Blue Oyster Mushrooms
Part 1: Growing Blue Oysters
Why Grow Blue Oyster Mushrooms?
The Blue Oyster Mushroom is a cultivator’s dream. Simple to grow and perfect for beginners, its rapid growth rate can sometimes double its size each day. It’s not just a fascinating subject but also a rewarding one.
What’s the Scientific Name?
Scientific Name: Pleurotus ostreatus
What Makes Blue Oysters Unique?
The Blue Oyster Mushroom forms expansive clusters, adopting a shelf-like structure typical of the Pleurotus genus. These mushrooms require an extraordinarily high level of fresh air exchange, surpassing most other commonly cultivated varieties.
Feature | Description |
---|---|
Size | Varies |
Shape | Shelf-like |
Fresh Air Requirement | High |
What is Fresh Air Exchange (FAE)
Fresh air exchange, or FAE is when the air in a growing room, or similar environment like a monotub is exchanged. The use of fans for grow rooms, or “fanning” for monotubs is necessary to eliminate excess C02 in the growing chamber.
In high CO2 environments, the Blue Oysters tends to produce elongated, thick stems and smaller caps. They also generate a significant amount of spores, rapidly filling your growing area with a dense cloud of spores.
Can You Forage Blue Oyster?
The Blue Oyster Mushroom is commonly found on hardwood logs, trees, and stumps, whether they are alive, dying, or decaying. They are widespread across North America and are typically found in the spring and fall seasons.
Are They Easy to Grow?
Absolutely, growing Blue Oyster Mushrooms is straightforward and well-suited for beginners.
What’s the Best Agar Medium?
Blue Oysters flourish on agar, particularly favouring malt yeast agar. The mycelial growth can be rhizomorphic and eventually becomes thick and fluffy.
What Type of grain spawn is best?
Rye grain serves as the most effective spawn, although sawdust is also a viable option. Some growers have reported higher yields when using straw instead of grain. The spawn has a unique, mushroom-like scent and can be easily broken up for simple bulk substrate spawning.
Most commercial growers use a grain spawn like millet, or rye berries. These are well-known and readily available materials that should be in your mushroom toolkit.
What Substrates Work Best?
Pasteurized straw logs are highly effective for growing Blue Oyster Mushrooms. These logs can yield multiple flushes if contamination is avoided. Supplemented sawdust blocks are another good choice, and definitely the most popular among commercial oyster farms.
What mushroom bags should you use.
The industry standard in musroom bags is Unicorn bag in Plano, Texas. Their bag are made in the USA and of superior quality to any mushroom grow bag on Amazon.
10 A Bags – Medium Size Grow Bag – Holds 5lbs of substrate.
10T Bags – Medium Size Spawn Bag – Holds 5lbs of spawn.
14A Bags – Large Size Grow Bag – Holds 7-10lbs of substrate.
XLS-A Bags – Extra Large Grow Bag – Holds 12lbs of subsrate.
Are Blue Oysters The Best Yielding?
The Blue Oyster Mushroom can achieve yields up to 200% biological efficiency. Harvest them by picking or cutting off entire clusters to extend their shelf life.
They are one of the best yielding mushrooms, and for that reason the blue oyster is reliably used by commercial mushroom farms accross the world.
The Blue Oyster Mushroom is not only a visual delight but also offers high yields. They are an excellent choice for outdoor cultivation due to their high fresh air requirements. Whether you’re a novice or an experienced grower, the Blue Oyster Mushroom is a rewarding addition to your cultivation endeavors.
Stay tuned for Part 2, which will delve into the weaknesses and challenges of cultivating Blue Oyster Mushrooms, and Part 3, which will explore the culinary uses and recipes featuring this versatile mushroom.

Part Two: Foraging Blue Oyster Mushrooms
Why Forage for Blue Oyster Mushroom?
Foraging for Blue Oyster Mushrooms offers a rewarding experience and a culinary adventure. These mushrooms are easy to identify, making them an ideal target for both novice and experienced foragers.
Where Can You Find Blue Oyster Mushroom?
