Brix refractometer chart

If you are using a refractometeryou will most likely need to convert Brix to SG Specific Gravity at some point. I have a couple of handy calculators including alcohol correction along with a handy Brix To SG conversion table you can download as a PDF for future reference. Keep Reading for important tips and instructions. I also commonly use my Brix Refractometer for quick gravity readings before the boil, when lautering, etc.

If you want to do the math yourself, here is the formula used by this calculator to convert Brix To SG:. The presence of alcohol will skew the measurement of your refractometer. If you do not correct for this your measurement will be inaccurate. You can read more about the differences between refractometers, hydrometers, and the way they are used in this article.

This calculator can be used to get an approximate specific gravity reading of your wort AFTER fermentation has begun or completed. This is required because any alcohol present in the wort or beer will alter the degree to which light is bent while passing through the refractometer, altering the reading.

So to help them out, I added another calculator. Therefore, we have to go through some calculations to arrive at the measurement we homebrewers use most often, which is SG Specific Gravity.

Brix values can easily be converted to Specific Gravity for many common homebrewing calculations.

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Beware, as the relationship between brix and SG is not exactly linear! Check out these articles on choosing the best stainless fermenter and switching to electric brewing! I hope you found these calculators and resources useful! Table of Contents. If you are a homebrewer using a refractometer, you'll probably need to convert Brix to SG at some point. Mark Buster. Publisher Name. It's my duty to inform you that I use cookies on this site to ensure the best possible user experience. Using this site means you are cool with this!Each brand and blend of coolant was formulated to work within a specific concentration range.

If used outside that range, problems will occur, and usually hard and fast! If using the coolant at too low of a concentration, not only does it not have enough of its constituent components required for maintaining the mixture and its ecology, but tooling will break prematurely or cause bad finishes. The easiest method to check for concentration is use of a refractometer. It does need to be calibrated before its initial use by using distilled water to zero the scale. If your coolant does not have a one-to-one correspondence to the brix scale, then make a note of the horizon line determined in step 3 above Multiply the reading from the refractometer by this number to get the concentration.

brix refractometer chart

If you have new clean coolant mix, then the line should be almost as sharp as if you were measuring pure distilled water to calibrate the refractometer to zero. As the coolant ages, as more oil is beaten into it, then the line becomes less distinct. If you let your coolant go long enough, you will not be able to see any line at all, as there will be only one big gray area in the field of view. Once the line becomes a little blurry, it may be time to think about changing your sump.

To do this, follow the example below:. A neutral solution has a pH of 7. Coolant is formulated to work within a certain pH range, and this is usually a range of pH. Outside of this range, the coolant does not function as it should. Loss of pH control is the 1 reason why coolant stabilizers within the blend fail. The product literature or the MSDS for your coolant blend should have the pH range information for your reference.

When the pH of the solution falls below or raises above the working range, it indicates a more serious problem and should be dealt with as soon as possible. Keeping your coolant at the high end of the range is the best practice, as it will help to inhibit rust and corrosion, and reject tramp oils.

Do not increase above 10pH since this alkalinity can cause adverse health reactions. A low pH indicates that the concentration is too low or there is bacterial contamination present. Both problems should be dealt with in a timely manner while the coolant still can recover. If left unattended, bacterial rafts slime will form and inhibit oil removal and possibly clog your flood lines.

Your machine and parts may rust, and operators may develope dermatitus reactions. In order to know the pH of the coolant solution, it must be measured at least 3X per week.

Many people use litmus paper strips since they are easy to carry and very simple to use. By the time your coolant falls a full pH, there is little that can be done to get the coolant back to its effective operating level. With this, pH drops can be caught in time for corrective actions to be taken.We ask for your patience during these unusual times. Check out our Refractometer Calculatorwhich will allow you to convert Brix to gravity before and during fermentation.

A refractometer instantly reads gravity, in Brix, of unfermented wort or fruit juice by measuring the degree that light passing through the sample is bent. Unlike a hydrometer, only a few drops are required for a sample.

To use, apply drops to the prism face, close cover, and look through the eyepiece while aiming your refractometer at a light source. Additional information No additional information. The readings match what I was getting from my hydrometer, so I can trust the accuracy. It's a lot less wasteful since you only need a couple drops to get a reading.

The storage case helps keep it safe. Good product all around. Great homebrew tool! It's an extremely easy and accurate tool. One of the best benefits is that you only need a very small wort sample size to test! I used a small sanitized spoon to draw a sample not the supplied eye dropper. It's a must have for serious homebrewers! All Rights Reserved. Shopping Cart Shopping Cart View cart. Beer Starter Kits.

Recipe Kits. Hard Seltzer Recipe Kits. Limited Release Wine Kits. Product details A Brix Refractometer that includes a specific gravity scale. You won't have to do conversions between Brix and gravity when measuring the Original Gravity of musts or wort.

