How to Reduce Milk Waste in a Cheese Factory
By Saleh Kamal Al-Saleh, dairy farm and cheese factory owner, founder of Lebnara · Last updated:
Milk waste rarely shows up as one big loss. It hides in small scattered points: a few litres at receiving, fat going out with the whey, a batch spoiled by temperature. The practical rule: do not try to fix everything. Measure first, then treat the biggest leak. Here are six places to start.
Point 1: Receiving
Compare the milk you paid for with what actually entered the tank. A repeated difference means a measurement or transport problem. Record every delivery by supplier, volume, fat and protein so you can compare suppliers.
Point 2: Cooling and age
Milk that waits too long at the wrong temperature gains acidity and becomes less stable in processing. Track milk age and temperature in each tank and use the oldest first.
Point 3: Fat standardisation
Each cheese needs a suitable protein-to-fat ratio. Milk with excess fat loses some of it to the whey; low-fat milk gives lower quality cheese. Calculate standardisation before pasteurising instead of guessing, starting with the free milk standardisation calculator.
Point 4: Whey losses
Test fat and protein in the whey regularly. High values mean the curd is breaking or being cut at the wrong time or temperature. Accurate cutting time and rennet dose directly affect yield.
Point 5: Cleaning and leaks
Milk trapped in pipes and tanks at cleaning time is real and repeats daily. Make draining the lines part of a fixed routine and check joints and taps for leaks.
Point 6: Storage and shelf life
Cheese that expires before it sells is also wasted milk. Dispatch first-expired-first-out (FEFO) and watch products nearing expiry before they become a loss.
How to measure yield: a hypothetical example
Illustrative only: a batch of 1,000 litres produced 140 kg of cheese, so yield is 14 kg per 100 litres. Another batch from the same milk gave only 130 kg. The difference is 10 kg a day, and at 4 JOD per kg that is about 40 JOD daily. What matters is spotting the gap and tracing its cause, not the number itself.
| Indicator | How to measure |
|---|---|
| Yield | kg of cheese / litres of milk x 100 |
| Receiving loss | Quantity paid for - quantity received |
| Whey fat | Periodic whey sample test |
| Waste rate | Rejected batches / total batches |
Frequently asked questions
- What is a normal cheese yield?
- It depends on the cheese type, fat and protein and the process, so measure your own yield for each product instead of relying on a general figure.
- Does Lebnara help with these measurements?
- Yes. It records receiving, tanks, batches and actual versus expected yield, and alerts you when yield deviates.
Measure your batch yield now
Enter your milk and the cheese weight to see the actual yield.