Test one change to prevent avoidable food waste

Harborlight Hotel is a fictional example. Its kitchen team is testing whether a smaller first prep batch can reduce unused prepared vegetables without changing the service plan. Choose one waste source, compare the same measure before and after, and use the result to decide what to try next.

An empty commercial kitchen with stainless steel work surfaces; illustrative stock photography, not Harborlight Hotel.

Run the experiment in four stages

Keep the measure and comparison simple enough to repeat across shifts.

  1. 1

    Choose one waste source

    Name a specific avoidable stream, such as prepared vegetables left unused after service. Keep it separate from other waste so the result has a clear meaning.

  2. 2

    Record a baseline

    For five comparable shifts, record the amount discarded, its unit, and the number of covers. Use the same measurement method each time.

  3. 3

    Trial one change

    Agree on one change with the kitchen and purchasing colleagues involved. In this example, the team prepares a smaller first batch and records any follow-up batch separately.

  4. 4

    Review and choose

    Compare the same measure over the trial shifts. Adapt, repeat, or stop based on the result and the context recorded; do not treat a change in the number alone as proof of cause.

Unused prepared vegetables per 100 covers

Illustrative authored sample values only—not live analytics or a promised result. Source: fictional Harborlight Hotel shift log; as of 14 May 2026. Each period covers five comparable dinner shifts.

3.2 kg

Before: 16.0 kg across 500 covers

2.4 kg

After: 12.0 kg across 500 covers

−0.8 kg

Difference per 100 covers

Record enough context to interpret the result

Use the same fields for the baseline and trial periods.

Observation record

For each shift, capture the waste source, measured amount and unit, covers served, date or shift, and any difference that could affect the comparison.

  • Write the source as “prepared vegetables left unused,” not just “kitchen waste.”
  • Record kilograms and covers for the same shift.
  • Note a menu or service-setting change when it occurs.

Trial record

Describe the single change and when it was used. Keep other routine work consistent where practical, and note when conditions were not comparable.

  • Example change: prepare a smaller first batch for dinner service.
  • Record any follow-up batch separately from the first batch.
  • Share the agreed measurement and shift handoff with the next kitchen lead.

Illustrative comparison

Fictional Harborlight Hotel example; five dinner shifts per period. Amounts are recorded in kilograms and normalized to 100 covers.

Period Waste source Amount Covers Per 100 covers
Before Prepared vegetables left unused 16.0 kg 500 3.2 kg
After Prepared vegetables left unused 12.0 kg 500 2.4 kg

Illustrative shift-handoff reflection

“The covers matched, and we kept the same waste source and weighing method. The menu was also consistent, so this looks like a useful signal to repeat—not a reason to assume every shift will change by the same amount.”

Kitchen lead (illustrative role)

Fictional example dialogue

Harborlight Hotel

Check whether the comparison is fair

A before-and-after difference is useful only when the measurement and context are clear. Check whether covers, menu, service setting, shift mix, and measurement method were comparable.

  • Comparable: Similar covers, same dinner service, same waste source, and the same weighing method. Treat the result as a signal to repeat or investigate, not proof that the change alone caused it.
  • Not comparable: A different menu or service setting, a large change in covers, or a different recording method. Note the difference and avoid attributing the change to the trial alone.

Kitchen and purchasing colleagues can review the recorded context together. For regulated, safety-critical, or sensitive operational questions, use the locally approved material and the relevant trained-role handoff; this experiment does not establish policy or procedure.

Choose the next experiment together

Agree on one waste source, one measure, and one change with the kitchen and purchasing colleagues who own the work.

Record who will review the observations, when the comparable-shift results will be discussed, and where a correction or operational question should be directed. If the comparison is unclear, improve the measurement before drawing a conclusion.