A Medical Certificate Is Not Proof Your Food Handlers Are Fit: Why Food Factories Must Check Staff Health Every Shift

By Isaac Muthui, CEO, Tamalaki Business Network Ltd. Originally published at factoraerp.com.

Every food factory has a file of medical certificates somewhere. In many plants it lives in the HR office and says very little about who is actually on the line this morning. The operator who had diarrhoea last night, the casual worker who started on Monday, the fitter who walked from the workshop to the filler in his own overalls: none of them show up in that file.

People are the one source of contamination that walks into the production area on its own, every shift. The East African hygiene code puts it plainly: micro-organisms live "mainly the hair, nose, mouth, throat, bowel and in sores", and they reach the hands because hands touch every part of the body during the day.

This article is for production leads, QA officers, HR staff and owners of small and mid-sized food and agro factories in Kenya and East Africa. It gives you an eight-step personal hygiene and staff health checklist for food factories, from medical fitness and illness reporting to handwashing, protective clothing, visitors and training records. It is operations guidance, not legal or medical advice; confirm the specifics with your county public health office, KEBS and your customers' specifications.

What the standards and the law actually say

Codex, the international baseline. Section 12 of the General Principles of Food Hygiene (CXC 1-1969) sets three objectives for anyone who comes into contact with food: maintain appropriate personal health, maintain an appropriate degree of personal cleanliness, and behave appropriately. It says food businesses "should establish policies and procedures for personal hygiene". People "known or suspected to be ill or carrying a disease likely to be transmitted through food should not enter any food handling area" if they are likely to contaminate food, and anyone affected "should immediately report illness or symptoms of illness to the management" (12.1). It lists the symptoms that should be reported: jaundice, diarrhoea, vomiting, fever, sore throat with fever, visibly infected skin lesions such as boils and cuts, and discharges from the ear, eye or nose (12.2). It then covers handwashing, behaviour and visitors (12.3 to 12.5).

The East African hygiene code. EAS 39:2001, the hygiene code of practice for the food and drink manufacturing industry, gives personnel hygiene a full section (5). It says employees, "including temporary employees", must be medically examined and certified fit to work, trained in hygiene and dressed in clean protective clothing, and that this includes "management staff, engineers, in addition to production workers". No applicant should work as a food handler until medically examined and passed fit (5.2.1). A certificate is required again after a water- or food-borne illness, or after "an absence of more than three days", for anyone who handles product or raw materials. Staff with respiratory infections or infectious illness, "particularly gastrointestinal disorders, vomiting, diarrhoea", must not work where food is exposed (5.2.2.2).

EAS 39 is also candid about the limits of testing: "medical screening and stool testing are not reliable as procedures to identify all potential carriers of pathogenic micro-organisms. Hence all food handlers shall be regarded as a potential source of micro-organisms, and shall be adequately trained in good hygiene practices." It then gets specific on training, protective clothing, handwashing facilities, jewellery and behaviour, and records (5.3 to 5.6, 14.3.3).

Kenyan law. The Food, Drugs and Chemical Substances (Food Hygiene) Regulations, 1978, made under Cap. 254, make the person in charge of a food plant responsible for health measures (regulation 15). They must take all reasonable measures to ensure that no one "suffering from any disease in a communicable form or having boils, sores or infected wounds" works where food could be contaminated; that a medical examination is carried out "in a Government medical institution or by a medical officer of health" on all employees before employment "and at regular intervals of not more than twelve months", with each employee's health certificate and records kept at the plant; and that food handlers and supervisors are trained and supervised. Part B of the Second Schedule sets the floor rules: clean outer garments, thorough handwashing, all jewellery removed, no tobacco, clean intact gloves, effective head-dress, and no personal belongings, eating or drinking where food is exposed. Regulation 11 covers handwashing facilities and signs.

Put together, the floor rule is: only fit people at the line, every day; clean hands, clean clothing and no personal items; everyone who enters follows the same rules; and records that prove it.

Why the certificate file is not enough

Food handler certificates have been in the Kenyan news this year. In May 2026, the Kenya Environmental Health and Public Health Practitioners' Union accused Nairobi City County of putting unqualified staff in charge of its food hygiene and medical certification unit and warned of "counterfeit food handlers' certificates", TNX Africa reported. In June 2026, Ghetto Radio reported that after the Nairobi County Assembly passed the Finance Bill 2026, the county health ministry was directed to take over issuing food handler certificates, with the health committee chair saying private entities had been issuing certificates "without doing the testing".

Whatever happens in that debate, even a genuine certificate is a snapshot of one day. The two questions that matter on the floor are different: is this certificate real and current, and is this person fit to handle food today?

