Blue Oyster RTF Fruiting Block - 5 lb

Blue Oyster Ready-to-Fruit Block — Skip Inoculation Entirely

This 5 lb supplemented hardwood sawdust block is already fully colonized with Blue Oyster (Pleurotus ostreatus var. columbinus) mycelium. No syringes, no waiting weeks for colonization — these blocks come ready to fruit. Just provide humidity and fresh air, and you'll have mushrooms in 7-14 days. The closest thing to magic you can put on your kitchen counter.

Specifications

• Species: Blue Oyster (Pleurotus ostreatus var. columbinus)
• Block weight: 5 lb supplemented hardwood sawdust
• Status: Fully colonized — ready to fruit immediately
• Time to first harvest: 7-14 days

How to Use

• Cut an X in the bag plastic to expose the colonized block.
• Mist daily and maintain high humidity (85-95%).
• Provide fresh air exchange and indirect light.
• Harvest when caps begin to flatten but before edges curl upward.

Storage

Keep sealed until ready to fruit. Store at room temperature (65-75°F) and fruit within 7-14 days of receipt for best results. Do not refrigerate.

Quality & COA

Each block is colonized in our clean facility and inspected for full, healthy mycelial coverage before shipping. Representative blocks are test-fruited to confirm production.

How to Use This Ready-to-Fruit Block

1. Unfold or open the bag — your block is already fully colonized and ready to fruit.
2. Mist daily with clean water to maintain humidity.
3. Provide fresh air exchange by fanning the bag or leaving it slightly open.
4. Maintain 80-90% humidity and temperatures appropriate for the species (typically 65-75°F).
5. Harvest when caps open — pick mushrooms before the veil breaks for best quality.

Tip: These blocks are ready to go — no incubation or colonization needed. Just provide humidity and fresh air.

What's in the Box

• 1x ready-to-fruit block in breathable bag