Biological Soil and Compost Assay: Sampling Instructions

Collect Samples:

• Take at least three small samples per pot or bed.
• Use gloves, scrape back any mulch, and remove the top 2–3 cm of soil.
• Collect a small handful of soil (approximately a quarter to half a handful) from each spot.

Combine and Package:

• Mix the samples thoroughly in a clean container.
• Place 250–500 ml of the mixed soil into a sealable plastic bag, leaving the bag half-full of air to allow microbes to breathe.
• Label the outside of the bag with your name and a reference (e.g., Indoor Bed 1, Outdoor Bed 2).

Important Notes:

• Avoid placing paper or other materials inside the bag as they can act as microbial food.
• Post the sample using a next-day delivery service to the address provided once your order is placed.
• Notify us via email or phone and include the tracking number if available.

Collect Samples:

• For small compost batches: Take at least 5 teaspoon-sized samples from just below the surface, avoiding dry or outer material.
• For large compost windrows: Collect a minimum of 20 samples from different areas and mix thoroughly.

Combine and Package:

• Place the mixed compost into a sealable plastic bag, filling it halfway to leave room for air circulation.
• Label the bag with the batch identification and the date of sampling.

Important Notes:

• Do not include any paper or foreign material in the bag, as it may feed microbes and alter results.
• Send the sample via next-day delivery service and notify us with the tracking number if applicable.