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MushroomFarming / technical parameter

Button Mushroom climate system

Understand temperature, humidity, carbon dioxide, airflow, evaporation and condensation as one interacting system.

Practical explanation + detailed referenceSources & review ↓
White button mushrooms on casing soil in long shelf beds inside a commercial cropping room near Eger, Hungary.
Real cultivation photograph. Read its source for location and context; it is not a universal operating specification.Andrew Bossi · CC BY-SA 2.5View full photograph ↗
On this pageChoose a section, or keep reading below

Read this in the full guide: Run a Button mushroom crop from receipt to room reset →

Understand the topic

Start with the explanation.

A growing-room display is a partial model of what the crop experiences. Useful climate control joins calibrated measurements, crop observations, equipment state and spatial distribution.

Part 01

Why this matters

The climate hub connects six parameter guides to the crop stages where they matter.

Illustration of compost receipt and a probe measurement.
AI teaching illustrationReceive the right compost

The delivered compost stage determines the work still needed. Phase II and Phase III deliveries require different handovers.

Conceptual explanation—not a real farm photograph, diagnostic finding or construction specification.
Part 02

What to look for

Build a record before making a change.

  • Air and compost temperatures
  • Air moisture state
  • Carbon dioxide distribution
  • Crop-zone movement, evaporation and surfaces
Part 03

How to make the next decision

Use the observation to narrow a decision, then verify the response.

  • Define where a value is measured
  • Control interactions rather than isolated setpoints
  • Map rack-zone differences
  • Verify the response after every change
Part 04

What to check before moving on

This topic cannot be interpreted in isolation.

  • Crop stage
  • Room load
  • Envelope
  • Air-handling system
  • Sensor calibration
Part 05

On the farm

Start in the room with air and compost temperatures and air moisture state. Record location, stage and recent events before changing the process.

Part 06

The technical explanation

The technical model joins crop stage, room load, envelope. Any operating value must be attached to a registered parameter, measurement location and applicable condition.

Part 07

What the evidence can tell you

This page is grounded in: Farm Design for White Button Mushroom Cultivation; Mushroom Cultivation, Marketing and Consumption. Source provenance does not remove the need to check stage, system, date and local applicability.

Illustration of careful Button mushroom harvesting into clean food-contact containers.
AI teaching illustrationHarvest and reset

Picking, grading, packing and room reset are connected tasks. A strong flush can still lose value through poor handling or delayed dispatch.

Conceptual explanation—not a real farm photograph, diagnostic finding or construction specification.

Keep exploring

Every part of this topic.

Choose the stage, material or decision you need to understand next.

01

Temperature in Button Mushroom rooms

Read air, compost, surface and product temperature as different measurements with different decisions.

02

Humidity in Button Mushroom rooms

Use relative humidity with temperature, crop-surface condition and sensor context.

03

Carbon dioxide in Button Mushroom cultivation

Interpret carbon dioxide as a crop and ventilation signal across stage, location and room load.

04

Airflow in Button Mushroom rooms

Separate fresh air, recirculation, distribution and crop-zone velocity when diagnosing a room.

05

Evaporation and the crop surface

Use crop, casing, air and water observations to reason about moisture movement.

06

Condensation risk in growing rooms

Understand why surfaces become wet and how envelope, climate and operations contribute.

Go deeper

Technical reference, records and tools.

Detailed crop-stage information, parameters, diagrams and specialist tools are kept together below. This material retains its source conditions and review limits.

Open the complete technical reference

Button Mushroom · technical parameter

Button Mushroom climate system

Agaricus bisporus

Understand temperature, humidity, carbon dioxide, airflow, evaporation and condensation as one interacting system.

Publication
Public editorial page
External review
Not yet recorded · needed from Button Mushroom technical reviewer
Updated
2026-08-22
Evidence records
2
Long tiered metal racks packed with colonised oyster-mushroom fruiting bags inside a grow room, Bicol, Philippines.
Grow room with tiered racks of oyster-mushroom fruiting bags (Philippines). Photo: MarvinBikolano, CC BY-SA 4.0. Source

Room climate by crop stage

Source: ICAR-DMR manual

10°C15°C20°C25°C30°CSpawn run22-25°C85-95% RHCase run23-25°C90-95% RHPinning16-18°C85-90% RHCropping15-18°C80-85% RH
Temperature bandRelative humidity

Quick orientation

A growing-room display is a partial model of what the crop experiences. Useful climate control joins calibrated measurements, crop observations, equipment state and spatial distribution.

01

System role

The climate hub connects six parameter guides to the crop stages where they matter.

02

What to observe

Build a record before making a change.

  • Air and compost temperatures
  • Air moisture state
  • Carbon dioxide distribution
  • Crop-zone movement, evaporation and surfaces

03

Decision framework

Use the observation to narrow a decision, then verify the response.

  • Define where a value is measured
  • Control interactions rather than isolated setpoints
  • Map rack-zone differences
  • Verify the response after every change

04

Dependencies and handoffs

This topic cannot be interpreted in isolation.

