From Coconut Husk to Precision-Engineered Media

Every batch is tested for EC, pH, bulk density, and particle profile with full traceability

Our Process

Husk Selection

Coconut husk is the raw material for coir products. It is 100% organic & natural

Mature Brown Husks

Only mature brown husks from fully ripe coconuts are used — rich in lignin and naturally durable.

Non-Saline Inland

Sourced from non-saline inland coir clusters to ensure low EC (below 2.0 mS/cm) and clean pith quality.

No Green or Mixed Husks

Green or mixed husks are avoided due to instability and high cellulose content.

Visual Inspection

Each batch is visually inspected to remove oil-stained, moldy, or decomposed husks.

Moisture & EC Testing

Moisture tested (< 20%) and EC-checked before processing.

Natural Aging Process

Husks are naturally aged for 3–6 months under shade for natural leaching and tannin reduction.

Full Traceability

All lots are tagged and traceable with QC reports for ISO 9001 & organic certification compliance.

Eco-Friendly Processing

No chemical retting or open-water soaking — ensuring eco-friendly and pollution-controlled production.

Crushing & screening

From Husk to Substrate – The Mechanical Transformation

Step 1

Pulverizing

The mature coconut husk is mechanically crushed into smaller components.

Step 2

Defibering

CoCo peat and Long Coir Fibers are separated from the Husk .

Step 2 (a)

Screening & Grading

Material is sieved to remove dust and oversize particles, ensuring uniform size.

Step 2 (b)

Eco Control

Dust collection and noise reduction systems maintain a clean, pollution-free environment.

Final Output Products

From Husk to Substrate – The Mechanical Transformation

Product

Coco Chips

Cocopeats

Fiber Lounges

Key Role

Improves aeration

Retains moisture & nutrients

Strength & drainage

Application

Blueberry, tomato & orchid substrates

Potting mixes, seed trays

Structural stability in grow bags

Washing and Buffering Process

Washing and buffering are critical stages in the production of HUSKROOT™ coco substrates. These processes remove excess salts, tannins, and impurities from the raw coco pith and ensure the correct EC and pH levels for optimal plant growth and international export compliance.

Washing (Leaching Process)

The washing process reduces soluble salts and impurities by repeated soaking and rinsing using clean, low-saline water. This ensures that the electrical conductivity (EC) and pH of the coco pith are within
acceptable limits.

Key washing activities include:

Soaking coco pith in lined cement or HDPE tanks with clean water (EC < 0.3 mS/cm).
Changing water periodically until effluent EC drops below 0.5 mS/cm.
Allowing water to drain through filter beds before drying.
Recycling wash water after sedimentation and EC verification.

Washing Parameters

Parameter	Target Range	Test Method
EC (1:5 Extract)	< 0.5 mS/cm	EC Meter
pH	5.5 – 6.5	Digital pH Meter
Water EC	< 0.3 mS/cm	TDS / EC Meter
Tannin Color	Light brown to clear	Visual Observation

Pollution control is ensured by reusing water, preventing open discharge, and monitoring effluent EC regularly.

Buffering (Cation Exchange Process)

The buffering process replaces naturally occurring sodium (Na⁺) and potassium (K⁺) ions with calcium (Ca²⁺) and magnesium (Mg²⁺) ions. This improves nutrient compatibility and ensures that the substrate does not cause nutrient imbalance when used by growers.

Buffering process steps include:

Washing Parameters

Parameter	Target Range	Test Method
EC (1:5 Extract)	< 0.5 mS/cm	EC Meter
pH	5.5 – 6.5	Digital pH Meter
Water EC	< 0.3 mS/cm	TDS / EC Meter
Tannin Color	Light brown to clear	Visual Observation

Quality Assurance Checks

Environmental & Safety Compliance

Aspect	Control Measure
Water Use	Filtered and reused for multiple wash cycles.
Water Use	Settled, monitored, and reused where possible.
Chemical Handling	Operators use PPE and containment trays.
Certification	OMRI, CAAE, and ECOCERT compliant process.

✅ End Result

After washing and buffering, HUSKROOT coco pith achieves:

Low EC

< 0.5 mS/cm

Balanced pH

5.5 – 6.5

Toxicity Free

No Na⁺ or K⁺

Ready to Use

Organic & Hydroponic

HUSKROOT Quality Policy

“To consistently manufacture and supply eco-friendly, uniform, low-salt, high-performance coco substrate products that meet international horticultural standards through process control, precision testing, and continuous improvement.”

