Hey Product Hunt 👋 I ferment cider and seltzer at home, and I kept doing the same tedious thing every time: find a recipe online → manually scale it to my batch → convert the units → write out a shopping list. Over and over. So I built Fermentory to do it for me. It detects a recipe on any page, scales it to whatever batch size you want, converts the units, and builds the shopping list — without copying anything into a separate app. A few things I cared about: - It runs entirely in your browser — no account, no sign-up, and it collects zero data. I didn't want to make another creepy extension. - It's free. There's an optional one-time $5 Pro (no subscription) for the deeper stuff — brewing calculators, BeerXML export, a brew journal, ingredient inventory — but the free version does the core job. It's still early, so I'd genuinely love your feedback — what's missing, what's clunky, what you'd want next. Thanks for checking it out! 🍻

Fermentory

Detect, scale & shop any homebrew recipe — free

Detect, scale & shop any homebrew recipe — free