SOURCING & PROCESS
At Forest Flush Mushrooms, we believe true transparency is the foundation of quality. From the substrate to the final extract, we control every step of our production to deliver maximum bioavailability and potency.

We use 100% pure mushroom fruiting bodies across our entire product line to guarantee a high concentration of active beta-glucans without cheap fillers or residual starches.
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The Chaga Exception: Because chaga grows uniquely in the wild as a nutrient-dense sclerotium (sterile conk), our chaga is sustainably wild-harvested in its natural, highly potent form.
Our cultivation process prioritizes natural development. We start our pure mycelium cultures on grain spawn in a sterile environment to ensure rapid, healthy initial growth.
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Once strong, the culture is transferred to its primary fruiting medium: 100% natural, food-safe, supplemented hardwood sawdust.
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No Starch Fillers: Unlike brands that grind up cheap grain blocks and sell you residual starch, our mushrooms completely consume their natural wood substrate to produce pure fruiting bodies.
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Natural Lifecycle: Our sawdust medium mimics the exact natural wood nutrients these mushrooms eat in the wild.
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Maximum Purity: This careful transition ensures that your final product contains only pure mushroom compounds, completely free of residual grain weight or grain binders.


To unlock the full therapeutic potential of our mushrooms, we utilize a precise dual-extraction method designed to maximize concentration and prevent dilution:
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Step 1: 30-day Alcohol Maceration (80-Proof): We begin by steeping our dehydrated fruiting bodies in 80-proof alcohol for a minimum of 30 days. This extended, slow-steep period naturally draws out the alcohol-soluble adaptogenic triterpenoids, antioxidants, and sterols without using destructive industrial heat.
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Step 2: Hot Water Extraction: We then press the liquid out, take those exact same nutrient-dense mushrooms, and submerge them in a prolonged hot water extraction to isolate the water-soluble, immunomodulating beta-glucans and functional polysaccharides.
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Why We Formulate with 80-Proof Alcohol: Many brands use high-proof alcohol like 151-proof for their initial step. However, to bring a 151-proof extract down to a safe, industry-standard 30% ABV bottle concentration, you are forced to flood the formula with an excessive volume of water. This requires using the same amount of mushrooms to create a much larger, highly diluted water extract. By utilizing 80-proof alcohol from the start, we avoid over-diluting our liquid. The result is a significantly more concentrated, full-spectrum final product with an uncompromised ratio of active compounds.