Every new bag, the first few shots go down the sink while you find the grind. The 9 Bar Society helps you waste fewer of them. Time your pull, log the grind, save the dial-in when the shot is right. Buy that bag again three months later and your last dial-in is already there.

• Scan a new bag, save it to your shelf.
• Built-in shot timer for machines without one.
• Log grind setting and shot time when something changes. Save the dial-in when the shot is right.
• See your full history per bag and per grinder.
• Track when your grinder needs a clean.
• The app changes colour with your roast. Light tan for a city roast, deep brown for an Italian. A small thing. Pleasant.
• Export your data any time, it's yours.

• No accounts to fuss with. Sign in with a code.
• No streaks, badges, levels, leaderboards.
• No social feed, no follows, no comments.
• No ads. No tracking beyond what the app needs to run.

As more home baristas log their dial-ins per grinder and per bag, those settings can be shared. Same grinder, same beans — the next person starts from a working baseline instead of binning the first three shots.

Coffee is hard work; farmer, picker, roaster, importer. Supply is tightening, climate isn't helping, and the years ahead won't get easier. Every kilo lost to dial-in is a small disrespect to that whole chain. The best we can do is make the best of what we have.

Sharing will be opt-in, anonymous, aggregated. Your settings stay yours.

By a home barista who got tired of binning beans. Every bag is someone's hard work. Respect it.