EDINA, Minn. — Lund Food Holdings ensures the quality of its fruit by using an instrument called a refractometer to learn the exact sugar content. The refractometer can detect the sugar content, or Brix, in seconds. The user places a few drops of juice from a piece of fruit on the glass of the instrument. The cover is then closed and held up to the light. As Lund officials look through the scope, they see a scale and a corresponding line indicating the percentage of sugar in the juice. ...
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