Spore Supplies

Spore Supplies is a United Kingdom-based mycology supply company that sells mushroom growing equipment and consumables to hobbyist and amateur mushroom growers. Its catalogue centres on ready-to-use, sterilised products: all-in-one mushroom grow bags, monotub grow kits, sterilised CVG (coco coir, vermiculite, gypsum) substrate bags, sterile millet grain bags for DIY spawn production, liquid culture syringes, and general mycology equipment. The company positions itself around reliability, low contamination rates, and fast turnaround, describing itself as offering some of the fastest mycology supply dispatch in the UK. The business grew out of a hobbyist mushroom-growing project started during the COVID-19 lockdown. According to the company's own account, its founders became frustrated by a lack of reliable vendors and long lead times for sterilised substrate and grain, and decided to invest in mycology equipment to produce their own. An earlier venture, a small mushroom farm called 'Sporehouse' in the rural market town of Wotton-under-Edge, was abandoned after the difficulties and hazards of large-scale substrate production became clear. Spore Supplies itself was later established in business premises in Watford, where an industrial, medical-grade autoclave allowed the team to produce small batches of sterile grains and substrates. Operationally, Spore Supplies differentiates itself through its sterilisation process. Substrates and grain bags are autoclaved in a medical-grade autoclave — for example, CVG substrate for 1 hour 30 minutes and millet grain for 2 hours 30 minutes — at a pressure of at least 15 PSI and a minimum of 121°C, then opened inside a cleanroom and heat-sealed in front of a laminar flow hood. Products are sold through the company's own e-commerce website with same-day dispatch claims, batch tracking, and included 'how to' guides. The range is aimed at growers of gourmet and exotic fungi, including oyster mushrooms, lion's mane/coral tooth, enoki/velvet shank, and other species, while the company states that its products exclude research spores. Spore Supplies operates primarily in the UK market and sells direct to consumers online. It is a private, independent business rather than a listed company, and no parent company or outside owner is identified in the available sources. Its brand identity is built around the hobbyist mycology community: practical grow kits, sterile consumables, educational content such as a mushroom grow kit quiz and step-by-step growing guides, and a focus on reducing contamination for home growers.

Spore Supplies was founded as a UK mycology supply business after its founders began growing mushrooms as a hobby during the COVID-19 lockdown. According to the company's own 'About Us' page, the founders quickly became obsessed with the hobby and moved into more complex grows, which created a need for lower contamination rates. They found that this was where things 'bottle necked': there was a lack of reliable vendors on the market and long lead times from existing suppliers. The team decided to invest in mycology equipment and learn substrate and grain spawn production themselves. The first venture was a small mushroom farm called 'Sporehouse', intended to be located in the rural market town of Wotton-under-Edge. The company describes trials and tribulations building out a grow operation in an old, disused bank. It soon became clear that large-scale substrate production was expensive, complicated, and, most importantly, dangerous. During a test run of a DIY bulk substrate steam-steriliser, the team nearly set the old bank on fire. They decided to abandon the farm idea and focus on getting a steriliser working. After roughly six months of searching for a safe, reliable solution, a new project was born. Spore Supplies was brought to fruition through an opportunity to operate in business premises in Watford. With an industrial, medical-grade autoclave, the company produced its first small batches of sterile grains and substrates, aiming to supply amateur mycologists across the UK with the fastest turnaround times on the market. From that base, Spore Supplies built an e-commerce catalogue of sterilised consumables and grow kits. Its product pages describe a standardised process: substrates and grain bags are autoclaved in a medical-grade autoclave — CVG substrate for 1 hour 30 minutes and millet grain for 2 hours 30 minutes — at a pressure of at least 15 PSI and a minimum of 121°C, ensuring micro-organisms are killed off. The autoclave is then opened inside a cleanroom, and the bags are heat-sealed in front of a laminar flow hood to prevent contamination. Products include all-in-one mushroom grow bags, monotub grow kits, sterilised CVG substrate bags, sterile millet grain bags with injection ports, and liquid culture syringes. The company markets same-day dispatch, batch tracking, and included 'how to' guides, and provides educational content such as a mushroom growing kit quiz and a four-step growing guide. Its range is aimed at gourmet and exotic mushroom species, and the company states that its products exclude research spores.

• Founders begin growing mushrooms as a hobby during the COVID-19 lockdown.

• First venture 'Sporehouse', a small mushroom farm in Wotton-under-Edge, is attempted and later abandoned after difficulties and safety concerns with large-scale substrate production.

• Spore Supplies is established in business premises in Watford with an industrial, medical-grade autoclave.

• First small batches of sterile grains and substrates are produced for amateur mycologists across the UK.

Reliable, fast-turnaround sterilised mycology supplies for hobbyist mushroom growers in the UK, with a focus on low contamination rates and ready-to-use grow kits.

• 1.5Kg Magic Myc® All In One Mushroom Grow Bag – Inject & Forget

  An all-in-one mushroom grow bag marketed as 'Inject & Forget', priced at £15.99 GBP.

• Monotub Mushroom Grow Kit – CVG & Grain

  A monotub grow kit including CVG substrate and grain, priced from £44.99 GBP (regular £58.97 GBP).

• Sterilised CVG Mushroom Substrate Bag

  A sterilised substrate bag using a classic coco coir, vermiculite and gypsum mix, available in 2KG and 3KG variants, priced from £18.99 GBP. Autoclaved for 1 hour 30 minutes at at least 15 PSI and 121°C, then sealed in a cleanroom.

• Sterile Millet Grain Bag for DIY Mushroom Spawn

  A sterile millet grain bag with injection port and T filter, available in 1kg and 1.5kg variants, priced from £13.99 GBP. Millet is soaked for 24 hours, then autoclaved for 2 hours 30 minutes at at least 15 PSI and 121°C. A 'buy 4 for the price of 3' promotion applies.

• Mushroom Liquid Culture Syringes UK

  Liquid culture syringes that allow mycelium to grow on a 3D surface.

• Mycology Equipment

  General mycology equipment and cultivation tools.

1. 1Mycology Equipment & Mushroom Grow Kits – Spore Supplies UKsporesupplies.co.uk
2. 2About Spore Supplies - Fastest Mycology Supplies In The UKsporesupplies.co.uk
3. 3CVG Mushroom Substrate Bags | Grows Gourmet & Exotic Fungi – Spore Suppliessporesupplies.co.uk
4. 4Sterile Millet Grain For Mushroom Spawn | Same Day Dispatch – Spore Suppliessporesupplies.co.uk
5. 5Spore Supplieswikidata.org