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Whether you're preparing grain spawn for fruiting blocks, expanding your culture, or experimenting with different mushroom varieties, rye grain delivers dependable performance. \u003c\/p\u003e","brand":"westcoastmushrooms","offers":[{"title":"5 kg","offer_id":56831330156926,"sku":null,"price":8.99,"currency_code":"GBP","in_stock":true},{"title":"10 kg","offer_id":56831330189694,"sku":null,"price":15.99,"currency_code":"GBP","in_stock":true},{"title":"25 kg","offer_id":56831330222462,"sku":null,"price":36.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/3477\/2606\/files\/WCM_Website-056.jpg?v=1778599974"},{"product_id":"popcorn-grains","title":"Popcorn Grains","description":"\u003cp\u003ePopcorn grains are an excellent choice for cultivating mushroom spawn, offering superior colonisation rates and reliable results for both beginners and experienced cultivators. These premium-quality grains provide an ideal substrate base with their naturally porous structure, allowing mycelium to penetrate thoroughly and establish robust networks throughout the medium. The light, fluffy texture of popcorn grains ensures optimal air circulation during the colonisation process, reducing the risk of contamination whilst promoting vigorous mycelial growth. Each grain acts as an individual nutrient source, maximising the surface area available for mycelium attachment and expansion. Perfect for a wide range of mushroom species, popcorn grain spawn is particularly valued for its consistency and ease of use. Whether you're preparing spawn for oyster, shiitake, or specialty varieties, these grains deliver dependable performance batch after batch. Store in a cool, dry environment to maintain viability. Ideal for pressure cooking and sterilisation protocols. A staple choice for serious cultivators seeking quality and reliability in their spawn production.\u003c\/p\u003e","brand":"westcoastmushrooms","offers":[{"title":"5 kg","offer_id":56831330353534,"sku":null,"price":8.99,"currency_code":"GBP","in_stock":true},{"title":"10 kg","offer_id":56831330386302,"sku":null,"price":15.99,"currency_code":"GBP","in_stock":true},{"title":"25 kg","offer_id":56831330419070,"sku":null,"price":36.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/3477\/2606\/files\/WCM_Website-049.jpg?v=1778599973"},{"product_id":"millet-grains","title":"Millet Grains","description":"\u003cp\u003eMillet grain is a premium substrate choice for cultivating mushroom grain spawn. This small, round cereal grain offers excellent colonisation rates and provides an ideal nutrient balance for a wide variety of mushroom species, from oyster and shiitake to lion's mane and wine caps. The light, fluffy texture of millet allows for superior mycelium penetration and rapid spawn development. Its low moisture content makes it less prone to contamination compared to heavier grains, whilst still delivering the carbohydrates and minerals your cultures need to thrive. Each grain remains distinct during sterilisation, preventing clumping and ensuring even distribution throughout your spawn jars or bags. Whether you're a seasoned cultivator or expanding your spawn production, millet grain delivers consistent, reliable results. Its versatility makes it suitable for both small-scale home projects and larger commercial operations. \u003c\/p\u003e","brand":"westcoastmushrooms","offers":[{"title":"5 kg","offer_id":56831330550142,"sku":null,"price":8.99,"currency_code":"GBP","in_stock":true},{"title":"10 kg","offer_id":56831330582910,"sku":null,"price":15.99,"currency_code":"GBP","in_stock":true},{"title":"25 kg","offer_id":56831330615678,"sku":null,"price":36.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/3477\/2606\/files\/WCM_Website-069.jpg?v=1778599973"},{"product_id":"mixed-seed-grains","title":"Mixed Seed Grains","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eMixed bird seed grain for mushroom grain spawn\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMixed Seed Grains are a premium blend specifically formulated for cultivating mushroom grain spawn. This versatile grain mixture combines multiple seed varieties to create an ideal growing medium that supports robust mycelium colonisation and healthy fruiting body development. Our carefully selected grain blend offers excellent nutrient density, providing the carbohydrates and minerals your mushroom cultures need to thrive. The varied grain composition ensures optimal moisture retention and air circulation within your spawn jars, reducing contamination risk whilst promoting vigorous growth. Perfect for both experienced cultivators and those new to mushroom growing, this grain spawn base works exceptionally well with a wide range of mushroom species. Whether you're cultivating oyster, shiitake, lion's mane, or specialty varieties, these mixed grains provide a reliable foundation for successful colonisation. \u003c\/p\u003e","brand":"westcoastmushrooms","offers":[{"title":"5 kg","offer_id":56831331238270,"sku":null,"price":7.49,"currency_code":"GBP","in_stock":true},{"title":"10 kg","offer_id":56831331271038,"sku":null,"price":13.99,"currency_code":"GBP","in_stock":true},{"title":"25 kg","offer_id":56831331303806,"sku":null,"price":32.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/3477\/2606\/files\/Mixed_Seed_Grain.jpg?v=1786119116"},{"product_id":"soy-hull-pellets","title":"Soy Hull Pellets","description":"\u003cp\u003eSoy hull pellets are an excellent substrate component for cultivating a wide variety of mushroom species. 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Easy to prepare and mix with other substrate materials, they help create the perfect balance of nutrition and structure your mushrooms need to thrive.\u003c\/p\u003e","brand":"westcoastmushrooms","offers":[{"title":"5 kg","offer_id":56831331631486,"sku":null,"price":7.99,"currency_code":"GBP","in_stock":true},{"title":"15 kg","offer_id":56831331664254,"sku":null,"price":13.65,"currency_code":"GBP","in_stock":true},{"title":"150 kg","offer_id":56831331697022,"sku":null,"price":134.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/3477\/2606\/files\/ADP2846.jpg?v=1778616002"},{"product_id":"beech-pellets","title":"Beech Pellets","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eBeech pellets for growing mushrooms\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"westcoastmushrooms","offers":[{"title":"5 kg","offer_id":56831333204350,"sku":null,"price":15.99,"currency_code":"GBP","in_stock":true},{"title":"15 kg","offer_id":56831333237118,"sku":null,"price":26.66,"currency_code":"GBP","in_stock":true},{"title":"150 kg","offer_id":56831333269886,"sku":null,"price":232.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/3477\/2606\/files\/ADP2846.jpg?v=1778616002"},{"product_id":"vermiculite-50-litres","title":"Vermiculite- 50 Litres","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-sheets-root=\"1\"\u003eFine-Medium grade vermiculite for mushroom growing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUnlock the secret to thriving mushroom colonies with our premium fine medium vermiculite! 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Whether you're growing oysters, shiitake, or lion's mane, a sprinkle of gypsum keeps your substrate perfectly balanced—firm enough to support growth, yet breathable enough for optimal colonization. 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