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Solid fat index

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Solid fat index (SFI) is a measure of the percentage of fat in crystalline (solid) phase to total fat (the remainder being in liquid phase) across a temperature gradient. The SFI of a fat is measured using a dilatometer that measures the expansion of a fat as it is heated; density measurements are taken at a series of standardized temperature check points. The resulting SFI/temperature curve is related to melting qualities and flavor. For example, butter has a sharp SFI curve, indicating that it melts quickly and that it releases flavor quickly. [1][2]

References

  1. ^ Physical and Chemical Characteristics Archived 2006-03-12 at the Wayback Machine. Wisdairy.com. Retrieved on 2011-11-03.
  2. ^ Butter : Glossary: S – Z. Webexhibits.org. Retrieved on 2011-11-03.
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