Real-Time Water Quality Monitoring for Espresso Machines & Cafés
Same TDSBot hardware, same $59 starting price as every other industry — what changes for coffee is the chemistry, the failure mode and the ROI math. SCA brew-water zone, LSI and Larson-Skold at brew temperature, filter exhaustion 40+ days out.
Taste, machine, operations. Each one fails quietly, and none of them are visible without a sensor on the line.
Problem 01 — taste
Flat shots with no brightness
Alkalinity above 75 mg/L neutralises coffee acids. LA water at 120 mg/L is a 60% overshoot of the SCA target — in every shot.
What TDSBot does: Monitors TDS vs onboarded baseline. Alerts you to re-test when source water shifts — before your guests notice.
Solution
Re-test alert when TDS drifts — catch source water changes before they hit the shot
Problem 02 — machine
Scale and pitting you can't see
LSI above +0.5 scales your boiler. LS above 1.2 pits the steel. LA water does both. Every 1mm of scale costs ~8% efficiency.
What TDSBot does: Tracks cumulative CaCO₃ load and calculates data-driven descale intervals for your machine and throughput. LSI + Larson-Skold at 15°C, 93°C and 130°C.
847g
Cumulative CaCO₃ load this machine YTD
62d
Data-driven descale interval (vs 90d default)
Solution
Cumulative hardness load tracking → descale when the machine needs it, not when the calendar says
Problem 03 — operations
Replacing filters on a calendar, not on data
Time-based schedules replace cartridges too early at some sites, too late at others. Neither failure is visible without a sensor.
What TDSBot does: Volume flow × TDS drift × manufacturer baseline = days remaining with P10/P90 bands. Fleet average: +22% filter life.
Solution
40+ days advance notice — pre-order cartridges, schedule service, never run dry
Your city's water for coffee
Start with knowing what's coming out of your tap
Published TDS and alkalinity for your city, checked against the SCA brew-water target — TDS 75–250 ppm, alkalinity 40–75 mg/L — before a sensor is even installed.
Type a city to see its TDS and alkalinity
Target zone from the Specialty Coffee Association's published Water Quality Handbook. WaterTDS is an independent company, not affiliated with, endorsed by, or sponsored by the SCA.
CityTDSAlkalinitySCA
Los Angeles167 ppm120 mg/Lout
Tokyo42 ppm18 mg/Lout
Chicago145 ppm68 mg/Lin range
London250 ppm175 mg/Lout
Singapore78 ppm52 mg/Lin range
Berlin330 ppm195 mg/Lout
Multi-site coffee chains
50 locations. One view. Every filter.
The SCA Water Quality Handbook defines the target range for specialty coffee: TDS 75–250 ppm, alkalinity 40–75 mg/L, hardness 17–85 mg/L. La Marzocco's published boiler specification adds an LSI target of +0.2 to +0.7.
TDSBot applies both standards continuously to your inline sensor data — not from a quarterly lab test, but every minute, at brew temperature, at every machine.
The standards are public. The continuous inline application across a live fleet is what the coffee feature set adds.
Coffee fleet · 5 sites · Japan● Live
SiteTDSSCALSILS%range
Aoyama · Bar 1142✓+0.420.6894%
Kiyosumi · Bar 1138✓+0.380.6197%
Shinjuku · Bar 1 ⚠158!+0.711.2871%
Shibuya · Bar 1145✓+0.450.7291%
Harajuku · Bar 1141✓+0.400.6496%
Fleet avg · this month90%
Per-site TDS in one dashboard
Filter depletion timeline per site — pre-order cartridges before they run out
Buy the sensor once. Your monitoring plan is chosen in the app after the hardware arrives — and the first 3 months on the full coffee feature set are free from the day you install.
The filter-savings numbers below are pre-filled from a real 14-site deployment. Repair and wasted-product costs vary too much shop to shop for us to guess on your behalf — those start blank. Add your own numbers to see a real estimate, not an average.
