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Batch audit 2025

The same 200 litres, measured twice.

Grey is the market average from the independent 2025 audit. Blue is what left our hall in the same twelve months, across 1,340 deliveries.

Stainless steel drums on pallets in a bright storage hall
Refill hall, Vlaardingen. Every drum returns here, gets weighed, cleaned and refilled on the same site.
Market averageKalder
  • CO₂ per 200 litres delivered77% lower
    48 kg
    11 kg
  • Refill turnaround8 days sooner
    11 days
    3 days
  • Residue left in the drum3.8 points
    4.4 %
    0.6 %
  • Documented batch history6× longer
    6 months
    36 months
  • Cost per 1000 litres240 € saved
    780 €
    540 €
Read the audit method