Enter the corrected lactometer reading (CLR) and FAT % to get the SNF % of milk — using Richmond's formula, the standard used by Indian dairies.
The constant varies by state and union — 0.44 is the most common in India, but 0.14, 0.36 and 0.72 are also used. Enter the value your dairy or union has officially adopted. CLR should already be corrected to the standard temperature (usually 27 °C).
SNF (solids-not-fat) is rarely measured directly. Instead, the lactometer gives you the CLR and the analyzer or Gerber test gives you the FAT %, and SNF is derived with Richmond's formula: CLR divided by 4, plus a quarter of the fat, plus a small constant.
SNF matters because milk price depends on it: most Indian dairies pay on both FAT and SNF, and low SNF (from added water or poor feed) directly cuts the farmer's rate. For the full explainer — what SNF, CLR and total solids mean and typical values for cow and buffalo milk — read What is SNF in milk?, then price the milk with the milk rate calculator.
In Dairy Giant, SNF never has to be worked out by hand: the connected milk analyzer reports FAT, SNF and CLR in real time, and the software applies your rate chart instantly — every collection tested, priced and receipted automatically.
See automatic quality testingDairy Giant reads FAT, SNF and CLR straight from your milk analyzer and applies the rate chart at every collection.