Natural Calcium Carbonate (CaCO₃)
Mesh #16 Sifted (Agricultural Grade)

Pure Mineral Buffering. Zero Chemical Processing.

Stop risking your cultures with industrial chemical chalk or coarse, unrefined builder’s lime. This natural, agricultural-grade Calcium Carbonate is mechanically sifted through a precise Mesh #16 screen at the STS. It is the essential, slow-release pH buffer used to stabilize mushroom bulk substrates (CVG mixes), spawn supplement to aid rheology or to balance acidic vermiculture bedding.

Technical Specifications & Field Benefits

• Mesh #16 Precision Sifting: Mechanically refined to a uniform particulate size. It is fine enough to distribute evenly through a substrate or bedding mix without clumping, yet coarse enough to provide a sustained, long-term pH buffer rather than an instant, shocking chemical spike.

• 100% Natural Origin: Unrefined and non-precipitated. Contains the natural trace mineral complexities that soil microbiology and mycelium thrive on, completely free of chemical anti-caking agents or manufacturing residues.

• The Ultimate Fungi pH Shield: Essential for blending your own CVG (Coco, Vermiculite, Gypsum) bulk substrates, or Spawn. It safely buffers acidity, creating an optimal environmental baseline that favors aggressive rhizomorphic mycelium while aggressively suppressing green mold (Trichoderma) add at 1-2% of dry substrate/grain mass.

• Monera Bedding Stabilizer: Perfect for neutralizing local pockets of high acidity in your worm bin caused by overfeeding dense kitchen scraps or fruit wastes, keeping your worm population safe from “sour crop” or protein poisoning.

• Agar Media: add a pinch to your agar media mix when preparing, to prevent low pH conditions, Agar Agar does not set in low pH conditions.

500 gram Packaged in Stand-up Pouch.