Dry Box Calculator
Too much desiccant is wasted money. Too little is damaged cargo. The Dry Box Calculator is what GRF runs for your operation — free of charge, no purchase required.
How it works
Three steps and the plan is yours
You describe the operation
Route, transit time, cargo type, container type and size, and how the cargo is packed. Two minutes in the form below.
GRF runs the numbers
We cross the container air volume, the humidity and temperature profile of the route, the tightness of the enclosure and the expected dwell time.
You get the plan
Exact desiccant quantity, wall placement, inspection timing and replacement criteria — in writing.
What you receive
A written plan, not a guess
- Recommended desiccant quantity for your container
- Placement map: where to fix it and at what height
- Route risk window: where condensation usually happens
- Visual inspection and replacement criteria
- Cost estimate per protected container
When cargo is critical
Field measurement: proof inside the container
For high-value cargo or new routes, GRF installs dataloggers inside the container. They record temperature, relative humidity and dew point at set intervals throughout the voyage.
On arrival you receive a report with the real curves of your route and the measured safety margin against condensation — not estimated. It is the same method we use on long-haul shipments for food industry customers.
Start now
Request your calculation
Fill in the fields and the request arrives ready in our WhatsApp — our technical team gets back with the calculation.
FAQ
Frequently asked questions about the Dry Box Calculator
Is the Dry Box Calculator charged?
No. The calculation is free and carries no purchase obligation. It is how GRF has worked since 2014: correct sizing prevents both cargo damage and product waste.
Do I have to buy from GRF to get the plan?
No. You receive the written plan either way. We bet that correct sizing speaks for itself.
Does field measurement have a cost?
Field measurement is offered by GRF at no cost for customers with critical cargo or new routes. It depends on your shipment schedule, since it involves installing the dataloggers at stuffing.
Does it work for non-container cargo?
Yes. The same method applies to boxes, sealed packaging and warehousing — in those cases the calculation considers the package air volume and storage time.