Measuring final gravity accurately will still take some calculations, as the presence of alcohol does affect the reading. See our article on How to Use a Refractometer for more information. Best of all, it only requires a few drops of liquid for an accurate reading. No need to lose a whole hydrometer test jar of beer or wine in the process. Our refractometer comes complete with a screwdriver for calibration, a microfiber cloth for cleaning the prism surface, a pipette for sample collection, and detailed usage instructions.

The Specific Gravity scale will provide a quick reading of your Original Gravity.

Coolant Refractometer

It is also a great tool for All-Grain Brewing. Easily sample your mash runoff so you know exactly when to stop sparging typically Brix.Refractometers are handheld, lightweight, portable instruments used to determine the concentration of water soluble fluids such as machine tool coolants, heat treating fluids, hydraulic fluids, plating baths, detergents, antifreeze, battery acid, etc.

The BRIX scale was actually developed for working with sugar related liquids fruit juices, soft drinks, winebut it is also commonly used for controlling the concentration of various industrial fluids cutting coolants, glycol solutions, and flux rinsing compounds.

Refractometers are very easy to use, even the non-digital, analog refractometers. Just place a few drops of fluid on the prism and hold the unit up to a light source. Look into the eyepiece and read the scale. To calibrate, just make sure the prism is clean and place a few drops of tap water on the prism. The separation line should be on zero.

brix refractometer chart

If not, turn the adjustment screw until it is. Remember, refractometers read on a Brix scale rather than actual percent. To get the actual percent, you must multiply the refractometer reading by your coolant's refractive index on product data sheet. However, many semi-synthetics, synthetics, grinding fluids, and some soluble oils can have a refractive index from 1. So a refractometer reading of 5 multiplied by an index of 1. This is most critical with solutions designed to be run at lower concentrations which have high indexes.

Another often ignored but very important factor is the difference between "working" concentration and "make-up" concentration. The fluid in your tank is the working solution and should be at the recommended concentration.

But when adding make-up fluid to the tank, you must allow for evaporation of the water over time from the working solution. But there are many variables which affect this relationship, and every machine in the shop will be different.

So the best course of action is to monitor the fluid in the tank with a refractometer and adjust the make up fluid leaner or richer to maintain proper working concentration in the tank. Maintaining the proper concentration of your cutting and grinding fluids can save you money! Second, by eliminating "lean" solutions, you'll extend tool life, limit biological growth, and reduce machine and parts corrosion problems.

The new Palm Abbe is a fourth-generation digital handheld refractometer that puts laboratory precision in the palm of your hand. Not just laboratory precision, but laboratory precision for the price of a traditional analog refractometer.

It is exactly the kind of bold, cutting-edge technology you would expect from MISCO, the company that pioneered the digital handheld refractometer. The Palm Abbe refractometer is fast, convenient, and easy to use.

Simply place a drop or two of fluid in the well and press a button on the key-pad. The custom-designed microprocessor delivers a nearly instantaneous readout in refractive index, degrees Brix, or any one of a thousand different units of measure, allowing you to read directly in the units you desire.The HI Sucrose, digital refractometer is rugged, portable and water resistant for measurements in the lab or field.

This optical instrument employs the measurement of the refractive index to determine parameters pertinent for concentration analysis. The actual measurement of refractive index is simple and quick and provides the operator a standard for content analysis. Samples are measured after a simple user calibration with deionized or distilled water.

This digital refractometer eliminates the uncertainty associated with mechanical refractometers and are easily portable for measurements in the field. The HI instrument utilizes internationally recognized references for unit conversion and temperature compensation and employ methodology recommended in the ICUMSA Methods Book internationally recognized body for sugar analysis. The Hanna HI Propylene Glycol Digital Refractometers are rugged, portable, water resistant devices that utilize the measurement of refractive index to determine the percent volume and freezing point of propylene glycol based solutions.

These digital refractometers eliminate the uncertainty associated with mechanical refractometers. HI samples are measured after a simple user calibration with distilled or deionized water. These meters use internationally recognized references for unit conversion and temperature compensation for glycol solutions e.

FREE Shipping to lower 48 states! We will not ship drums or totes until the address has been verified as a commercial business address. If you require delivery to a residential address or farmplease call One degree Brix is 1 gram of sucrose in grams of solution and represents the strength of the solution as percentage by mass. In the early s, Karl Balling, followed by Adolf Brixand finally the Normal-Commissions under Fritz Plato, prepared pure sucrose solutions of known strength, measured their specific gravities and prepared tables of percent sucrose by mass vs.

Balling measured specific gravity to 3 decimal places, Brix to 5, and the Normal-Eichungs Kommission to 6 with the goal of the Commission being to correct errors in the 5th and 6th decimal place in the Brix table. It is important to point out that neither wort nor must is a solution of pure sucrose in pure water. Many other compounds are dissolved as well but these are either sugars, which behave very similarly to sucrose with respect to specific gravity as a function of concentration, or compounds which are present in small amounts minerals, hop acids in wort, tanninsacids in must.

