The HI83742-27 reagents are a high-quality, pre-measured solution designed for fast and accurate colorimetric analysis. This reagent allows for a direct reading of the sample, providing valuable data on wine color density. The kit is engineered for samples with an expected color density range of 0.00 to 15.00.
Modern winemakers rely on analytical techniques to achieve their desired wine color. The decisions made throughout the winemaking process—from grape maturation and processing to aging and blending—all significantly influence the final color. To ensure accurate measurement, wine color is always read after removing any suspended matter. Wine's color is a complex blend of red and yellow components, though hints of blue or green may also be present. The wine's yellow color comes from tannins and other phenolic compounds, while the red color is caused by free anthocyanins and polymerized phenolic compounds. Because these red pigments are highly sensitive to pH and can be intensely dark, dilution is necessary for accurate measurements. Hanna recommends using a specific wine solvent to minimize errors and maintain the sample’s original pH. In particular, Wine Solvent 3 is a stabilized, ready-to-use solution with a fixed pH of 3.2, which is essential for comparing different types of dark-colored wines, especially those used for blending.