Blue Oyster Mushrooms commonly grow on hardwood logs, trees, and stumps, whether living, dying, or decaying. They often thrive near water sources and can be found in lush, green rainforests. Sometimes, you might even discover them when you’re not actively looking, such as when crossing a creek or exploring a stump.
How to Identify Blue Oyster Mushroom?
Identification is crucial when foraging for any wild mushrooms. Blue Oyster Mushrooms have white or light-colored gills that run down their stem. They usually grow in shelf-like clusters and can vary in colors from white to beige, yellow, and brown. The key point is they always grow on wood, either dead logs or living trees.
When is the Best Time to Forage?
The best time to forage for Blue Oyster Mushrooms is during cooler weather, often after fall or spring rains. However, you can also find them in winter and sometimes even in summer. Always carry a mushroom guidebook when you go foraging to double-check your finds.
What Are the Culinary Uses?
Blue Oyster Mushrooms are highly regarded for their taste. They are excellent when sautéed in butter with a sprinkle of fresh thyme. Their meaty texture and unique flavor make them a versatile ingredient in various dishes.
Tips for First-Time Foragers
Foraging for Blue Oyster Mushrooms is generally easy due to their distinct features. However, always exercise caution and make sure to consult a guidebook for accurate identification. It’s also a good idea to carry a container or bag to collect your finds.
Foraging for Blue Oyster Mushrooms is an enriching experience that combines the joy of being in nature with the excitement of discovering a culinary treasure. Whether you’re a beginner or a seasoned forager, the Blue Oyster Mushroom offers a rewarding and tasty adventure. This article incorporates information from Grow Forage Cook Ferment, a trusted source for foraging tips and recipes.

Part 3: oyster mushroom recipe
Oyster Mushroom and Garlic Cream Pasta: A Chef’s Delight
Equipment Needed:
- Large skillet
- Large pot for boiling pasta
- Wooden spoon
- Measuring cups and spoons
- Cutting board
- Chef’s knife
- Cheese grater
- Colander
- Serving plates
Ingredients:
- 2 cups Blue Oyster Mushrooms, sliced
- 3 cloves garlic, minced
- 1 cup heavy cream
- 1/2 cup Parmesan cheese, grated
- 2 tbsp olive oil
- Salt and pepper to taste
- 8 oz fettuccine pasta
- Fresh parsley for garnish
Cooking Instructions:
- Preparation: Start by boiling water in a large pot for the fettuccine pasta. While the water is boiling, slice your mushrooms and mince the garlic.
- Cook Pasta: Once the water is boiling, add a pinch of salt and cook the fettuccine pasta according to package instructions. Drain the pasta using a colander and set aside.
- Sauté Garlic: In a large skillet, heat olive oil over medium heat. Add the minced garlic and sauté until it releases its aroma but doesn’t brown—about 1-2 minutes.
- Cook Mushrooms: Add the sliced mushrooms to the skillet. Cook until they release their juices and become tender—about 5-7 minutes.
- Add Cream: Pour in the heavy cream and bring the mixture to a gentle simmer. Allow it to simmer for about 2-3 minutes.
- Cheese and Season: Stir in the grated Parmesan cheese and season the sauce with salt and pepper to taste.
- Combine: Add the cooked fettuccine pasta to the skillet. Use a wooden spoon to toss the pasta, ensuring it’s well-coated with the creamy mushroom sauce.
- Garnish and Serve: Transfer the pasta to serving plates and garnish with freshly chopped parsley.
Chef’s Perspective:
From a chef’s standpoint, this Blue Oyster Mushroom and Garlic Cream Pasta is a symphony of flavors and textures. The Blue Oyster Mushrooms bring a unique, earthy depth that pairs beautifully with the richness of the garlic cream sauce. The Parmesan cheese adds a salty, umami kick, elevating the dish to a whole new level. The use of fresh parsley not only adds color but also a subtle freshness that cuts through the richness, making each bite as exciting as the first.
The texture of the dish is equally impressive. The Mushrooms offer a meaty bite, providing a satisfying contrast to the silky smoothness of the cream sauce and the al dente fettuccine. It’s a dish that promises comfort yet delivers sophistication, making it perfect for a quiet dinner at home or a festive gathering.