Mangowolke 1 - Dry (mango extract)

Mango-forward fruited sour, DRY (no lactose). Souring: pitch WildBrew Philly Sour - it sours AND ferments in one vessel, target pH ~3.4. Alternative: kettle-sour wort to pH 3.4, then pitch a clean neutral ale yeast (US-05 / Lutra). Hops are whirlpool + dry hop only (near-zero bittering). Mango extract added post-fermentation, start ~0.3 mL/L and bench-trial up. Stays vegan + allergen-free. Shared 10% oat grist so it can be split from one combined brew with options 2 and 3.