Can an industrial bakery's ovens and control panels be thermally surveyed during production?

Yes, and production is the right time. Oven, prover, mixer and cooling supplies carry their real load only while the line is baking, and many bakeries bake overnight. The survey covers the intake, main switchboard, MCCs and the oven and line control panels, imaged live by a thermographer working alongside the site’s electrician and within the site’s hygiene rules.

Why the survey follows the bake

Thermography shows heat at connections carrying current. On electric ovens the heater circuits draw heavily during baking and little between batches. Mixers, dividers, spiral coolers and freezers follow the same pattern. A survey on a cleaning shift or a quiet day images supplies that are barely loaded. Book it for a normal production run, even if that means a night visit, and record the load at the time against every reading (see what load a survey needs).

What should be in scope

The intake and main LV switchboard.
Oven and prover supplies and control panels, electric or gas-fired: heater contactors, burner and fan controls, and the cables into the oven.
MCCs and VSD panels for mixers, dividers, conveyors and slicers (see MCC and VSD panels on a running line).
Spiral cooler, freezer and refrigeration panels (see refrigeration and cold store panels).
Compressed air, packing, warehouse and office boards.

The ovens themselves, their burners and their internal heating elements are the oven supplier’s domain and sit outside an electrical distribution survey.

Traps a good thermographer avoids

Process heat. Panels mounted near an oven are warmed from outside. A warm enclosure beside a baking oven is not a finding. Readings are taken on the connections inside and compared like for like, phase to phase.
Heater contactors that cycle. Temperature control switches oven heater circuits on and off. The thermographer images while the circuit is on and records it, so a contactor caught in its off period is not reported as cool and sound.
Stainless and shiny surfaces. Bakery plant is full of them, and they reflect heat from the ovens. Readings are taken on painted or oxidised surfaces, and any reading on bare metal is noted as a limitation.

Working within the bakery’s rules

The site’s authorised electrician opens panels under the site’s permit to work, including any rules for flour dust areas. The thermographer follows the bakery’s hygiene and PPE controls, from hair and beard covering to no loose items, and a survey route that keeps out of open-product areas (see high-care food production areas).

What the report gives you

A same-day report from Ti Thermal Imaging that locates each finding by panel, circuit and phase, with the measured temperature, where it was taken, the difference in °C from a matching reference and the load at the time. Ti inspects and reports; the bakery’s electrical contractor investigates with the circuit isolated and carries out any work.

Load is what reveals a problem

On a London data centre build, commissioning thermography by our team found 16 busbar sections reading above 80 °C under test load, the highest 103.5 °C at a tap-off unit, all located and imaged before handover. Different site, same rule: survey under the load the equipment really carries.

Frequently asked questions

Does production have to stop for the survey?

No. It is a live survey and needs the line baking normally.

How often should a bakery be surveyed?

Most food sites survey annually, and again after a new oven or line is installed (see how often for food production sites).

Can the survey be done on a night shift?

Yes. If the bakery’s main production runs overnight, that is when the survey should be.

Can an industrial bakery’s ovens and control panels be thermally surveyed during production?