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Casing SoilsMushroom PeatMushroom Engineering


Harte Peat has been producing casing for the worldwide market for over 20 years. The success of our business has been built on meeting our customer's expectations in relation to product quality, mix quality and freedom from disease.

Whatever your growing system, Harte Peat can provide casing to meet your requirements.

The Process

Harte Peat Mushroom casing Soil, is made up of a blend of Wet and dry Black Peat, wet or Dry Brown Sphagnum peat and either Limestone Flour or Spent Sugar Beet Lime (SSBL) or a blend of both to adjust pH above 7.0

Harte Peat own and control their own material resource, to minimise the possibility of disease or tramp materials from getting into the mix. Peat to be used in the mix, is only extracted as it is required to meet customer needs.

Following extraction, the raw peat is then transported to our production facility in Clones. The peat is then mixed to order, as different customers have different requirements. The peat is mixed with Spent Sugar Beet Lime which has been weathered and stored for more than 2 years, and also heat treated.

Each batch of casing soil is tested in an independent and approved laboratory for Salmonella, E-Coli and Listeria sp., before it is despatched for use.

Our products


The mushroom business in Ireland has changed dramatically in the past 5 years with the investment by growers in shelf growing systems and the associated filling equipment. More than 80% of our casing in Ireland is now delivered by bulk walking floor trailers and Harte Peat invested in a fleet of 6 new lorries and trailers to service this demand.


There is still a great demand for 1.5 m³ bags especially in the UK, where 22 bags are placed on a flat bed curtain sided trailer.


Within export market we can supply 3 different bag sizes.

Bags are shipped in 20’ containers and Harte Peat take care of all of the logistics of shipping

  • 2.5m³ bag “Big Bag”
  • 1.2m3 bags “Dumpy bag”
  • 50 litre bag “ Handy pack”

Please contact our sales office directly to discuss which form of packaging most suits your needs.

The production process area has controlled access and is subject to a HACCP plan with the area subject to daily washing and inspection. Harte Peat Ltd, has a policy of accepting unannounced visits from its customers to satisfy themselves of the levels of hygiene at the plant. Export customers should note that the company is a founding member of the Irish Code of Practice for Mushroom Casing Yards and is regularly audited by Bord Bia, (The Irish Food Board) for compliance with hygiene, HACCP and the Code of Practice standards.


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