Where the money comes from
- Spoilage reduction protects against batch loss, which dwarfs chemical cost
- Lower corrosion on filler and line equipment
- Continuous availability suits multi-shift bottling
- No hazardous chemical handling in a food-grade environment
The model
Replace a per-litre purchase price with a per-litre production cost — salt, water and electricity, typically cents per litre — and set the difference against the equipment. That is the first-order calculation, and for most commercial operations it alone produces a payback inside two years.
The savings buyers underestimate
| Category | Why it is missed | Typical significance |
|---|---|---|
| Storage space | Rent is not allocated to the chemical store | High in space-constrained facilities |
| Handling and admin | Spread across purchasing, receiving and stores | Moderate, but recurring |
| PPE and training | Budgeted separately from chemicals | Moderate |
| Dilution error | Invisible until an audit finding | High — this is where failures originate |
| Equipment corrosion | Attributed to age rather than chemistry | High over a decade |
| Contamination events | Treated as bad luck | Very high when it happens |
| Supply disruption | Only counted during a shortage | High and rising |
Building the business case
- Total the last twelve months of disinfectant and sanitiser invoices, including freight.
- Add the labour hours spent ordering, receiving, decanting and disposing.
- Add PPE and hazardous-materials training attributable to those products.
- Estimate the annualised cost of corrosion and of contamination events.
- Set the total against the quoted system, the salt, the power and the annual service.
The free sanitation audit produces exactly this, in writing, using your invoices and your utility rates rather than a generic template.