Button mushroom, white - Agaricus bisporus - grain spawn for organic growing, AT-BIO-301 Strain Nr.: 105002

Button mushroom, white - Agaricus bisporus - Grain spawn for organic growing

Synonyms: portobello, champignon mushroom

The button mushroom is the edible mushroom that is cultivated the most worldwide. Originally this mushroom was brown / creme coloured. Through mutation the button mushroom became white, this is an albino. The albino variant does not have that strong a taste as the brown one but is cutlivated much more often.

The button mushroom is distributed throughout the temperate zones of the northern hemisphere. In Europe alone over 40 different strains have been discovered. The button mushroom lives in dung and during suitable weather conditions can be found from Mai to November especially on cow pastures and manure.

You receive ready colonised grain spawn for inoculation of convenient fruiting substrate. Larger quantities for commercial mushroom growing on request. Recommended only for experienced cultivators!

Production time: The culture is made fresh after ordering, production time 2 to 3 weeks.

This product is fresh produce and should be processed immediatly after delivery.
If the product cannot be processed immediatley, it can be stored in the fridge at 4° Celsius  for a maximum of two weeks.  

Organic button mushroom, white - Agaricus bisporus - Grain Spawn small

Mastergrain (sorghum based)
Certified for organic mushroom cultivation.
(Organic control station: AT-BIO-301, Austria Bio Garantie)
1 autoclavebag approx. 1.6 kg – 2.5 liter
Price: from 14.90 €

Organic button mushroom, white - Agricus bisporus - Grain Spawn large

Mastergrain (sorghum based)
Certified for organic mushroom cultivation.
(Organic control station: AT-BIO-301, Austria Bio Garantie)
1 autoclavebag approx. 3.3 kg – 6 liter
Price: from 16.90 €

Suitable Substrate: 
mushroom compost (plus casing soil)

Suitable method of cultivation:
indoor mycelium bags for cultivation in a greenhouse, mushroom bed / patch

Taxonomy:
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
Genus: Agaricus
Species: Agaricus bisporus
Spores: chocolate-brown, elipsoid, 5.5-8.5 µ x 4.0-6.5 µ


Growing conditions:
Phase 1: Mycelium growth
Temperature: 23 - 25°C
Humidity: 90 - 100%
Duration: 18 - 20 days
CO2: > 5,000 ppm
Fresh air exchange: 1 per hour
Light: n/a

Phase 2: Primordia formation / Fruiting initiation
(after applying casing soil)
Temperature: 16 - 18 °C
Humidity: 95 - 100%
Duration: 12 - 18 days
CO2: 400 - 800 ppm
Fresh air exchange: 5 - 7 per hour
Light: none needed 

Phase 3: Fruiting and Harvest
Temperature: 16 - 18°C
Humidity: 85 - 90% (95%) 
Duration: 4 - 7 days
CO2: <1,000 ppm
Fresh air exchange: 5 - 7 per hour
Light: none needed

Cropping cycle: every other week for 2-3 flushes