How does Winnow support Net Zero and impact reporting?

Winnow provides auditable data at every level, from a single hall up to group-wide reporting, covering weight, cost and CO₂e avoided. Every disposal is weighed, timestamped and photographed, so figures come from direct measurement rather than estimation.

Is the data measured or estimated?

Measured. Every disposal into the monitored bin is weighed on a connected scale, timestamped and photographed. Reporting standards increasingly require you to state whether figures come from direct measurement or estimation, and Winnow data is direct measurement.

Does Winnow measure plate waste as well as kitchen waste?

Yes. The Vision range measures pre-consumer waste from preparation and overproduction. VisionPW uses a motion sensor camera to measure post-consumer plate waste, which is where student behaviour shows up rather than kitchen decisions.

Can students see the data?

Yes, and it works. LSE Bankside House put weekly Winnow data on screens and posters, designed the visuals with its Behavioural Science Department, and cut plate waste 34% during Food Waste Action Week.

Can Winnow work across halls, retail outlets and events?

Yes. Every site reports into Winnow Hub, so you can benchmark hall against hall and outlet against outlet, and see the whole estate in one place. Product tier is matched to each site's size.

How does Winnow work in a university dining hall?

A camera photographs food as it enters the bin and a connected scale weighs it. Winnow's AI identifies the item and logs its weight, cost and reason, with no action from your team. VisionPW adds plate waste measurement in halls using a motion sensor camera.

Food Waste Data for University Sustainability

Why universities use Winnow for food waste prevention

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Plate waste measurement in halls

VisionPW uses a motion sensor camera to measure what students leave on the plate. Kitchen data tells you what you over-produced; plate waste tells you what students did not want.

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Production guidance through term-time swings

Demand shifts sharply across the academic calendar, from move-in week to exam season, and no spreadsheet survives it. Winnow shows what came back untouched at each service, so production follows real attendance.

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Auditable data for Net Zero reporting

Every disposal is weighed, timestamped and photographed, then exported by site, service and category with cost and CO₂e attached.

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Student-facing waste data

LSE Bankside House put weekly Winnow data on screens and posters, worked with its Behavioural Science Department on the visuals, and cut plate waste 34% during Food Waste Action Week.

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One platform across a mixed estate

Halls, retail outlets, events and contractor-run kitchens report into one Winnow Hub, so you can benchmark site against site.

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What savings look like

Real results from Winnow sites, so you can sanity check the numbers.

Guckenheimer

64%

Reduction in waste weight

$1,000,000

Savings

1,500 Tonnes

Of CO₂e prevented

983,000

Meals saved

University of Northern British Columbia

* savings data from Jan - Nov 2024, compared to baseline

44%*

Reduction in waste weight

$9,000

Annualized savings

36.8 Tonnes

Of CO₂e prevented annually

21,000

Meals saved annually

Mandarin Oriental, Hong Kong

73%

Reduction in waste weight

HK$375,000

Annualized savings

36 Tonnes

Of CO₂e prevented annually

21,000

Meals saved annually

The Winnow system is very user-friendly. For me, working in sustainability, I always look into the reports and numbers. Those reports are so beneficial for my audits and help me create impact reports.

Susan Francis

Environmental-Food Safety-Sustainability Manager | Centara Mirage Beach Resorts Dubai

We’ve optimised portion control and quantity at the buffet station, making the food in smaller batches and refilling it more often. The food then arrives fresher and hotter to our guests which helps a lot with maintaining our high guest satisfactions scores.

Silke Astillero

Hygiene & Sustainability Manager | Hilton Clark Sun Valley Resort

In hospitality, we have a unique opportunity to be change agents in sustainability. Food waste is one of the most visible and solvable challenges—and tracking it is the first step toward meaningful action.

Ruby O.,

Assistant Vice President of Sustainability & Business Synergy | MGM China

Turn food waste into measurable savings

Winnow measures what your kitchens on campus throw away and forecasts what they should produce. Your teams get a report they can act on before the next service.

2 to 8%

Cut in food costs per site

6 to 12 months

Typical payback

50%

Less food waste in year one

3,500+

Locations already live

Campus kitchens can cut waste by more than half in year one, saving thousands per kitchen.

Measured, not estimated. Every disposal weighed, timestamped and photographed.
No extra work for staff. Throw & Go records waste with nothing to scan or select.
Plate waste, not just kitchen waste. VisionPW measures what students leave behind.
Live in about 15 minutes. No technician, no IT project.

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Fill this in and a campus waste expert will get in touch to set up a demo.

AI-powered food waste prevention for university dining

Running in 3,500+ kitchens across 90+ countries, on campus and beyond.

Benefits for sustainability leads

Report on direct measurement, not estimates: every disposal is weighed, timestamped, and photographed for Net Zero reporting.

See the student behaviour half of the picture that kitchen data alone misses, with VisionPW measuring plate waste in halls.

Show students the data. LSE Bankside House used weekly Winnow data in a campus campaign and cut plate waste 34%.