Baked-on grease on a cooking surface is not the same problem as a dirty floor. The floor can be rinsed, and the drainage already exists. A griddle, a range hood canopy, a fryer housing or a salamander deck has to be cleaned in place, usually with no floor drain nearby, and any water used has to be contained and removed. That single constraint - where the loosened grease goes - decides which cleaning method is workable long before anyone compares machine prices.
Before any equipment is quoted, a buyer's site walk should produce three maps of the kitchen. First, a surface map: every cooking surface, frame and panel that is in scope, with the material and the joint type. Second, a water map: where water may be applied, where it is allowed to run, and how it will be recovered. Third, an electrical map: the available supply, circuit protection and cable routes. A PowerDe cleaning equipment series can then be matched to the three maps, instead of chosen from a specification sheet and discovered to be unusable on the day of the trial.
Define the soil before defining the machine
Ask the kitchen team what is actually on the surface, and write the answer down in physical terms: the type of fat, whether it has been heated past its smoke point repeatedly, whether it is mixed with char, sugar or flour, and how many days have passed since the last deep clean. Polymerised fat that has been heated again and again behaves differently from fresh grease. It may need dwell time, mechanical action or a repeated pass rather than more heat, and that changes the cleaning cycle and the labour estimate.
Record the surface material and what it can tolerate. Stainless steel, painted steel, aluminium, galvanised parts, gaskets and adhesive-mounted labels each respond differently to heat, pressure and detergents. Where a component carries a manufacturer's cleaning instruction, treat it as a limit on the process, not a suggestion.
Test the drainage question first
Drainage is the fastest filter. A process that floods a surface requires a drain, a sump or a legal route to one. Where none exists, the only viable processes are those that use little enough liquid to be wiped or vacuumed up. That is why buyers should ask suppliers what a machine consumes, rather than reading the phrase "steam cleaning" as a single technology with one water demand.
Ask the supplier to state the mode they are proposing and what it implies for water handling. Equipment that switches between dry and wet steam cleaner settings lets an operator choose a drier pass on an electrical or sensitive frame and a wetter pass on an open, soakable surface. A machine that only delivers one mode cannot make that distinction, and the site walk has to work around it.
Then write down how the residue leaves the area: absorbent material, a recovery vacuum, a squeegee to a specific drain, or a bucket. Each option adds a step and a labour cost, and a quotation that ignores those steps is not a comparable quotation.
Check the utilities the site can actually supply
Fixed equipment usually needs a supply that the kitchen may not have near the cooking line. On the Fixed Steam Cleaning Machine PowerDe HW02 page, the published figures are a 220 V working voltage, 6 kW heating power, a steam temperature of 160 °C, a vapour pressure of 0.8 MPa, an 80 L SUS304 tank and a tap-water inlet with a 4-point internal-tooth (1/2 inch) joint. Those numbers are a starting point, and each one becomes a question for the site walk rather than a claim about the kitchen.
- Can the circuit near the cooking line carry the stated heating load, and is the protection suitable for a wet environment? If not, how far can the cable be routed, and who supplies the extension?
- Is there a potable water tap within reach of the inlet fitting, and is the thread compatible? If the machine takes tap water, what does the water hardness in this location imply for the tank and heater, and what maintenance does the supplier recommend?
- Does the machine footprint - 1,200 × 800 × 1,200 mm including handles on the HW02 - fit through the door, along the aisle and into the space where it will be stored between jobs?
The HW02 page lists the applications the manufacturer has described for that model: vehicle exterior cleaning at fuelling and parking sites, interior vacuuming and disinfection, and engine-compartment cleaning. It also lists protection against leakage, short circuit, high temperature, high voltage, water shortage and high-voltage explosion, and states a 6 kW heating load. If a buyer's scope is cooking surfaces, the frame around them or an extract hood, that list is not a match to be assumed; it is a gap to be closed in writing with the supplier before ordering. The same page does not publish water consumption, steam output, continuous run time, weight, hose and wand length, accessory contents or noise, so those items go on the question list, not into a comparison table built from assumptions.
Ask what happens between the passes
A cleaning cycle is more than the time the nozzle is moving. Heating from cold, refilling the tank, emptying recovered water, changing attachments and letting a surface cool enough to be touched are all part of the day. Ask the supplier how the tank is filled and how long a full tank supports in the job they expect, and whether the machine can be refilled mid-task. A supplier who cannot answer these questions has not scoped the job; a supplier who can usually has already run this type of kitchen.
Ask the same about the people. Who operates the machine, how long does the supplier's training take, and what does the operator need to do before and after each use? Ask which parts are consumables, how they are replaced and how quickly they ship to the site. Ask what happens if the machine fails during a contract clean: is there a spare, and what is the response time?
Run one controlled trial on one surface
Before signing for a whole kitchen, agree one small area and write the pass criteria beforehand. A practical trial records: the soil condition before, the mode used, the time taken, the water used, how the residue was recovered, and the condition of seals, paint, insulation and labels after drying. Photograph the area. Then run the same procedure on a second, similar surface to see whether the result repeats.
Add a cooling and re-entry step to the trial. The kitchen has to reopen, so measure how long the area takes to dry and become safe for food preparation, and who cleans the surrounding floor afterwards. These are the numbers that turn into the schedule and the labour cost. If a machine needs to be compared against an existing manual method, compare it on the same criteria: time, water handling, labour and re-open time, not on the temperature on a nameplate.
Document the answer for the next buyer
Once the trial ends, the record should be short enough to reuse: a surface list with materials and limits, a water-handling route, the utility check for each location, the pass criteria and the trial result. Keep the supplier's written answers with it. When the next site or the next contract comes up, the same file answers most of the questions, and the quotation comparison becomes a check of scope rather than a guess.
If the scope reaches beyond what any standard unit is described for - a hood interior, a duct run, a frame that cannot be wetted - send the surface list and the water constraints to the supplier and ask what they propose, with the mode and the residue-handling step named. PowerDe presents itself as an intelligent cleaning equipment manufacturer with custom configurations and engineering services, and its solutions page is where a customised scope starts. The contact details on the site list a Shenzhen address, phone and the sales@powerde.net mailbox. Ask for the answers in writing, then test them on one surface before the whole kitchen depends on them.
