Grade a rice sample from a photo.
The rice.ag Grain Scanner finds and measures every kernel in a photo: head rice vs. broken, grain length and shape, colour consistency, and objects worth a second look. Built by rice millers, for anyone who buys, sells, mills or studies rice.
Results in seconds. Follows ISO 7301 / Codex length definitions. How it works
Scanner output on a demo image
What it measures
Head rice & broken %
Each kernel is measured against the sample's average whole-kernel length and sorted into whole, head, large, medium and small broken, and chips — by count and estimated weight.
Grain size & shape
Put a coin in the photo and get length and width in millimetres, length/width ratio, spread, and IRRI length and shape classes — handy for checking you received the variety you paid for.
Colour & suspects
Colour consistency across the sample, plus flags on dark, yellowed or red kernels, husk slivers and round objects — boxed on the photo so a person can check them.
beta Chalkiness is measured when grains are photographed on a lightbox. How to set it up
Three steps, about two minutes
1. Spread
Scatter about a level teaspoon of rice (200–300 grains) on matte black card so no grains touch.
2. Add a coin
Lay a coin flat beside the grains — a Thai 10-baht coin is 26 mm — so lengths come out in millimetres.
3. Shoot & scan
Photograph straight down in even light, then open it in the scanner. Your photo is analysed on your device.
What a photo can't tell you
We'd rather you trust the numbers we do give. A camera sees shape and colour, so:
- Moisture needs a moisture meter or oven test. Use our moisture & drying calculator to sanity-check meter readings against drying records.
- Rice-coloured stones can look identical to grains. Destoners exist for a reason; the scanner flags obvious suspects only.
- Certificates: results are quick-check estimates, not a substitute for laboratory grading or official inspection.
Learn
Broken rice grading, explained
Whole, head rice, brokens and chips under ISO 7301 and Codex — and why the percentage is by weight.
Read →Chainat 1: Thailand's noodle rice
Where the variety came from, what makes it suit noodles, and why unmixed supply matters.
Read →Moisture & drying shrink
The dry-matter formula, worked examples, and how to catch a moisture meter that reads low.
Read →Built by Wildfield
rice.ag is an open project by Wildfield Regenerative Products (Wild Field Foods Co., Ltd.). We work with partner farmers in Fang, Chiang Mai to grow, dry and mill rice — including 100% single-variety, unmixed Chainat-1 for noodle makers, traceable lot by lot from field to bag.
We built the scanner because quick, consistent checks matter in our own mill, and we think they should be free for everyone in the rice trade.
Source rice from Wildfield →