  • Crop stage
  • Room load
  • Envelope
  • Air-handling system
  • Sensor calibration

05

Practical layer

Start in the room with air and compost temperatures and air moisture state. Record location, stage and recent events before changing the process.

06

Technical layer

The technical model joins crop stage, room load, envelope. Any operating value must be attached to a registered parameter, measurement location and applicable condition.

07

Evidence boundary

This page is grounded in: Farm Design for White Button Mushroom Cultivation; Mushroom Cultivation, Marketing and Consumption. Source provenance does not remove the need to check stage, system, date and local applicability.

Progressive depth

Go deeper without losing the field question.

PracticalWhat to notice in the room
  • Air and compost temperatures
  • Air moisture state
  • Carbon dioxide distribution
  • Crop-zone movement, evaporation and surfaces
TechnicalHow the interacting system is interpreted
  • Crop stage
  • Room load
  • Envelope
  • Air-handling system
  • Sensor calibration
ResearchWhich evidence records govern this page
  • ICAR-DMR-FARM-DESIGN
  • ICAR-DMR-CULTIVATION-MANUAL

Technical registry

The numbers for this stage, with their source.

Values are published from ICAR-DMR guidance with the stage and measuring point they apply to. A parameter still marked pending has no published Indian value yet.

BUTTON.CLIMATE.AIR_TEMPERATURE

Room air temperature

14 to 25 °C

Spawn run 22 to 24 °C, case run 23 to 25 °C, fruiting 15 to 17 °C in controlled rooms; the seasonal tables give 14 to 18 °C for fruiting.

Stage
Crop-wide
Measured at
Defined crop-zone position
Crop meaning
The control variable that interacts with compost temperature, evaporation and crop stage.
Applicable conditions
Stage; Strain; Sensor location; Room system
published sourced
BUTTON.CLIMATE.COMPOST_TEMPERATURE

Compost temperature

20 to 25 °C

24 to 25 °C during spawn run, easing to about 20 °C once the room is aired for pinning.

Stage
Colonisation and cropping
Measured at
Within compost at defined bed positions
Crop meaning
Crop heat, which can sit above room-air readings.
Applicable conditions
Stage; Crop load; Probe placement
published sourced
BUTTON.CLIMATE.RELATIVE_HUMIDITY

Relative humidity

80 to 95 % RH

About 95 percent during spawn run and case run, 80 to 85 percent during cropping.

Stage
Crop-wide
Measured at
Defined crop-zone position
Crop meaning
Air moisture state; it does not equal crop-surface wetness.
Applicable conditions
Air temperature; Sensor accuracy; Crop stage
published sourced
BUTTON.CLIMATE.CO2

Carbon dioxide concentration

800 to 15,000 ppm

10,000 to 15,000 ppm during spawn run with no fresh air; 800 to 1,000 ppm for pinning; 1,000 to 1,500 ppm during cropping with 20 to 30 percent fresh air.

Stage
Spawn run through cropping
Measured at
Representative room and rack positions
Crop meaning
A crop-activity and ventilation signal that needs stage context.
Applicable conditions
Stage; Crop load; Fresh-air strategy
published sourced
BUTTON.CLIMATE.AIR_VELOCITY

Crop-zone air velocity

0.15 m/s

ICAR-DMR specifies about 15 cm per second over the beds, with 6 air changes per hour in the first two flushes and 4 later.

Stage
Pinning and cropping
Measured at
Crop level at mapped rack positions
Crop meaning
Local evaporation and distribution over the beds, not ventilation quantity.
Applicable conditions
Rack geometry; Crop density; Instrument
published sourced
BUTTON.CLIMATE.DEW_POINT_MARGIN

Condensation risk margin

Technical value pending verification

Stage
Crop-wide
Measured at
Derived from calibrated air and surface measurements
Crop meaning
Connects surface temperature with air moisture state to explain condensation risk.
Applicable conditions
Surface identity; sensor uncertainty; transient door or defrost events
verification pending
Evidence and review record2 mapped sources

Sources support the page architecture and conceptual guidance. Technical values remain governed separately in the Button registry.

Tier A · foundational

Farm Design for White Button Mushroom Cultivation

Room planning, workflow, environmental-control architecture and engineering vocabulary.

Accessed
2026-08-22
Publisher
ICAR mushroom research institute
Open original source
Tier A · foundational

Mushroom Cultivation, Marketing and Consumption

Broad cultivation, post-harvest and market context. Values are not promoted without page-level review.

Accessed
2026-08-22
Publisher
ICAR-Directorate of Mushroom Research
Open original source

Read the evidence

Sources & review.

Editorial update: 2026-08-22. Independent technical review is not recorded for this entry.

  1. Farm Design for White Button Mushroom Cultivation ↗

    ICAR mushroom research institute · Foundational official bulletin. Engineering guidance must still be checked against current codes, equipment and project conditions.

  2. Mushroom Cultivation, Marketing and Consumption ↗

    ICAR-Directorate of Mushroom Research

Reading a source is not the same as applying its instructions to every farm. Confirm species, strain, crop stage, system, region and publication date. Old chemical recommendations are not current-use instructions.

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