ZenDim Coffee Labs | Find Your Better Shot

Explore your grindOne photo. One reference card.

Let’s look at your grind.

Start with one clear photo of your
coffee grounds and a reference card.

JPG, PNG, WebP · Up to 15 MB

Analyzed on your device · Saved privately only if you choose

BEFORE YOU SHOOT

Set up a great photo.

01
A small pinch on white paper
Spread the grounds in a thin layer. Some touching is okay; avoid thick piles that hide particle edges.
02
Place a card beside it
Use a standard credit card (85.6 × 53.98 mm), horizontal or vertical, on the same flat surface. Cover names and numbers.
03
Get close. Keep it sharp.
Fill the frame with the card and a small sample. Shoot from directly above in even light. If close-up detail stays blurry, move back slightly or enable macro if supported. Automatic macro switching varies by phone. Upload the original photo.

COMPARE YOUR SAMPLE

Compare the current analysis with a distribution that excludes likely clumps and uncertain shapes. See exactly which regions were left out.

Tiny grains below the photo’s detection cutoff and boundaries hidden inside clumps cannot be measured reliably. Compare photos taken with the same scale and lighting.

Device journal

About your saved data

Your journal stays on this device. Only shots you choose to share are uploaded to Community. Export a backup before clearing browser data or changing devices.

Opening your device journal…

Your shot

In the cup

Weigh the espresso after the shot.

Yield (g) optional

WEIGHT & TIME

Results

Time guide

Save a shot with first-drop time and cup weight to compare its curve here next time.

Using time only. Add the final cup weight above and first-drop time in the timer to draw an estimated curve.

Adjust recipe window 25–35 s · 1:2

From (sec)To (sec)Ratio · 1:

Start with 25–35 seconds from pump start and a 1:2 ratio, then adapt to your coffee, pre-infusion, machine and taste. The ±10% weight band is an app guide, not a scientific extraction limit. Targets, flow shape and estimated curve are saved with your shot.

Why time alone cannot judge extraction ↗

Coffee TDS (%) Optional · from your refractometer

Extraction yield—Calculated from your measurements

Add a TDS reading to calculate extraction.

How to use TDS

Enter your coffee refractometer’s TDS %, such as 9.5 for 9.5%. Brix and water-meter ppm readings are different measurements.

Measure the same espresso as your recorded cup weight, before adding water or milk. Stir, then follow your meter’s calibration, cooling and filtering instructions.

Extraction yield is the dissolved coffee recovered in your cup as a percentage of the dry dose. It is an average, not a taste score or a check for even extraction.

Calculation reference · Measurement guidance

Dose and total time are required.

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MAKE THE NEXT MOMENT YOURS

Your favorite coffee. A new favorite place.

Find your coffee companion

A better shot starts here.

Let’s look at your grind.

Your shot

In the cup

Results

Life with ZenDim.

Your favorite coffee. A new favorite place.