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DATA · GLOSSARY · RAW MATERIAL

What is coir pith?

Coir glossary · Updated 2026-09-22 · Also in Português →

Fine, spongy material remaining after fiber extraction from the coconut mesocarp, containing short residual fibers (<2 cm). Coir pith is the primary coir product for horticultural substrates due to its high water-holding capacity (400–800 mL/L), near-neutral pH (5.5–6.8) and good cation exchange capacity. Sold as compressed blocks, slabs and grow bags.

Coir pith: equivalents.

PT: pó de coco · ES: medula de coco / fibra de coco molida

Carve produces coir pith from dry coconut husk in Natural, Washed or Buffered grades, with EC measured and reported per lot (1:5 method) (source: Carve Coir Pith specification).

Source: Romero · Blok/WUR · Cadena. Definition from the Carve coir glossary, where the full source list is given.

Related terms.

Coir fiber: Fibers mechanically extracted from the mesocarp of mature coconut.

Coco peat / cocopeat: Common commercial name for coir pith.

Coir dust: Very fine particles (<0.5 mm) generated during fiber extraction.

See also: Coir Pith · back to the coir glossary.

CARVE
About this page. Part of the coir glossary maintained by Carve Biorrefinaria Agroindustrial Ltda, a coir pith and fiber producer in Paraipaba, Ceará, Brazil. Corrections: [email protected].