How-to · 4 min read · Updated 6 November 2026
How to keep a shared office kitchen clean: a practical hygiene guide
Why office kitchens get dirty so quickly
An office kitchen is used by many people who each feel only partly responsible for it. Food is stored for days, mugs are left in the sink, and the same cloth is used on worktops, mugs and spills. The result is sticky handles, a smelly fridge and a sponge that spreads more bacteria than it removes.
The fix is not just more cleaning hours. It is a clear split between what the cleaner does and what staff do, backed up by a few rules that are easy to follow.
Who does what
| Task | Cleaner | Staff |
|---|---|---|
| Wipe worktops, tables and splashbacks | Every visit | Wipe up own spills |
| Clean sinks, taps and draining boards | Every visit | Rinse sink after use |
| Washing up and loading dishwasher | Agree in specification | Own items, straight away |
| Empty bins and food caddies | Every visit | Use the right bin |
| Clean microwave inside and out | Every visit or weekly | Cover food when heating |
| Clear out and clean fridge | Weekly, on a set day | Label and date food |
| Clean kettle, coffee machine and water boiler | Weekly descale or as needed | Report faults |
| Mop floor | Every visit | Report spills |
Whether the cleaner does the washing up is one of the most common points of friction. If you want it done, put it in the specification and allow the time for it, because a full sink can easily add 20 to 30 minutes to a visit.
Step by step: the weekly fridge clear-out
- Pick a fixed day and time, such as Friday afternoon, and tell everyone
- Ask staff to label and date their food
- Remove anything unlabelled, past its use-by date or visibly spoiled
- Take out shelves and drawers and wash them in warm soapy water
- Wipe the inside, door seals and handle with a food-safe cleaner
- Dry and refit, then check the temperature reads 5°C or below
- Wipe the outside and handle, which is touched more than anything else in the kitchen
Do not overfill the fridge. Air needs to circulate to keep everything cold, and an office fridge crammed with lunch bags and milk cartons often runs warmer than its setting suggests.
Cloths, sponges and colour coding
Damp sponges and cloths are ideal for bacteria, so a sponge that sits by the sink for weeks spreads germs rather than removing them. Disposable cloths, or cloths laundered hot after each use, are much safer. Many cleaning teams use the common colour-coding convention of green for kitchen and food areas, blue for general areas and red for toilets, so a kitchen cloth is never one that has been used in a washroom.
- Replace sink sponges at least weekly
- Use separate cloths for worktops and for washing up
- Never use washroom cloths, mops or buckets in the kitchen
- Leave cleaning chemicals in a closed cupboard, not on the worktop
Appliances that need regular attention
- Microwave: wipe inside after spills, and steam-clean weekly to loosen splatter
- Dishwasher: clean the filter and seals and run an empty hot cycle regularly
- Kettle and boiler: descale, especially in hard water areas
- Coffee machine: empty drip trays and grounds daily and follow the maker's cleaning cycle
- Toaster: empty the crumb tray, as crumbs attract pests
- Water dispenser: sanitise the spout and drip tray on the supplier's schedule
Rules that stop the kitchen becoming a battleground
Keep the rules short and put them where people will see them. A list of ten rules is ignored. Three or four specific ones work better, such as washing your own mug straight away, labelling fridge food, and wiping the microwave if you splatter it. Back them up by making the fridge clear-out day predictable and consistent.
Keeping pests out of the kitchen
Crumbs, open food and overflowing bins attract mice, ants and fruit flies, and once pests find a reliable food source in an office they are hard to remove. Good cleaning is the first line of defence.
- Keep shared food such as biscuits and cereal in sealed containers
- Empty kitchen bins and food caddies on every visit
- Clean under and behind the toaster, microwave and fridge regularly
- Wipe up sugar and milk spills around the kettle straight away
- Report droppings or gnaw marks immediately rather than cleaning them up quietly
If you do see signs of pests, call a pest control service. Cleaners can then deep clean affected areas once treatment has started, using suitable protection.
Frequently asked questions
Do office kitchens need to follow food hygiene law?
A kitchen used only by staff to store and heat their own food is not normally a food business, so food hygiene registration does not apply. The employer still has a duty under the Workplace Regulations to keep the workplace and facilities clean, and to provide somewhere suitable for staff to eat if they need it. If you cater for staff or visitors, food law may apply.
How often should an office fridge be cleaned?
Clear out out-of-date and unlabelled food weekly, wipe the inside and seals at the same time, and do a full empty-and-wash at least monthly. Wipe the handle on every cleaning visit. Weekly clear-outs on a fixed day work best because staff know when to take food home.
Should office cleaners do the washing up?
It depends on your specification. Some offices include loading the dishwasher or washing up in every visit, while others expect staff to wash their own items and the cleaner only cleans the sink and drainer. Either works, but it must be agreed and written down, and the time needed must be reflected in the price.
office kitchen fridge hygiene how-to
