Harvest·Field note
The Grade A acceptance criteria, written down.
Cluster size, cap colour, moisture at pack, shelf-day target. What every outgoing consignment is measured against.
Read on the blogChennai · Controlled-environment farming · Bulk supply
ValTech Farms Chennai operates two production units — an automated indoor mushroom facility and a one-acre polyhouse growing capsicum and European cucumber. Every crop held to a written Grade A spec. Sensor-controlled, traceable, dispatch-ready.
Oyster mushrooms · capsicum · European cucumberRun by VanaOSIndoor unit · one-acre polyhouseSensor-controlledFounder-operated · two production unitsBatch traceabilityFSSAI-aligned · scheduled dispatchGrade A across the boardOyster mushrooms · capsicum · European cucumberRun by VanaOSIndoor unit · one-acre polyhouseSensor-controlledFounder-operated · two production unitsBatch traceabilityFSSAI-aligned · scheduled dispatchGrade A across the board
The short version
Two units. Three crops. Sensor-controlled throughout. Every batch logged. Founder-operated. Every delivery planned.
An automated indoor mushroom facility and a one-acre polyhouse — both held to the same documented standard. Oyster mushrooms, capsicum, and European cucumber, supplied on a standing schedule. Leafy greens in development. One supplier, multiple lines.
The system
Three things decide a mushroom crop: temperature, humidity, and CO₂. VanaOS controls all three continuously — across two growing rooms, around the clock. When any variable drifts, the system corrects it before the crop feels it.
Node
On every rack.
Local sensors and actuators per growing zone — temperature, humidity, CO₂, airflow.
Edge
In every room.
Local controller holds the climate even when the cloud is down or power dips.
Cloud
On every screen.
Aggregated batch logs, deviation alerts, traceability per consignment.
The operation — open books
Two units. These are the numbers.
0sq ft
Indoor mushroom unit
0acre
Polyhouse — capsicum & cucumber
0bags
Mushroom substrate capacity
0×7
Climate monitoring, both units
Inside the facility
A look at what runs the farm.
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01
Cultivation rack
20 ft × 2 ft × 8 ft
Welded steel frames hold five mesh tiers each. 200 substrate bags per rack, 17 racks across both units.
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02
Climate automation
Sensor-driven setpoints
Temperature, humidity, CO₂, and airflow held to species-optimal ranges. Drift triggers alerts before yield is affected.
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03
Substrate prep
Sterilized & inoculated
Substrate stream prepared, sterilized, and inoculated under controlled conditions. Contamination rates measured, tracked, engineered down.
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04
Mist & humidification
Pulse-fired RH control
Cool-mist rails over every rack column. Nozzles fire on cycle to hold relative humidity per growth phase.
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05
Harvest & grading
Grade A only
Picked at peak, graded at the rack, packed under cold chain. Culls rejected at the packing stage — never at the buyer's.
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06
Dispatch
Cold-chain to door
Cold-chain integrity from harvest through dispatch. Every consignment auditable back to substrate lot.
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How we grow
Substrate. Pasteurised. Never reused. Climate. Sensor-held. Every variable logged. Harvest. Hand-picked at peak. Cold within the hour.
01Substrate
The foundation of every Grade A cluster.
Paddy straw and farm residue, pasteurised under controlled temperature and time. Every batch carries a lot number. Nothing reused, nothing assumed.
02Climate
Two rooms. Both independent.
Temperature, humidity, CO₂ — each held within the fruiting spec the crop demands. Each room runs independently on its own controller. A drift in one does not touch the other.
03Harvest
Picked at the cluster's prime.
Harvested by hand when the cap edge curls and the spore line is about to drop. Packed cold within the hour. The substrate lot number goes on the dispatch slip.
The line we hold
No unverified spawn. No reused substrate. No skipped log entries. No claim we cannot prove.
Every number on our dispatch slip traces back to a substrate lot, a room log, and a sensor record. The audit trail exists for the buyer — not as a formality, but as proof.
“The farm that cannot explain its yield cannot improve it.”
Operating principle — ValTech Farms Chennai
From the farm
Dispatches, not press releases.
Science·Editorial
Why the cold chain is not optional.
Beta-glucan and protein content begin degrading within hours of harvest. Here is what the data says, and what we do about it.
Read on the blogCompany·Dispatch
The case for a single grade.
Variety suits a chef-supply operation. Bulk supply runs on a different logic entirely. Here is the argument we made when we started.
Read on the blog