{"product_id":"substrate-supplement-pro-vaso-1-l","title":"Substrate Supplement PRO — 1 L Jar","description":"\u003ch2\u003eSubstrate Supplement PRO — nitrogen and mineral supplement for sterilized wood substrates\u003c\/h2\u003e\n\u003cp\u003ePowdered supplement for fruiting substrates based on hardwood sawdust, hardwood fuel pellets and wood chips intended for sterilization. It corrects the two structural limits of plain sawdust: a very high carbon-to-nitrogen ratio (too little nitrogen for a heavy fruiting block) and the absence of minerals and pH buffer. Formulated for wood-loving species: Hericium erinaceus (lion’s mane), Pleurotus ostreatus (oyster), Pleurotus eryngii (king oyster), Lentinula edodes (shiitake) and other lignicolous gourmet mushrooms. 1 L jar, handmade in Italy in small batches.\u003c\/p\u003e\n\u003ch3\u003eComposition\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eWheat bran\u003c\/li\u003e\u003cli\u003eRice bran\u003c\/li\u003e\u003cli\u003eSoy hulls\u003c\/li\u003e\u003cli\u003eCalcium sulfate dihydrate (gypsum, CaSO4·2H2O)\u003c\/li\u003e\u003cli\u003eCalcium carbonate (CaCO3)\u003c\/li\u003e\u003cli\u003eKelp, Ascophyllum nodosum (brown seaweed), dried and milled\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eNo synthetic fertilizers, no fungicides, no fillers.\u003c\/p\u003e\n\u003ch3\u003eWhat each ingredient does\u003c\/h3\u003e\n\u003cp\u003eWheat bran. The primary nitrogen source. Rich in protein (organic nitrogen), residual starch, hemicellulose fibre, phosphorus and B-group vitamins. It is the reference supplement in sawdust cultivation because mycelium degrades it quickly and converts it to biomass during the first weeks of colonization: this is what drives the weight of the first flush.\u003c\/p\u003e\n\u003cp\u003eRice bran. Complementary profile to wheat bran: higher in lipids, which the mycelium uses as a high-density energy source, and with a protein fraction that releases more gradually. Combining the two brans spreads nitrogen availability across the whole colonization instead of concentrating it in the first days.\u003c\/p\u003e\n\u003cp\u003eSoy hulls. Structural fibre (cellulose, hemicellulose, pectins) with a significant protein fraction. They are the basis of the Master’s Mix (sawdust and soy hulls 50\/50) and work on two fronts here: slow-release nitrogen and porosity. Hull particles keep the block aerated and raise water retention without compacting.\u003c\/p\u003e\n\u003cp\u003eGypsum (calcium sulfate). Controls the physical structure of wood substrates: it stops fine sawdust from packing into an anaerobic mass, keeps the channels for gas exchange open and improves water distribution through the block. Supplies calcium and sulfur.\u003c\/p\u003e\n\u003cp\u003eCalcium carbonate. pH buffer. Fermenting brans and the metabolism of the mycelium both acidify the substrate; calcium carbonate brings it back toward neutral and holds it stable for the whole run, from colonization to fruiting.\u003c\/p\u003e\n\u003cp\u003eKelp (Ascophyllum nodosum). Brown seaweed. Brings a broad spectrum of trace elements (iodine, potassium, magnesium, iron, zinc, manganese), alginates, mannitol, betaines and natural plant growth regulators. It covers the micronutrients a substrate made only of wood and bran does not contain.\u003c\/p\u003e\n\u003ch3\u003eProtocol\u003c\/h3\u003e\n\u003col\u003e\u003cli\u003eWeigh the dry substrate (hardwood sawdust or hardwood pellets).\u003c\/li\u003e\u003cli\u003eDose: 10–20% by weight of the dry substrate. Use 10% for aggressive, fast species such as Pleurotus and for lower-risk runs; 15–20% for Hericium, Lentinula and whenever you are pushing first-flush yield. Higher rates mean more yield and a more selective substrate, so full sterilization becomes mandatory.\u003c\/li\u003e\u003cli\u003eMix dry until homogeneous, before adding any water. Dry mixing gives an even distribution that wet mixing does not reach.\u003c\/li\u003e\u003cli\u003eHydrate to 60–65% moisture (field capacity: a handful squeezed hard releases only a few drops).\u003c\/li\u003e\u003cli\u003eFill autoclavable filter bags and sterilize at 15 psi (121 °C) for 2.5 hours. The nutrient load of the supplement requires full sterilization: it is not suitable for pasteurized substrates such as straw or straw pellets treated at 65–80 °C.\u003c\/li\u003e\u003cli\u003eCool completely, then inoculate with grain spawn.\u003c\/li\u003e\u003c\/ol\u003e\n\u003ch3\u003eYield\u003c\/h3\u003e\n\u003cp\u003eOne 1 L jar is enough for about 2 to 5 blocks, depending on the rate you choose and the size of the block. Handmade in Italy in small batches.\u003c\/p\u003e\n\u003ch3\u003eStorage and warnings\u003c\/h3\u003e\n\u003cp\u003eKeep the jar tightly closed, cool and dry. For mycological use only. Not for human or animal consumption. Keep out of reach of children.\u003c\/p\u003e","brand":"Fungaia","offers":[{"title":"Default Title","offer_id":59794396348741,"sku":"FUNGAIA-SUB-SUPPLEMENT-PRO","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1037\/2707\/1557\/files\/il_fullxfull.8694609378_1g8m.jpg?v=1792253924","url":"https:\/\/fungaia-2.myshopify.com\/products\/substrate-supplement-pro-vaso-1-l","provider":"Fungaia","version":"1.0","type":"link"}