Inline Process Refractometers for Food & Beverage


Inline process refractometers are used in many food and beverage applications. Some examples are beer, wine, gelatin & gummy candies, soy milk & tofu, tomato purée, ketchup, brine, canned coffee, jams, jellies, and honey.

The  process refractometer is used to assist in controlling sweetness and dissolved solids. The sensor is mounted in the sanitary process piping, while the control electronics are remotely mounted and provide outputs and communications to larger supervisory control systems.

For more information about inline process refractometers used in food and beverage applications, contact Electron Machine Corporation by calling 352-669-3101 or visiting https://electronmachine.com.

°Brix Measurement with Inline Refractometers

Refractometers measure Brix in juice
Refractometers are used to measure Brix in various juices.
A wide variety of food and beverage products rely on sweetness as a standard of consistency and quality. The unit of measurement to determine the concentration of sugar in food and beverage is °Brix (degrees Brix). Commercial processors of juices, wine, beer, soft drinks, tomato products, dairy, maple syrup, honey, jams and jellies implement the use of some form of refractometry to determine °Brix in their products.

°Brix (symbol °Bx) is the percentage of sugar dissolved in the subject product. One degree Brix equals 1 gram of sucrose in 100 grams of solution. °Bx is a degree scale from 1-100. A solution that is 15°Bx is 15 percent sucrose by weight. Measuring °Bx is based on the index of refraction or the density of the process media at specific reference temperatures of 20°C.

inline industrial refractometers
Inline industrial refractometer with control electronics.
One type of instrument used to measure °Bx is called a refractometer. Smaller food and beverage producers use hand-held refractometers to determine °Brix in product batches. Large scale producers, with continuous processing or high volume batches, use highly accurate, rugged, inline industrial refractometers which are installed on the process piping and become part of their overall control scheme.

All refractometers use the refractive index (RI) of the food/beverage concentration as the measurement method to determine °Bx.  The refractive index (or index of refraction) of a material is a dimensionless number that describes how fast light propagates through the material, or in other words, how much the path of light is bent, or refracted, when entering a material.

Refractometers often require some type of correction or linearization based upon the substance they are measuring. To account for other undissolved solids, organic acids or ethanol in the process media, specialized curves must be used. Inline process refractometers include these custom curves in the microprocessor programming, and can be selected through the refractometers user interface for varying product runs.

For more information about the measurement and control of °Brix using inline refractometers, contact Electron Machine Corporation.

352-669-3101

Happy Holidays from All of Us at Electron Machine

From all of us at Electron Machine Corporation, we wish our customers, partners and vendors a safe and happy holiday season and a wonderful 2019!


MDS Black Liquor Solids Monitoring System Training by Electron Machine Corporation


Electron Machine Corporation offers free MDS training at our facility in Umatilla, Florida. The MDS Monitor Divert System is a BLRBAC compliant Black Liquor solids monitoring system designed specifically for Black Liquor recovery boilers. Classes cover theory, operation, maintenance, troubleshooting and correct usage of the isolation valve. Training is comprehensive, friendly, personalized and provides the hands-on know-how necessary to operate the MDS.

For more information contact Electron Machine Corporation at 352-669-3101 or visit https://electronmachine.com.

The Inline Refractometer's Role in Juice Concentration

Orange juice
Fruit juice concentrate provides producers easier transport of product and longer storage life. Fruit juice concentrate production starts with a dilute feed stock juice and processes it into a uniform and consistent concentrated form through the removal of water. Water is removed through an evaporative process that involves specialized equipment designed uniquely for the concentration process. Almost every commercially harvested fruit can be juiced and concentrated.

Fruit juice extraction is unique to the shape, size, and nature of the fruit, but once the juice is extracted it is purified and stored in primary holding tanks prior to being delivered to an evaporator. Upon entering the evaporator, the juice concentration varies depending on a number of natural factors. The goal of the concentration process is to remove this variability and output a uniform and consistent juice concentrate.  Throughout the fruit juice concentration process, solid components of the original juice remain and can be quantified as a percent of juice volume.

inline process refractometer
Inline process refractometer.
Refractometers are instruments that measure the refractive index, which very simply put, indicates how much a light beam is "bent" as the light passes through the fruit juice.  The light bending is proportional to the solids concentrate. Sugars are the major soluble solids in fruit juice, along with other soluble materials including organic and amino acids, soluble pectins, etc.

In larger scale juice production facilities, soluble solids concentration (SSC%, degrees Brix) are determined by using in-line process refractometers at strategic points in the process to measure solids concentration, as well as to evaluate equipment performance and product quality. Output signals from the refractometers serve as inputs to the command and control system for the evaporators, allowing feed rate to closely match evaporation rate and make most efficient use of the energy consuming equipment.

For more information about inline process refractometers role in fruit and vegetable juice production, contact Electron Machine Corporation by calling 352-669-3101 of visit their web site at https://electronmachine.com.

Electron Machine Named Small Manufacturer of the Year by MACF

MACF Small Manufacturer of the 2018
The Manufacturers Association of Central Florida (MACF) is a non-profit organization dedicated to building the manufacturing industry in Central Florida. They provide a venue and pathway for networking, education, sales opportunities and lobbying for Central Florida business. For 26 years the organization has elevated Florida manufacturing companies through educational training, workshops, grant opportunities, supply chain assistance, and working with local and state legislators.

MACF Small Manufacturer of the 2018Electron Machine Corporation was named the MACF 2018 Small Manufacturer of the Year. The award was presented at the 2018 MACF Annual President's Dinner & Awards of Excellence and received by Electron Machine President C.A. Vossberg.

The award is in recognition of Electron Machine's success as a Central Florida manufacturing company that consistently exhibits growth through outstanding quality, teamwork, leadership and a strong sense of community.