Your fleet
Filter savingscalibrated
Repair avoidanceyour numbers
Wasted productyour numbers
Filter savings / year$1,512
Repair avoidance / year$0 — add your numbers above
Wasted product avoidance / year$0 — add your numbers above
Monitoring subscription / year (14 devices)$1,176
Net saving in year 1$336
Filter-savings defaults calibrated from Rafael Morales (Plato Coffee, LA) — 14 sites, 18% cartridge spend reduction in year one. Repair and wasted-product figures are illustrative until you enter your own — ask your service provider for a real repair-cost quote, since commercial multi-group repairs can run well above typical prosumer figures ($150–400) and in severe cases approach replacement cost.
Shared with permission.
Installation & workflow
From box to live data in under 20 minutes
Inline between the filter outlet and the machine inlet. One wrench, quick-connect fittings, no plumber for most installs.
1
Install inline — between filter and machine
Fits between your filter outlet and espresso machine inlet. Compatible with 1/4″, 3/8″, and some 1/2″ water lines using quick-connect fittings. The sensor enclosure is splash-resistant — do not submerge. One wrench, 10–15 minutes. A service professional is recommended if you are not comfortable with water line connections.
2
Onboard your water chemistry
Enter your lab test or utility CCR values. TDSBot stores these as your baseline for SCA inference and drift alert thresholds.
3
TDSBot measures every minute
Parameters measured every minute. Reports hourly or daily. LSI and Larson-Skold live at three temperatures. Depletion model updates continuously.
4
Alerts before problems, not after
Email alerts — hourly or midnight digest. Filter depletion alert configurable (default 30 days advance). TDS drift alert when source chemistry shifts. WhatsApp alerts coming soon.
Fleet dashboard · 6 sitesDay 1 view
Aoyama · Bar 1142 ppm ✓
Kiyosumi · Bar 1138 ppm ✓
Shinjuku · Bar 1158 ppm ⚠
Shibuya · Bar 1145 ppm ✓
⚠ Shinjuku TDS +16 ppm above baseline — source water may have shifted. Re-test water chemistry recommended.
Fleet avg · this month90% in range
5
Re-test water chemistry when alerted
TDS drift alert = signal to bench-test your water. Update the baseline. TDSBot recalibrates. Sensors give the signal; lab tests give the chemistry.
SCA water parameters
What we actually do vs what no sensor can do
No inline sensor measures alkalinity or hardness directly. Here is exactly what TDSBot does — and doesn't do.
Measures TDS continuously
Live TDS every minute. Directly relevant to the SCA 75–250 ppm range. Tells you your total dissolved mineral load in real time.
Can do · inline measurement
Infers SCA alkalinity / hardness status
Uses onboarded lab chemistry ratios (TDS:hardness:alkalinity) to infer whether your water profile is likely still within SCA range. Not a measurement — an inference from known baseline.
Inference from baseline
Alerts when source water shifts
TDS drift triggers a re-test alert. Seasonal source blend changes are caught — even without direct alkalinity measurement.
Can do · TDS drift detection
Reports % of time water was within your target range
Set your TDS target range. TDSBot reports % of operating time each machine was within spec — per machine, per month.
Can do · continuous compliance tracking
Directly measures alkalinity or hardness
No inline sensor can. Lab testing required. TDSBot tells you when to test — it doesn't replace it.
Cannot do · lab test required
What coffee operators say
From baristas who actually use it
“Our BWT Bestmax output was drifting for three weeks before a barista noticed the shots tasting flat. TDSBot now tells us 41 days before the cartridge exhausts. We haven't had a surprise filter failure since.”
KBKaito BandoHead of Coffee · Saza Coffee · Tokyo, Japan
“The Larson-Skold data was revelatory. We thought our boiler pitting was a machine defect. It was the water — chloride and sulphate were attacking the steel even while the LSI said we were scale-forming. Two separate problems, one sensor showing both.”
ACAlessia ConteCoffee Equipment Manager · Grand Hyatt Tokyo
“Across 14 LA locations we were replacing Everpure cartridges on a 6-month schedule. TDSBot showed us that two high-volume sites needed a change at 4 months, and three low-volume sites could go to 9. Cartridge spend down 18% in year one.”
