Accuvin Free SO2 Quick Test
SKU: EQP6015A
Average Rating:
Price: $31.70
Product Description
The Accuvin Free SO2 (Free Sulfur Dioxide) kit measures the level of free SO2. The sulfur dioxide present in must and wine is not all useful as a preservative. Some is bound to other chemical components, reducing its effectiveness as a preservative by 30 - 70%. Also, the degree of binding can change over time, affecting the ability of an adequate dose to continue providing its preservative properties. The effectiveness of sulfur dioxide as a preservative is also pH-dependent, with low pH wines requiring lower levels, and high pH wines requiring significantly greater concentrations to achieve the same effectiveness as in a typical wine with a pH of 3.3 - 3.4. The Accuvin Free SO2 Kit is divided into a Low Range (0 - 40 ppm) and a High Range (40 - 130 ppm).
The Free SO2 Kit includes 2 High Range Tests (red caps) and 8 Low Range Tests (green caps), 10 rehydration tubes (black caps), 10 samplers, and complete illustrated how-to-run instructions. The insert includes a Summary Interpretation explaining how to use the test results. A monitoring chart is included. The label with the color chart is on the front of the kit.
More Info:
Monitoring SO2 will ensure the right level of SO2 as a preservative without inhibiting malolactic fermentation while controlling browning and spoilage.
Summary Interpretations for most wines:
20-30 ppm: Level to control harmful microorganisms in fresh must for red wine pre-fermentation without inhibiting MLF.
30-50 ppm: Level to control browning in white musts.
20-40 ppm: Level desired for bottling.
SO2 as a preservative
The total amount of sulfur dioxide present in must and wine is not all useful as a preservative. Some is bound to other chemical components, reducing its effectiveness as a preservative by 30-70%. Also, the degree of binding can change over time, affecting the ability of an adequate dose to continue providing its preservative properties. The effectiveness of sulfur dioxide as a preservative is also pH dependent, with low pH wines requiring lower levels, and high pH wines requiring significantly greater concentrations to achieve the same effectiveness as in typical wines with a pH of 3.3-3.4.
Ship Info:
Shipping Weight: 4 oz 
