Refractometers are used in the beer and wine industry to monitor fermentation. It is used to know the sugar content in the must, allowing grape growers to know effectively how much alcohol the wine will have; being that the more mature the grape is, the more sugar it contains. It is also used in the analysis of liquid products and in the control of operations during the processing of foods such as milk, sauces, juices, fruits, honey, jams, in confectionery and in the manufacture and refining of sugar.
Another important use of the refractometer in the food industry is its use to measure the salt content in food and in all kinds of solutions; determining it quickly and accurately.
The quality and intensity of the sweet taste of food depend on the molecular structure, temperature and pH. The refractometer is used to measure the content of sugars in food, and thus allows a stable and continuous control of the quality of food products.