RMRafael MoralesOperations Director · Plato Coffee · Los Angeles, United States of America
“Our BWT Bestmax output was drifting for three weeks before a barista noticed the shots tasting flat. TDSBot now tells us 41 days before the cartridge exhausts. We haven't had a surprise filter failure since.”
KBKaito BandoHead of Coffee · Saza Coffee · Tokyo, Japan
“The Larson-Skold data was revelatory. We thought our boiler pitting was a machine defect. It was the water — chloride and sulphate were attacking the steel even while the LSI said we were scale-forming. Two separate problems, one sensor showing both.”
ACAlessia ConteCoffee Equipment Manager · Grand Hyatt Tokyo
“Across 14 LA locations we were replacing Everpure cartridges on a 6-month schedule. TDSBot showed us that two high-volume sites needed a change at 4 months, and three low-volume sites could go to 9. Cartridge spend down 18% in year one.”
RMRafael MoralesOperations Director · Plato Coffee · Los Angeles, United States of America
Questions from baristas
Before you install, the honest answers
Not directly — no inline sensor can measure alkalinity or hardness in real time. TDSBot uses your onboarded inlet water chemistry (from a lab test or utility report) to infer whether parameters are likely still in SCA range, and alerts you to re-test when TDS shifts significantly. This is the correct real-world approach — sensors give the signal, lab tests confirm the chemistry.
For most BWT Bestmax and Everpure cartridges in a standard café flow profile, TDSBot provides 30–50 days of advance notice with P10/P90 confidence bands. The model combines cumulative volume flow with TDS drift against the manufacturer's capacity baseline. High-volume sites get earlier warnings; low-volume sites get narrower confidence bands.
Yes — TDSBot is filter-agnostic. It installs inline between any filter outlet and your espresso machine inlet. You onboard the manufacturer's rated capacity and flow parameters at setup. It works with BWT Bestmax, Everpure MRS-600S, Pentair systems, and any other inline filter with a 1/4″, 3/8″, or 1/2″ outlet using the included quick-connect fittings.
Yes. Every plan includes the multi-site fleet dashboard with a corporate → site hierarchy; Coffee Pro adds the SCA / LSI / LS view on top of it. Your ops team sees all 30 locations and their filter status in one view. Site managers see only their own machines. Alerts can be configured globally or per-site. There's no per-location fee beyond the per-device monthly rate.
A handheld meter is a snapshot — you measure when you remember to, and you notice the problem after it's happened. TDSBot measures continuously, every minute, and alerts you before the problem manifests. The filter depletion model, corrosion indices, SCA inference, and fleet dashboard are all impossible with a handheld meter. The value is in the trend and the prediction, not the single reading.
Most installations take 10–15 minutes with a wrench — no plumber required. TDSBot uses quick-connect fittings compatible with 1/4″, 3/8″, and some 1/2″ water lines, fitting inline between your filter outlet and espresso machine inlet. The device pairs over Bluetooth to set up the WiFi connection, then runs independently on your network. A full installation guide is included. If you are not comfortable working with water line connections, we recommend having a service professional carry out the installation.
Know what's in your water before your espresso does
TDSBot installs in 15 minutes and starts sending data immediately. The first 3 months on the full coffee feature set are free from installation day.
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WaterTDS Inc
Inline IoT water quality monitoring for coffee, food service, water treatment, facilities and home filtration.
Disclaimers: TDSBot measures TDS, conductivity, temperature and flow rate directly. LSI, Larson-Skold Index, hardness and alkalinity estimates are derived from onboarded utility water chemistry data — not directly measured inline. TDSBot does not measure PFAS, bacteria, or other biological or chemical contaminants; for RO systems, reject ratio is used as a proxy indicator of membrane performance only. TDSBot monitoring data is not a substitute for accredited laboratory testing or statutory water quality compliance testing. All third-party brand names are trademarks of their respective owners; WaterTDS Inc. claims no affiliation, endorsement or partnership unless separately announced.
