In a snack plant, the weight that goes into the fryer is not the weight that comes out. Water evaporates, oil is absorbed, pieces break and some product is rejected. Many plants know their overall yield for the month, but not which product, line or shift loses the most. That is where the money is.
What frying loss really is
Frying loss is the difference between the weight going into the fryer and the weight coming out, as a share of the input. For potato chips, most of that difference is water: raw potato is mostly water, and a finished chip has very little. For besan-based namkeen, the dough loses less water but still absorbs oil. Because oil is absorbed while water is lost, the output weight alone hides two things: how much product you made and how much oil it took.
Measure at three points
- Input: the weight of dough, sliced potato or grits going into the fryer for the batch, taken from the scale.
- Output: the weight of fried product after draining, before seasoning.
- Packed: the weight of good product packed, plus broken pieces, rejects and floor sweepings, each weighed separately.
With these three numbers per batch, you can calculate frying loss, the loss between fryer and pack, and the overall yield from raw material to packed product.
Do not forget the oil
Record oil added to each fryer per shift, oil discarded, and the oil quality checks your team uses. Oil used per kilogram of fried product is one of the biggest cost drivers in a snack plant, and it moves with frying temperature, product, and how the oil is managed. When it is recorded per batch, the shifts and products that use the most oil stand out.
A worked example
Suppose a batch starts with 500 kg of prepared dough and gives 420 kg of fried bhujia, of which 395 kg is packed and 25 kg is broken or rejected. Frying loss is 80 kg (16%), the loss between fryer and pack is 25 kg (about 6% of fried output), and the overall yield from dough to pack is 79%. These numbers are only an illustration; yours will depend on your recipe, moisture and process. The point is that each number points to a different fix: frying conditions, handling after frying, or the dough itself.
Seasoning and coating
Seasoning is often the most expensive ingredient per kilogram in a snack, and dosage drifts easily. Recording the seasoning lot and quantity issued to each batch, against the weight of base product it was applied to, gives the actual dosage. If the recipe calls for a set percentage and the batches show more, the difference is money. Too little is a quality problem that customers notice. The same applies to masala coatings on roasted nuts and to the slurry used on some extruded snacks.
Give-away at packing
Snack pouches are usually filled slightly above the declared weight to stay legal. That give-away adds up quickly at high volumes. Sampling fill weights per line and shift shows whether the average is drifting above target. With scale readings captured automatically, the samples are recorded without extra work.
Turn the numbers into cost
When input, output, oil and packaging are recorded against the batch, cost per kilogram and cost per pouch come from actual consumption, not a standard sheet. Comparing actual with standard shows which products are losing margin and why. Our page on recipe and batch costing for food manufacturers explains how this works in Formezy.
Where to start
Pick your highest-volume product and record input, output and packed weight for every batch for a month. Add oil per shift and fill-weight samples. The patterns will show you where to look first. The snack ERP page shows where each of these is recorded in namkeen, chips and roasted nut flows.
WhatsApp