Portobello Mushroom Grain Spawn (1 pound)

Portobello Mushroom Grain Spawn (1 pound)Premium grain spawn cultured on 100% organic rye berries, featuring our professional grade Portobello strain. Specially formulated for commercial and home cultivation. Key Features: Fast colonization rates (7 21 days) 30 day shelf life at room temperature 6 month refrigerated shelf life 100% organic rye berry base Professional grade genetics Contamination free guarantee Cultivation Requirements: Composted substrate required Temperature: 65 75F for

Premium grain spawn cultured on 100% organic rye berries, featuring our professional-grade Portobello strain. Specially formulated for commercial and home cultivation.

Key Features:

• Fast colonization rates (7-21 days)
• 30-day shelf life at room temperature
• 6-month refrigerated shelf life
• 100% organic rye berry base
• Professional-grade genetics
• Contamination-free guarantee

Cultivation Requirements:

• Composted substrate required
• Temperature: 65-75°F for incubation
• 10°F temperature drop for fruiting
• Casing layer essential
• Humidity: 80-90%
• Controlled environment
• CO2 management critical

Expansion Ratios:

• 1:5 spawn to compost ratio
• Even mixing required
• Multiple break-and-shake points
• Day 3 and Day 7 mixing recommended

Storage Instructions:

• Store in dark place during incubation
• Maintain 85°F during colonization
• Avoid sealed plastic containers
• Use breathable cardboard boxes
• Keep accessible for periodic mixing
• Monitor for contamination regularly

Market Appeal:

• High market demand
• Restaurant industry standard
• Commercial production
• Retail markets
• Home growers