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THE HASSLE-FREE, READY-TO-SPAWN SOLUTION FOR GROWING GOLDEN OYSTER AT HOME

Golden Oyster mushrooms are known for their vibrant yellow colour and delicate, slightly fruity flavour. Indigenous to eastern Russia, northern China and Japan, they have been cultivated and enjoyed for centuries for both culinary use and traditional wellness practices.

Today, Golden Oyster mushrooms are valued for their distinctive taste and are being studied for their potential nutritional benefits. They naturally contain vitamins and minerals, dietary fibre and protein, and are of interest for their bioactive compounds such as beta-glucans.

Golden Oysters add colour and flavour to a wide range of dishes. They can be sautéed, stir-fried, roasted, or used as an attractive garnish. Whether you’re a professional chef or a home cook, they’re a delicious way to elevate everyday meals.

Growing your own Golden Oyster mushrooms at home has never been easier with this Golden Oyster Mushroom Grain Spawn, produced by our trusted partners at Martian Mushrooms. Designed for beginners and experienced growers alike, this spawn removes much of the guesswork and makes mushroom cultivation simple and enjoyable.

The grain spawn arrives pre-colonised and ready to mix with your chosen substrate — no need for inoculating or waiting for grain to colonise. With the right conditions, you can expect thick, dense clusters of Golden Oyster mushrooms suitable for cooking, drying, or extraction.

THE BENEFITS

🍄 Lab-tested, high-quality living grain spawn for inoculating substrates
🌱 Compatible with a wide range of substrates and growing methods
🧬 Specially selected strains optimised for yield, nutrient density and flavour
🗓️ Harvest mushrooms in as little as 3 weeks
🛡️ Backed by Martian Mushrooms’ guarantee – produces mushrooms or the spawn will be replaced
💷 Save money by growing your own mushrooms at home
🏡 Requires little space and is discreet with minimal odour
🧠 Golden Oyster mushrooms contain bioactive compounds such as beta-glucans

HOW TO USE

The process is simple:

1. Inoculation
Mix the grain spawn with your substrate at roughly a 6:1 ratio, depending on substrate type. Hardwood or Masters Mix (hardwood + soy hulls) is recommended for Golden Oysters.

2. Prepare the Block
Once fully colonised, cut a small “X” or slit in the side of the block.

3. Maintain Humidity
Mist the block two to three times daily or use a humidity tent.

4. Fruiting Environment
Place the block in a fruiting chamber such as a MonoTub or Martha tent for best results.

A step-by-step online growing guide is available to help you through the process and maximise your chances of success.

GROWING CONDITIONS

Substrate: Hardwood or 50/50 hardwood & soy hulls (Masters Mix), hydrated to around 60%

Temperature

• Colonisation: ~25°C (77°F)

• Fruiting: 21–27°C (70–80°F)

Humidity: Over 80%

Light

• Colonisation: Dark

• Fruiting: Indirect or ambient light

Fresh Air Exchange: Regular airflow is essential

Cleanliness: A clean working area helps reduce contamination

INGREDIENTS

This spawn is produced by Martian Mushrooms using high-quality grain and carefully controlled sterile processes to encourage fast colonisation and reliable performance.

WHAT’S INCLUDED

1.5kg Golden Oyster Mushroom Grain Spawn Bag

STORAGE

Use as soon as possible after delivery. If not using immediately, store in a refrigerator. When refrigerated, spawn should remain viable for up to 3 months.

IMPORTANT DISCLAIMER

This product is manufactured and supplied by Martian Mushrooms and sold by us as an authorised retail partner. All product specifications, performance claims and guarantees are provided by Martian Mushrooms. We do not manufacture this product ourselves.

Any guarantees, including replacement of spawn, are fulfilled by Martian Mushrooms in accordance with their terms.