Everything you need to grow your own Black Pearl King Oyster mushrooms in as little as 4 weeks.

Yes. The bag arrives pre-sterilised and ready to inoculate, so you do not need a pressure cooker, specialist equipment or previous mushroom-growing experience. Just follow the included steps from inoculation through to harvest.

Each kit includes a pre-sterilised all-in-one grow bag, a 10ml Black Pearl King Oyster liquid culture syringe, sterile needle, alcohol swab and clear step-by-step instructions.

You only need a clean space to inoculate the bag, a warm place for colonisation and a spray bottle for the fruiting stage. Everything else is included.

Most growers can expect their first harvest in around 4–6 weeks from inoculation, depending on temperature and growing conditions.

During colonisation, keep your bag somewhere clean and warm, ideally around 20–24°C.

Once fully colonised, move it to a cooler space for fruiting, ideally around 10–18°C. A cool utility room, garage, porch or spare room can work well.

Yes, provided you have somewhere suitable for the fruiting stage. Black Pearl King Oysters can be grown indoors but need cooler conditions once the bag is ready to fruit.

Keep the bag sealed until you are ready to inoculate. Wipe the injection port with the alcohol swab, inject the included liquid culture, then place the bag somewhere warm and clean while the mycelium grows through the substrate.

The bag is ready once the substrate has turned mostly white with healthy mycelium. At that point, follow the included instructions to cut the fruiting area, move it to cooler conditions and begin misting.

This usually means they need more fresh air. Give the fruiting area better airflow while keeping humidity high, following the instructions provided with your kit.

Yes. Your first flush is usually the largest, but the block can often produce additional smaller flushes. After harvesting, rehydrate the block and return it to fruiting conditions.

Yields vary depending on temperature, humidity, fresh air and care. Your first harvest is usually the largest, followed by one or more smaller flushes.

They have a rich, savoury umami flavour and a firm, meaty texture. They are especially good sliced and pan-fried until golden, grilled, roasted or added to stir-fries, pasta, ramen and tacos.

Liquid culture gives you a simple way to start growing without needing to prepare grain spawn yourself. The syringe injects directly through the bag’s self-healing injection port, helping keep the process clean and straightforward.