{"id":42284,"date":"2025-03-03T08:43:56","date_gmt":"2025-03-03T12:43:56","guid":{"rendered":"https:\/\/www.thebeertimes.com\/what-is-a-refractometer-and-how-to-use-it-5-essential-things-you-need-to-know\/"},"modified":"2026-09-29T19:17:03","modified_gmt":"2026-09-29T23:17:03","slug":"what-is-a-refractometer-and-how-to-use-it-5-essential-things-you-need-to-know","status":"publish","type":"post","link":"https:\/\/www.thebeertimes.com\/en\/what-is-a-refractometer-and-how-to-use-it-5-essential-things-you-need-to-know\/","title":{"rendered":"What is a Refractometer and How to Use It? 5 Essential Things You Need to Know"},"content":{"rendered":"
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A refractometer is an optical instrument that measures the sucrose concentration of a solution based on the refractive index<\/a> produced by light in that solution.<\/p>\n

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What is a refractometer?<\/figcaption><\/figure>\n

If we prepared several containers with different solutions of sugar water and placed a pencil in each one, we would see that the pencil appears to bend more in those with a higher sugar concentration.<\/p>

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What the refractometer does is take a sample (in the case of beer, a sample of wort) and project the curve that light produces onto a reticle containing a scale, making it possible to determine the angle formed by the light.<\/p>\n

This value is expressed in degrees Brix<\/a> and tells us the percentage of sucrose present in the sample.<\/p>\n