Blending Wine With Pearson’s Square

Blending Wine With Pearson’s Square

Blending wine to adjust wine chemistry can be a little tricky. Luckily there’s a handy tool you can use, Pearson’s Square, for determining the proper proportions needed to create the right balance in your final wine. This tool can be used for blending a wine of high alcohol and one of low alcohol content to produce a wine with a more reasonable alcohol level. It doesn’t end with alcohol though, Pearson’s Square can be used to: blend wines of different acidity to create a more balanced wine blend wines of different degrees of sweetness calculate sugar additions to increase a finished wine’s alcohol content blend wine and brandy when fortifying a wine So how does this magical tool work? Let’s find out. Calculating Blend Ratios Pearson’s Square is actually a simple tool for calculating the ratios of two different wines that when mixed together result in a mixture that has the characteristics you desire. If we have two wines of different alcohol levels we can use the square to determine how much of each wine to mix together to come up with a blend that has an alcohol level of our choosing. Here’s what Pearson’s Square looks like: The variable “A” represents the alcohol content of one of your blending wines while “B” represents the alcohol content of the other.  “C” represents your target alcohol level. Keep in mind that you can use this for more than just blending wines of different alcohol levels. With this information you can calculate “D” which is the amount of wine “A” that you need. “E” represents the amount of wine “B” you need. When combined in these amounts you will have a wine with the desired alcohol level “C”. This has been sort of abstract so let’s try and example. Using the Pearson Square to Blend Wines Here’s an example of how this works. Let’s say we’ve got a 15% ABV wine and a 10% ABV wine. Our goal is to blend these two wines together to produce 6 gallons of wine that has an alcohol content of 13.5%. Here’s how it lays out in the Pearson Square. The vertical lines “||” are the symbol for absolute value in case your algebra is rusty. So even though B – C is a negative number take it as positive for the purposes of this calculation. You may have noticed that the units for D and E are labeled as “parts”. Mixing 3.5 parts of wine A with 1.5 parts of wine B will result in a final alcohol content of 13.5%. To get these quantities into units of measurement that are actually useful we can calculate the percentage of each as follows: Just to be sure we did this correctly we can add the volume of wines A and B together and we get a total of 6 gallons. Hooray! Please note that Pearson’s Square and the equations presented here are not specific to the English system of units. You may use liters, tons, tonnes, barrels, teaspoons, etc. You can also use this tool in a slightly different way. For example, if you...

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