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Show HN: Flour Hour – I built a bread baking app with Claude Code in 3 hours

yanina_trekhleb Thursday, January 15, 2026

I built this to solve my own problem — sourdough takes ~20 hours from start to finish, and I was tired of setting a dozen alarms and constantly checking "what's next?" Flour Hour lets you pick a recipe, set your start time (or work backwards from when you want to eat), and it calculates every step with exact timestamps. Includes 22 recipes: classic sourdough, same-day sourdough, focaccia, bagels, croissants, brioche, discard pancakes, and more. Each with ingredients. Tech: React + Vite, deployed on GitHub Pages. The interesting part — I built it entirely by talking to Claude Code. Described what I wanted like a client, and it wrote all the code. Took about 3 hours of conversation (not counting rate limits). GitHub: https://github.com/YaninaTrekhleb/flour-hour Happy to answer questions about the build process or the app itself.

Summary
The article explores the history and science behind flour, discussing its origins, production, and the different types available. It provides insights into the role of flour in various cuisines and the factors that influence its quality and performance in baking.
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