Most coffee at home is drunk three weeks past peak. The bag in your kitchen
right now probably is too.
Day 9 fixes that.
THE PROBLEM
Specialty coffee peaks 7 to 14 days after roast. Beans roasted today won't
taste their best until they've had time to degas, and they'll start declining
in flavor about two weeks later. Most coffee drinkers buy a bag, drink it
casually over a month, and never taste it at its best.
THE SOLUTION
When you bring home a new bag, scan or enter the roast date. Day 9 sends
three notifications:
- Day 7 — Your coffee's peak window opens
- Day 9 — The sweet spot (and the name)
- Day 14 — Time to plan your next bag
That's it. No accounts required. No subscription. Just freshness alerts that
help you taste your coffee at its best.
FEATURES
- Bag tracking with roast date entry
- Three-stage freshness alerts (Day 7, 9, 14)
- Storage condition tracking (airtight, light exposure)
- Roaster directory with hundreds of specialty roasters
- One-tap reorder links to partner roasters (Coffee Bros, Seven Coffee
Roasters)
- Works offline — your bag data lives on your device
- No account required to get started
FOR WHO
This app is for anyone who buys good coffee and wants to actually taste it
at its best. Especially:
- Home brewers (drip, pour-over, espresso, French press)
- Subscription coffee drinkers tracking multiple bags
- Specialty coffee enthusiasts exploring new roasters
- Anyone who has thrown out stale coffee and wondered when it actually
went bad
PRIVACY
Your bag data stays on your device. The only personal information we
collect is your email address — and only if you want freshness alerts.
You can use day9 entirely without an account.
ABOUT
Day 9 is built by an independent developer who got tired of drinking past-
peak coffee. The roaster directory is curated and grows weekly. If your
favorite roaster isn't listed, let us know at hello@day9.coffee.
Available on iPhone and now Android.
Questions or feedback? Reach out at hello@day9.coffee