ALCOHOL GUN
The Alcohol Gun (or Acidimeter Salut) is a handheld dairy testing instrument used for the rapid, selective determination of raw milk freshness and alcohol stability upon reception.
Preparation & Calibration
- Reagent check: Fill the Acidimeter Salut reservoir with typically 72% to 76% ethanol concentration mixed with alizarin indicator.
- Cleanliness: Ensure the integrated or accompanying stainless steel test tubes and drain holes are clean, dry, and free of residual soap or previous milk samples.
- Sample collection: Stir the raw milk container thoroughly to obtain a representative sample of the fresh milk right after delivery.
Physical Execution
- Load reagents: Remove the front cap or plug from the Acidimeter Salut reservoir and fill it with the solution, then secure the cap back in place.
- Measure milk: Draw or measure an exact equal volume of the milk sample (typically 2 mL) into the testing vial or tube.
- Combine: Dispense an equal volume (2 mL) of the solution from the pistol directly into the 2 mL milk sample.
- Mix and observe: Mix the combined fluids gently by swirling or inverting the tube, and inspect the mixture immediately for changes in color and texture.
Visual Interpretation
- Normal fresh milk: Displays a uniform brick-red coloration with no visible clots or coagulation.
- Low/Slightly acid milk: Displays a rosy or yellowish hue, often accompanied by fine flakes or clots.
- High acidity / Spoiled milk: Turns distinctly yellow with clear curdling or coagulation.
- Alkalinized or mastitic milk: Shifts to a violet or purple coloration.
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