As specific gravity was the basis for the Balling, Brix and Plato tables, dissolved sugar content was originally estimated by measurement of specific gravity using a hydrometer or pycnometer.

In modern times, hydrometers are still widely used, but where greater accuracy is required, an electronic oscillating U-tube meter may be employed. Whichever means are used, the analyst enters the tables with specific gravity and takes out using interpolation if necessary the sugar content in percent by mass.

The opposite is true with the ASBC polynomial. Also note that the tables in use today are not those published by Brix or Plato. Dissolution of sucrose and other sugars in water changes not only its specific gravity but its optical properties, in particular its refractive index and the extent to which it rotates the plane of linearly polarized light.

The refractive index, n Dfor sucrose solutions of various percentage by mass has been measured and tables of n D vs. Calibration is usually based on the ICUMSA tables, [5] but the user of an electronic refractometer should verify this. Sugars also have known infrared absorption spectra and this has made it possible to develop instruments for measuring sugar concentration using mid infrared MIRnon dispersive infared NDIR and fourier transform infrared FT-IR techniques.

Refractometer Calculator

In the former case, in-line instruments are available which allow constant monitoring of sugar content in sugar refineries, beverage plants, wineries, etc. More accurate values are available from:. The Plato scale can be approximated by the Lincoln Equation:. Disagreements of this order of magnitude can be expected as the NBS and the ASBC used slightly different values for the density of air and pure water in their calculations for converting to apparent specific gravity.

It should be clear from these comments that Plato and Brix are, for all but the most exacting applications, the same. Note: all polynomials in this article are in a format that can be pasted directly into a spreadsheet.

Temperature is very important as refractive index changes dramatically with temperature. Many refractometers have built in "Automatic Temperature Compensation" ATC which is based on knowledge of the way the refractive index of sucrose changes. Beer, conversely, exhibits a change with temperature about three times this much.

Temp slope information. Brix is used in the food industry for measuring the approximate amount of sugars in fruitsvegetablesjuices, winesoft drinks and in the starch and sugar manufacturing industry.

For fruit juices, 1.


This usually correlates well with perceived sweetness. Modern optical Brix meters are divided into two categories. In the first are the Abbe-based instruments in which a drop of the sample solution is placed on a prism; the result is observed through an eyepiece.

brix refractometer chart

The critical angle the angle beyond which light is totally reflected back into the sample is a function of the refractive index and the operator detects this critical angle by noting where a dark-bright boundary falls on an engraved scale.

The scale can be calibrated in Brix or refractive index. These instruments are available in bench and handheld versions. Digital refractometers also find the critical angle, but the light path is entirely internal to the prism. A drop of sample is placed on its surface, so the critical light beam never penetrates the sample. This makes it easier to read turbid samples. These meters are also available in bench top laboratory and portable pocket versions.

This ability to easily measure Brix in the field makes it possible to determine ideal harvesting times of fruit and vegetables so that products arrive at the consumers in a perfect state or are ideal for subsequent processing steps such as vinification.Brix is a scale based on the amount that light bends when it passes through a liquid. If one were to place one's hand in a pond and measure the amount it appeared to bend, and then place it in the ocean, it would appear to bend a different amount.

That differential light bending is the best tool currently available to consumers to determine the value of crops that are purchased or produced. The brix chart is the scale that anyone can use to determine poor, average, good or excellent in a foodstuff. One of the benefits of joining Bionutrient Food Association as a member is the option to purchase a "brix kit" at a significantly discounted cost available to members only. The brix kit comes with a brix chart, refractometer and brix press that can be used on all fruits and vegetables to enable rapid quality testing.

How does Brix relate to quality? Centuries of wine making and work with other fruits and vegetables always show direct relations between high Brix and high quality, expressed most simply and directly as superior taste. The process is somewhat altered for the gardener or farmer in that they test the leaf of the growing plant much earlier and are therefore afforded the opportunity to correct soil deficiencies before the crop matures.

The gardener or farmer also benefits in that they soon learn that any crop with 12 or better leaf Brix will not be bothered by insect pests. Remember that sugar is only one of the components of brix. Also remember that many other substances can falsely indicate "brix" readings: rubbing alcohol, whiskey, vinegar, or wine although those readings are valid in their own right.

Interestingly, cooking oil, molasses, syrup, and other thick liquids require a refractometer calibrated to read brix. Honey is checked with a refractometer calibrated to measure the water in it instead of solids in water. We have all seen the optical effect of a pencil sticking out of water.

The straight pencil appears to be bent where it enters the water. This is because water has a different density than air, and so light travels at a different speed in water than in air. Thus, the pencil seems bent.

Brix/Specific Gravity Refractometer w/ATC

Fishermen must account for this optical displacement effect when they look into water for fish. A fish will appear to be in one location, but its true location may be a few inches away because light bends as it passes from water to air.

This difference between apparent and actual location is caused by this light-bending effect of the different densities of air and water.