Gypsum Mycology 100g Calcium Sulfate Mushroom Substrate Amendment Grain Spawn pH Buffer Professional
50 g
$9.00 USD
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Gypsum Mycology 100g Calcium Sulfate Mushroom Substrate Amendment Grain Spawn pH Buffer Professional
Gypsum Mycology 100g Calcium Sulfate Mushroom Substrate Amendment Grain Spawn pH Buffer Professional
$9.00 USD
Taxes included.
Shipping calculated at checkout.
π Pure gypsum (calcium sulfate) ultra-fine grind β the professional substrate amendment that prevents grain clumping, buffers pH, and accelerates mycelial colonization in your grows.
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WHAT'S INSIDE
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β’ 100 g pure technical-grade gypsum (CaSOβ) for mycology
β’ Ultra-fine grind for rapid, even dissolution
β’ Resealable airtight pouch that preserves quality
β’ Artisan product packaged in Italy
β’ Optimal solubility β no gritty residue
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π¬ WHY GYPSUM IS ESSENTIAL IN SUBSTRATES
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Gypsum supplies bioavailable calcium and sulfur while acting as a natural pH buffer, maintaining the optimal environment for mycelial development. Its most important mechanical function: it prevents grain kernels (rye, millet, sorghum) from clumping inside jars, making shaking easy and thorough. The result? Faster colonization thanks to increased surface-area contact between mycelium and substrate. Also essential in bulk substrates (CVG, straw, compost) to stabilize pH and reduce bacterial contamination.
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π HOW TO USE
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1. Add gypsum during your grain soak or mix it directly into bulk substrate before pasteurization.
2. Recommended dosage: 2β5% of total dry weight (e.g. 20β50 g per kg of dry grain; 10β20 g per kg of bulk substrate).
3. Sterilize as usual in an autoclave or pressure cooker (15 PSI, 90 minutes for grain spawn; 60β90 minutes for bulk).
4. Store leftover powder in a cool, dry place away from moisture.
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π WHY CHOOSE US
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β’ Technical-grade gypsum selected specifically for mycology
β’ Fine grind that dissolves quickly without clumping
β’ Airtight packaging for maximum shelf life
β’ Fast shipping from Italy with discreet, secure packaging
β’ Technical support available for any questions on dosage and compatibility
Questions about dosage or compatibility with your substrate? Message us before ordering β we're here to help! π