{"product_id":"calcium-carbonate","title":"Calcium Carbonate (Chalk) - 1 oz","description":"\u003cp\u003e\u003cstrong\u003eRaises Mash pH \u0026amp; Alkalinity • For Dark and Roasty Beers\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCalcium carbonate (chalk) raises mash alkalinity and pH, offsetting the acidity of dark roasted malts. It's mainly used in stouts, porters, and other dark beers where the grist would otherwise drive mash pH too low.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAdd to the mash to raise pH in dark, roast-heavy grists.\u003c\/li\u003e\n\u003cli\u003eTypical rate: 1 tsp per 5 gallons; add gradually and measure pH.\u003c\/li\u003e\n\u003cli\u003eBest dissolved in the mash rather than treated water.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eContents: Food-grade calcium carbonate (CaCO3)\u003c\/li\u003e\n\u003cli\u003eNet weight: 1 oz\u003c\/li\u003e\n\u003cli\u003eUse: Water chemistry \/ raise mash pH\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Clawhammer Supply","offers":[{"title":"Default Title","offer_id":46087935590598,"sku":null,"price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6682\/files\/calcium-carbonate-hires2.png?v=1784399248","url":"https:\/\/www.clawhammersupply.com\/products\/calcium-carbonate","provider":"Clawhammer Supply","version":"1.0","type":"link"}