: The most common tool for measurement is a refractometer , which can be analog (held up to light) or digital. Hydrometers are also used to measure Brix based on the liquid's specific gravity.
While it began in the sugar industry, the Brix scale is now vital across several sectors: Brix: The Essential Knowledge - Mettler Toledo brix scale
The scale is primarily based on the principle of . When light passes through a liquid, it bends (refracts) at different angles depending on the density of dissolved solids within that liquid. : The most common tool for measurement is