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A sample pack is 5kg of frass. This frass has not been composted and may contain small pieces (<5mm) of egg shell, wood fibre etc. It must be composted to meet regulation standards for retail use. A sample pack is a great volume for trials, testing and blend discovery. We also sell frass in 20kg, 50kg, 500kg and by the cubic metre. If you’re interested in larger volumes of frass, please email us to discuss collection or transport.