.5
WITH PRECISION, WITHOUT ADDITIONS

Flexible Timing

It can be used in the juice phase, post-fermentation, and pre-bottling. 

All Wines

Suitable for whites, reds, rosés, and sparkling bases.

Rent or Purchase

With options to rent or purchase units, we can work with wineries of all sizes.