Quality Checkpoints Throughout the Coir Pith Manufacturing Process:

Stage	Parameter Checked	Test Method / Instrument	Acceptable Range	Frequency of Check / Remarks
Husk Selection	Moisture content	Moisture meter	< 20%	Ensures husks are semi-dry for crushing
Husk Selection	EC (Electrical Conductivity)	Portable EC meter	< 2.0 mS/cm (raw husk)	Reject saline husks
Crushing / Defibering	Fibre-pith ratio	Random sampling	Fibre 30–35%, Pith 50–55%, Chips 10–15%	Monitor uniformity
Screening & Grading	Particle distribution	Sieve analysis	Fine 0–1 mm, Medium 1–5 mm, Coarse 6–12 mm	Match substrate type
Washing & Leaching	EC of water extract	EC meter (1:5 ratio)	< 0.5 mS/cm	Ensure low salt levels
Drying	Moisture content	Moisture meter	< 15%	Prevent fungal growth
Compression & Packaging	Block weight	Digital scale	± 100 g tolerance	Uniform product weight
Final QC	Expansion volume	Soak test	70–80 L per 5 kg block	Rehydration capacity

Standard Instruments Used:

Instrument	Purpose
Digital EC Meter	Measures soluble salts (electrical conductivity)
Digital pH Meter	Checks substrate acidity/alkalinity
Digital pH Meter	Instant moisture percentage
Infrared Thermometer	Checks machine heat
Weighing Scale (Digital)	Measures weight consistency
Sieve Analysis Set	Determines particle distribution
TDS Meter	Confirms salt level in wash water
Magnetic Detector	Identifies metal particles
Expansion Cylinder	Measures rehydrated volume
Air Porosity Test Setup	Measures AFP & WHC

Testing Method Reference (Standard Practice):

Method	Description
EC & pH (1:5 test)	1 part cocopeat + 5 parts distilled water → stir 15 mins → filter → test EC/pH
WHC test	Saturate sample → drain 30 min → weigh retained water
AFP test	Fill container with water, measure air displacement after drainage
Ca/Na Buffer Test	Chemical analysis using atomic absorption or ion chromatography
Expansion Test	Rehydrate 5 kg block → measure expanded volume (L)
Moisture %	Weight loss on drying at 105°C (lab method) or moisture meter reading

Sun Drying Process

Purpose

The sun drying process is an essential stage in HUSKROOT coco substrate manufacturing. It naturally reduces moisture content of washed and buffered coco pith and chips on clean cement yards, ensuring a stable, hygienic substrate ready for compression and export. This eco-friendly drying method supports OMRI, CAAE, and ECOCERT organic standards.

To achieve safe and stable moisture levels (≤ 15%) using 100% sun drying on cement yards, ensuring product quality, purity, and sustainability.

Drying Process Overview

Input Material

Washed & Buffered Coco Pith (~60–70% moisture)

Output Material

Washed & Buffered Coco Pith (~60–70% moisture)

Sun Drying on Cement Yard – HUSKROOT Standard

Preparation – Clean and disinfect cement yards; ensure proper drainage and no soil contact.
Spreading – Spread material evenly (2–3 inch layer) to ensure uniform drying.
Turning – Turn or rake material every 2–3 hours for even sunlight exposure.
Moisture Monitoring – Use digital moisture meter until moisture ≤ 15%.
Collection – Collect before sunset to avoid dew absorption; transfer to storage immediately.

Quality Parameters Monitored

Parameter	Target Range	Instrument / Method	Purpose
Moisture	≤ 15%	Digital Moisture Meter	Prevent microbial growth
Color	Uniform reddish-brown	Visual Inspection	Indicates proper drying
Odor	Neutral	Sensory Check	Confirms freshness
Cleanliness	Dust-free, no soil contact	Visual Check	Maintains purity

Pollution & Safety Compliance

Aspect	Control Measure
Drying Yard	Cemented yard with proper drainage and no soil contact
Runoff Water	Collected and reused after sedimentation
Dust Control	Mild water misting during windy conditions
Worker Safety	Masks, gloves, and footwear provided
Contamination Control	Separate drying zones for washed and unwashed pith

Post-Drying Handling

Store dried coco pith in covered, ventilated sheds on raised pallets.
Label each batch with drying date and moisture record.
Avoid direct floor or wall contact to prevent moisture reabsorption.
Transfer directly to compression and packing unit once moisture target is confirmed.

Mixing and Compression Process

Mixing and compression are the final stages in the HUSKROOT coco substrate manufacturing process. These stages ensure uniform substrate blending and efficient compaction into export-grade blocks or grow bags, delivering consistency, quality, and performance for international horticultural markets.

Purpose

To create uniform substrate blends and compress them into export-grade blocks or grow bags, ensuring product consistency, quality, and efficient shipping.

1. Mixing Process (Blend Preparation)

Objective: To combine different grades of dried coco pith, chips, and fibres in precise ratios to achieve required physical properties such as air porosity, water-holding capacity (WHC), and bulk density.

Input Materials

• Dried coco pith

• Coco chips (for aeration)

• Coir fibre (for structure and drainage)

Mixing Procedure

Material Selection:

• Choose dried materials (moisture ≤ 15%) from graded bins (fine, medium, coarse).

Weighing:

• Use digital platform scales to measure each component according to blend formula (e.g., 70% pith : 20% chips : 10% fibre).

