Refractometers are used to measure the sugar content of grape must before fermentation. During fermentation, sugars in grape must are converted into alcohol. Pre-fermentation Brix readings are a reliable indicator for the finished alcohol level. Although Brix is a popular sugar scales for winemakers worldwide, there are other scales for measuring grape must. 

• Grape growers
• Wine cooperatives (sorting grape must)
• Wineries (purchasing grape must)
• Buyers for grape must 

Technical Specifications 

 Key Applications of Atago Refractometers for Wine:

1. Measuring Brix (Sugar Content) in Grapes:

   • Brix is a scale that measures the sugar content of grape juice, which directly impacts the alcohol content of the wine. Atago refractometers provide quick and accurate Brix readings, allowing winemakers to determine the ideal time for harvesting.
   • By measuring the sugar content at various points throughout the grape-growing season, winemakers can decide the best time to harvest grapes to ensure the right balance of sugar, acidity, and flavor.
     
     

2. Fermentation Monitoring:

   • During fermentation, sugar is converted into alcohol by yeast. Atago refractometers are used to monitor the progress of fermentation by measuring changes in Brix or specific gravity.
   • Regular measurements ensure that fermentation is proceeding as expected, and winemakers can determine when to stop fermentation (to achieve desired alcohol levels) or make adjustments to the process.
     
     

3. Alcohol Content Estimation:

   • Atago refractometers with alcohol scales can be used to estimate the alcohol content of wine after fermentation.
   • After measuring the initial and final Brix levels, winemakers can estimate the alcohol content by using a simple calculation based on the sugar consumed by the yeast.
     
     

4. Wine Quality Control:

   • Consistent measurements of Brix, acidity, and pH levels help ensure that the final wine product meets the desired specifications.
   • Atago refractometers allow for non-destructive testing, so winemakers can assess the quality of the wine without needing to consume large amounts of the sample.
     
     

Benefits of Using Atago Refractometers in Wine Production:

1. Accuracy:

   • Atago refractometers are known for their precision, which is essential in winemaking, where small variations in sugar and alcohol levels can significantly affect the final product.
     
     

2. Non-Destructive Testing:

   • Atago refractometers allow for non-destructive testing, meaning that winemakers can assess the quality of the juice or wine without using up the sample or affecting its integrity.
     
     

3. Ease of Use:

   • These devices are designed to be user-friendly, providing fast and accurate readings with minimal training required. This is ideal for both on-site testing in vineyards and lab-based analysis.
     
     

4. Quick Results:

   • Winemakers need timely information, especially during harvest and fermentation. Atago refractometers deliver quick results, helping producers make real-time decisions on the harvest or fermentation process.
     
     

5. Portability:

   • Atago's handheld and portable refractometers enable winemakers to test samples directly in the vineyard, on production lines, or in the lab without needing to transport large quantities of samples.
     
     

6. Calibration:

   • Atago refractometers typically offer simple calibration processes, with many models requiring only distilled water for calibration. This ensures ease of use in dynamic environments like vineyards or wineries.