A women-owned cottage bakery in La Mesa, Gemini Twins Bakery produces small-batch sourdough bread and naturally fermented sweets from its Cornell Avenue kitchen. The operation maintains a locally sourced ingredient pipeline for a short farm-to-oven supply chain, a provenance standard also emphasized by the produce-focused Vine Ripe Market in the same La Mesa food corridor. Each loaf begins with a maintained sourdough starter cultivated in-house since 2019, driving a 24- to 48-hour cold fermentation that breaks down gluten proteins and develops complex lactic-acid flavor. The menu rotates weekly through country loaves, sea salt focaccia, sourdough naan, and seasonal cookies, all built on the same wild-yeast base that local whole-grain suppliers like Frazier Farms Market help stock. All orders require 48 hours' advance notice, reflecting the extended bulk-ferment and proof schedule that defines each batch's crumb structure and crust caramelization.