Mechanical Mixing:

• Load into ribbon blender or rotary drum mixer for 8–10 minutes.

• Add minimal water misting if required for dust control.

Homogeneity Check:

• Inspect texture and color consistency manually or by sieve sampling.

Quality Parameters – Mixing

Parameter	Target Range	Test Method
Moisture	12 – 15 %	Moisture meter
Bulk Density	80 – 110 kg/m³	Cylinder volume test
Air-Filled Porosity	30 – 45 %	Lab AFP test
Water-Holding Capacity	45 – 55 %	Soak–drain test

Output: Uniform substrate mix with stable physical structure, ready for compression.

2. Compression Process

Objective: To compact the mixed or graded coco pith into standard-sized blocks, bricks, or grow bags for easy handling, shipping, and use.

Equipment Used

• Hydraulic Compression Press

• Automatic Weighing Feeder

• Block Moulds (5 kg, 650 g, or customized)

• Shrink-Wrap or Poly Film Sealing Machine

Process Description

1. Feeding: The prepared mix is fed into the hydraulic press via conveyor.

2. Compression: Hydraulic pressure of 60 – 80 tons is applied to reduce bulk volume (compression ratio ≈ 5 : 1).

3. Moulding: The compressed block is shaped to standard export dimensions (30 × 30 × 12 cm for 5 kg).

4. Wrapping: Each block is wrapped in UV-stabilized LDPE film and heat-sealed.

5. Labeling: Stickers with product name, batch number, EC, pH, and date are affixed for traceability.

Quality Parameters – Compression

Parameter	Target / Standard	Instrument / Method	Frequency
Block Weight	5 kg ± 100 g	Digital scale	Every block
Compression Ratio	4 : 1 – 5 : 1	Volume vs. weight	Hourly
EC / pH	EC < 0.5 mS/cm, pH 5.5 – 6.5	EC/pH meter (1 : 5)	Each batch
Expansion Volume	70 – 80 L per 5 kg block	Rehydration test	Each lot
Appearance	Uniform color, clean edges	Visual	Continuous

Environmental & Safety Controls

Aspect	Control Measure
Noise & Vibration	Hydraulic press enclosed, shock-absorbing base
Dust Control	Suction ducts or water misting near feeder
Worker Safety	PPE – gloves, ear protection, mask
Waste Material	Reused in next batch or composted
Energy Efficiency	Hydraulic oil recycling and timed operation

Final Output Products

Product Type	Size	Typical Use
5 kg Block	30 × 30 × 12 cm	Greenhouse substrate, export
650 g Brick	20 × 10 × 5 cm	Retail packs & home gardening
Grow Bag	100 × 18 × 12 cm	Blueberry, tomato, cucumber cultivation
Loose Mix	Custom	Nursery & horticultural blends

Output: Uniform substrate mix with stable physical structure, ready for compression.

✅ End Result – HUSKROOT Quality Assurance

After mixing and compression, HUSKROOT coco substrates are:

Chemically balanced

(EC < 0.5 mS/cm, pH 5.5 – 6.5)

Physically uniform

(AFP 30 – 45%, WHC 45 – 55%)

Hygienic and moisture-controlled

(≤ 15 %)

Ready for global

dispatch with ISO 9001 and CAAE traceability

Quality Promise

Every batch is tested for EC, pH, bulk density, particle profile, moisture and assigned a traceable lot ID. Packaging is UV-protected, palletized, and containerized with moisture control.

huskroot.com

From Coconut Husk to Precision-Engineered Media

Our Process

1

2

3

4

5

6

Husk Selection

Mature Brown Husks

Non-Saline Inland

No Green or Mixed Husks

Visual Inspection

Moisture & EC Testing

Natural Aging Process

Full Traceability

Eco-Friendly Processing

Crushing & screening

Step 1

Pulverizing

Step 2

Defibering

Step 2 (a)

Screening & Grading

Step 2 (b)

Eco Control

Final Output Products

Product

Key Role

Application

Washing and Buffering Process

Washing (Leaching Process)

Buffering (Cation Exchange Process)

Quality Assurance Checks

Environmental & Safety Compliance

✅ End Result

Low EC

Balanced pH

Toxicity Free

Ready to Use

HUSKROOT Quality Policy

Sun Drying Process

Purpose

Drying Process Overview

Input Material

Output Material

Sun Drying on Cement Yard – HUSKROOT Standard

Quality Parameters Monitored

Pollution & Safety Compliance

Post-Drying Handling

Mixing and Compression Process

Purpose

1. Mixing Process (Blend Preparation)

Input Materials

Mixing Procedure

Quality Parameters – Mixing

2. Compression Process

Equipment Used

Process Description

Quality Parameters – Compression

Environmental & Safety Controls

Final Output Products

✅ End Result – HUSKROOT Quality Assurance

Chemically balanced

Physically uniform

Hygienic and moisture-controlled

Ready for global

Quality Promise