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January 2018 WINES&VINES 89 WINERY & VINEYARD EQUIPMENT COMPARING RESULTS FROM LAB INSTRUMENTS Malic Acid g/L Sample 1 Sample 2 Sample 3 CDR WineLab < 0.05 < 0.05 < 0.05 Megazyme 0.041 0.036 0.035 ETS Laboratories <0.05 Copper mg/L Sample 1 Sample 2 Sample 3 CDR WineLab 0.21 0.21 0.23 ETS Laboratories 0.2 pH Sample 1 Sample 2 Sample 3 CDR WineLab 3.43 3.42 3.42 Hanna Instruments 3.43 3.43 3.42 ETS Laboratories 3.55 FSO 2 mg/L Sample 1 Sample 2 Sample 3 CDR WineLab 23 25 24 Megazyme 21 22 22 Hanna Instruments 17 19 19 ETS Laboratories 18 TSO 2 Sample 1 Sample 2 Sample 3 CDR WineLab 110 107 108 Megazyme 103 106 106 Hanna Instruments 103 99 102 ETS Laboratories 97 Pioneers in Polyethylene for Wine 25 Years of Experience Thousands of Tanks in Use 208-549-1861 • www.pascopoly.com Tanks 225 to 4500 Gallons QUALITY WINE ALWAYS TOP PRIORITY KiLR-CHiLR ™ Temp Control managed white wine fermentation, storage, and stabilization patented St. Regulus Automatic Fermentor patented managed red wine fermentation, self-pressing We used commercially available lab equipment to conduct some of the most common winery lab tests, then sent the same wine samples away to ETS Labo- ratories for professional analysis. The results of each test are presented here, along with a baseline figure, as provided by ETS Laboratories. nin, yeast, etc.) The measurement is taken 90º from the starting point by a photodetector. The amount of light scatter due to particles in a liquid or gas is mea- sured in nephelometric turbidity units (NTU). The Hanna turbidity meter comes in a case with many com- ponents for measuring the turbid- ity in liquids. The most common use in a winery is to check for heat stability to provide an accurate measure of protein haze in a wine subjected to increased tempera- tures. It can also be used for mea- suring the turbidity in liquids from settling ponds, soil samples and floor drain water clarity. The meter comes with NTU calibration standards in a stabi- lized solution that range in incre- ments of four from less than 0.1 to 500. After the meter is calibrated, a sample is placed in the meter and its NTU measurement can be read. Hanna Refractometer Simple, easy and cost effective A refractometer measures the degree of refraction of the light through a solution. The degree of refraction combines the effects of all solutes of that particular solu- tion. In grape juice, the majority of the compounds contributing to this measurement are the pri- mary sugars of the fruit, and any errors introduced from other compounds are insignificant. An automatic temperature-compen- sation algorithm corrects for the