Everything you need to grow your own Shiitake 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. Shiitake simply requires more patience than faster oyster varieties.

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

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

Shiitake generally takes longer than oyster mushrooms because the fully colonised block needs an additional maturation stage before fruiting. Expect around 8–12 weeks from inoculation in suitable conditions, although timing varies by temperature and strain. Shiitake blocks are commonly left to mature for roughly six to seven weeks before being moved into fruiting conditions.

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

Once the block has matured, move it into cooler fruiting conditions. Aim for around 12–18°C, with high humidity, indirect light and good fresh air exchange. Shiitake pinning is commonly supported by cooler temperatures and high humidity.

Yes, as long as you have a suitable place for both stages. A warm cupboard or spare room can work well for incubation, while a cooler bright room, utility room or sheltered garage area may be better for fruiting.

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 clean and warm while the mycelium grows through the substrate.

The substrate should first become fully colonised with healthy white mycelium. Shiitake then needs time to mature, often developing a firmer, more established surface before fruiting. Follow the included instructions rather than fruiting the bag immediately after it turns white. Temperature drops and physical disturbance can trigger Shiitake to fruit too early, before the block has fully matured.

This usually means they need more fresh air. Increase airflow around the fruiting area while maintaining humidity and avoiding direct sunlight.

Yes. The first flush is often the largest, but the block can produce additional smaller flushes after resting and rehydrating.

Yields vary depending on temperature, humidity, fresh air and care. Your first flush is usually the largest, with further smaller harvests possible from the same block.

Shiitake have a rich, savoury umami flavour and firm, meaty texture. They are especially good pan-fried until golden, then added to ramen, stir-fries, pasta, risotto, soups, sauces and noodle dishes.

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.