Refractometer
Revision as of 01:26, 19 August 2017 by Uncle Jesse (talk | contribs) (Recreating page from http://web.archive.org/web/20100706200856/http://wiki.homedistiller.org/Refractometer)
A refractometer is a device used for measuring specific gravity in a mash. In the following photo, a plastic cover is opened to reveal the blue area. A few drops of cooled wort are placed onto this blue area using the dropper. The plastic cover is then closed, allowing the brewer to look through the viewing glass at a scale with an accurate reading of specific gravity.