Coffee refractometer method and apparatus

  • US 7,952,697 B2
  • Filed: 10/08/2008
  • Issued: 05/31/2011
  • Est. Priority Date: 10/08/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method of determining the total dissolved solids (TDS) in brewed coffee, comprising:

  • providing a brewed coffee sample to a coffee refractometer;

    determining, by the coffee refractometer, the index of refraction (ns) of the brewed coffee sample;

    determining, by the coffee refractometer, the temperature of the brewed coffee sample to provide temperature compensation to the coffee refractometer; and

    accessing, by a processor in the refractometer, a memory store in the refractometer, the memory store including a TDS formula that expresses the TDS of brewed coffee as a function of the index of refraction (ns) of brewed coffee and the temperature of brewed coffee, to determine the resultant TDS of the brewed coffee sample.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×