Coir & preparation · WITH COBY

How can I assess air space in a cocopeat container?

Use a suitable physical test and the actual intended container. Hand feel can help compare samples but does not provide a validated air-filled porosity percentage.

Teral grower guidance · Updated 27 October 2026

CobyYour coir & preparation guide

THE COCOPEAT CONNECTION

Why the root zone matters

Air space is the fraction not occupied by water under stated test conditions. It depends on the medium, packing and drainage state used in the measurement.

01 / OBSERVE

Three checks before you change anything

Ask the laboratory which physical-test method and container it uses.
Specify sample preparation, moisture conditioning and packing procedure.
Compare test results with rooting and irrigation observations from a crop trial.

02 / NARROW IT DOWN

What evidence do you have?

Choose the closest observation for a suggested next check.

A supplier percentage only

Request the method and test conditions before comparing it with another product.

A hand-squeeze impression

Treat it as an observation, not a quantified test. Arrange a suitable physical analysis if specification decisions depend on it.

Comparable laboratory results

Use them alongside the intended pot or slab trial. A single physical property does not determine all crop performance.

03 / TAKE THE NEXT STEP

Leave with something useful

Record the method, container dimensions and filling procedure with every physical result.

Keep in mind

Do not calculate air-filled porosity from bag dimensions or chip percentage alone.

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