Commercial Production Guide
Production Losses: Water vs Waste
Weight disappears in two very different ways during production. Water loss is the process working as designed, the whole reason freeze drying exists. Product waste is product that never reaches a package: trim, residue, breakage and rejects. This guide separates the two and plans for both.
Category: Production Planning
Water Loss vs Product Waste
The two losses are different
Water Loss is expected and is the point of the process: the weight that leaves as vapor is part of the yield math. Product Waste is what to minimize: food that is trimmed away, left in trays, broken in handling, lost as powder, or rejected in packaging. Mixing the two makes planning impossible.
Where Product Waste Appears
Track each of these separately so waste can be attacked where it is largest:
- Trimming. Peel, stems, seeds and damaged parts removed in preparation. Some trimming is required by quality; excess trimming is cost.
- Peeling and seeds. A real share of weight for many fruits; the decision is how much to remove for the product's purpose.
- Cooking loss. Weight lost or gained in cooking, which changes the starting point before the dryer.
- Tray residue. Food that sticks to trays and never makes it into a package. Sticky and fatty products are the usual culprits.
- Powder loss. Dust and fines lost in milling, sieving, transfer and filling.
- Breakage. Crisp pieces chipped or crushed in unloading, moving and packaging.
- Packaging loss. Packages rejected at inspection for bad seals, wrong weights or damaged contents.
Planning With Losses
Losses enter the plan at three points:
- Sourcing: buy for usable yield, not gross weight. The raw material planning guide keeps trimming and waste separate from the yield math.
- Costing: rejected and lost product still cost money; include waste in cost per finished weight, per the batch costing guide.
- Process work: measure each loss category for a few batches; the largest one is usually the cheapest to reduce. The production metrics guide shows how to track them.
Loss is a metric, not a feeling
Write the losses down per batch: trim weight, residue, rejects. Numbers turn 'we lose a lot' into 'we lose 8% to tray residue', and that is when it becomes fixable. The Batch Log tool can carry the observations.
Frequently Asked Questions
Is water loss a 'loss'?
No, not in the business sense. Water loss is the intended result and belongs in yield math. Product waste is the loss a producer works to reduce.
Which loss should I attack first?
Measure the categories for a few batches and attack the largest, cheapest-to-fix one. Often it is tray residue, breakage or rejects, each with an obvious handling or preparation fix.
Should waste appear in pricing?
Yes. The product that never sells still cost money, and its cost must be carried by what does sell. Include waste in cost per finished weight and per package.
Key Takeaways
- Water loss is the process working; product waste is product that never reaches a package.
- Track trimming, residue, powder, breakage and rejects separately so the biggest loss is visible.
- Include waste in sourcing, costing and pricing; the metrics guide shows how to track it.
Related Guides
Continue through the Commercial Production Center with these related guides.