Quick answer
Plan a mobile food unit around the food, preparation and number of customers it can safely handle. Provide suitable water, handwashing, cleaning, protected storage, temperature control and waste arrangements for the full trading period. Confirm registration, trading permissions and any national certification requirements separately; being mobile does not remove food-hygiene duties.
The menu must fit the unit’s facilities
A compact unit preparing raw ingredients and ready-to-eat food needs workable separation, storage and cleaning during service. A queue does not increase its safe capacity.
FSA guidance for movable premises explains facilities and safe handling in England, Wales and NI. Scotland’s council-linked mobile-trader standard gives practical national requirements.
Check the whole trading period
| Area | What to establish |
|---|---|
| Menu and workload | Safe preparation, holding and service capacity. |
| Water and handwashing | Adequate potable water, suitable delivery and accessible facilities. |
| Cleaning | Suitable methods, supplies and equipment-washing arrangements. |
| Storage | Protected food, raw/RTE separation and suitable cold/hot capacity. |
| Waste | Clearly separated waste water, refuse and safe disposal. |
| Site conditions | Protection from weather, dust, pests and public contact. |
| Failure plan | What stops or changes if water, power or temperature control fails. |
Make water and waste arrangements dependable
Use potable water appropriate for food, hands and food-contact cleaning. Keep water containers and pipework suitable, clean and distinguishable from waste containers. Check quantity and heating capacity against the intended trading hours.
The Scottish standard addresses running-water delivery, accessible wash basins and sealed identifiable waste-water arrangements. Do not assume a jug or a bottle of hand gel provides equivalent facilities. Confirm the unit’s arrangements with the relevant authority.
Protect food through preparation and service
Plan raw and ready-to-eat work, tool storage, packaging and replenishment so that staff can follow separation rules in the available space. Protect open food from customers and the environment.
Use equipment capable of controlling the food under actual trading conditions. Check storage and holding through the relevant method; an equipment rating or an insulated box alone does not demonstrate performance on a busy or warm day.
Worked example: water runs short before service ends
Hypothetical example: a stall’s handwashing water supply is insufficient for the final part of a busy event.
The operator follows the contingency procedure and stops affected preparation until suitable facilities are restored. They revise water capacity and replenishment planning. Continuing to handle open food while relying on gloves would leave the hygiene failure unresolved.
Check the national and local arrangements
Resolve where the unit and relevant preparation/storage activity are registered, and check event and street-trading permissions. In Scotland, section 39 compliance-certificate arrangements can form part of the street-trading licensing process. A certificate and a licence are distinct steps.
Review new menus, sites or trading volumes. Food-hygiene planning also needs to sit alongside appropriate gas, electrical, fire and other workplace arrangements, handled by people competent for those tasks.
Next steps
Test the complete service setup before trading and agree a clear failure response. Use separation controls and the cleaning schedule in the unit’s actual workflow.
Read official mobile-premises guidance — Check facilities and national/local arrangements for the actual unit.