Illustration (not real customer data): a bakery keeps medical certificates for its permanent staff in an HR folder. During a busy month it brings in six casual packers through a labour contractor. Nobody checks their certificates, and the supervisor does not ask anyone at the start of the shift whether they have been unwell. One packer has had diarrhoea for two days but needs the day's pay, so says nothing. With a short fitness question at entry, a clear rule that reporting illness will not cost the worker their place, and contractor staff on the same certificate register, the bakery could have moved that person away from open product before the shift began.

The 8-step personal hygiene and staff health checklist

1. Make medical fitness a register, not a folder

• Keep one register of everyone who works where food is handled: permanent, temporary and casual staff, agency workers, supervisors, managers and engineers.
• For each person record the examination date, where it was done, the certificate number and the date it is due again (not more than twelve months under regulation 15). Confirm with your county public health office how and how often they issue certificates.
• Nobody starts as a food handler until the certificate is on file (EAS 39, 5.2.1), and you have checked it came from the authorised issuer.
• Flag expiry dates a few weeks ahead so renewals are booked before a certificate lapses.

2. Make illness reporting easy and exclusion clear

• Write down which symptoms must be reported before starting work or as soon as they appear. Use the Codex 12.2 list above.
• Decide what happens next for each case: work away from exposed food, send home, or refer for medical examination.
• Set a return-to-work rule: a new certificate after a water- or food-borne illness or more than three days' absence (EAS 39), and, where appropriate, a set exclusion time or medical clearance (Codex 12.1).
• Make it safe to report. If telling a supervisor about diarrhoea means losing a day's pay, many people will stay quiet. Where you can, keep non-food tasks ready.
• Record every report and decision: who, what symptoms, what action, when they returned.

3. Cover cuts and wounds properly

• Keep a first aid kit with conspicuously coloured, waterproof dressings that contain a metal strip. EAS 39 (5.2.2.4) asks for this, and for a colour different from the food where possible. Codex suggests plasters of contrasting colour and/or detectable by a metal or X-ray detector.
• Issue dressings through a supervisor and log them, so a lost plaster can be looked for. This links directly to your foreign body control.
• Where needed, move people with cuts away from direct food contact, or add gloves over the dressing, as Codex suggests.

4. Make handwashing stations work

• Put wash hand basins close to workstations and at the entrances to processing areas. EAS 39 recommends one basin per 15 people in clean processing areas and one per 10 in dirty processing areas (5.7.9).
• Supply running water at a suitable temperature (regulation 11(3)); EAS 39 asks for warm, or hot and cold, water at basins in toilets and processing areas, while noting each factory may consider whether hot water is needed. Use foot, knee or sensor-operated taps so clean hands do not touch the tap again (EAS 39, 5.5.5).
• Provide liquid soap or sanitising soap in dispensers at every handwashing point (5.5.6) and a hygienic way to dry hands: paper towels with a cleanable bin, cabinet roller towels or air dryers, but no air dryers in sensitive production areas (5.5.7).
• Keep basins for hands only, never for food or utensils (Codex 9.2.3).
• Check every station at the start of each shift: water running, soap filled, towels stocked, bin emptied, and the sign regulation 11 requires telling employees to wash their hands with soap after using the toilet. Our water quality checklist covers the water itself.

5. Train for the handwashing moments, and watch gloves

• Teach when to wash, using Codex 12.3: at the start of food handling, when returning after breaks, immediately after using the toilet, and after handling contaminated material such as waste or raw and unprocessed food. EAS 39 adds before starting or restarting work.
• Teach how: soap and water, rinse, dry without recontaminating. Sanitiser comes after washing, not instead of it.
• Nails short, clean and free of nail varnish, and no excessive perfume (EAS 39, 5.6.2). Codex adds no false nails or false eyelashes where they pose a threat to food.
• Gloves must be clean, intact and sanitary (Food Hygiene Regulations, Part B), and do not replace handwashing: Codex says people wearing gloves should still clean their hands regularly.

6. Control protective clothing and changing

• Everyone entering processing areas wears clean protective clothing, visitors and sub-contractors included (EAS 39, 5.4.1). Kenyan regulations require clean outer garments and effective head-dress such as a hairnet or cap for people in direct contact with food.
• Choose overalls and coats with no external pockets above the waist, fastened securely (studs or velcro rather than loose buttons), and cover hair and beards (EAS 39, 5.4.4). Personal garments are not worn over protective clothing (5.4.3).
• Give workers separate footwear for use inside the factory (5.4.5). Protective clothing stays on site: it is not worn to or from work or outside the factory grounds (5.4.6).
• Provide a separate changing room, with clothes never hung in processing rooms (5.5.2), and separate areas for clean and soiled protective clothing (5.7.4).
• Where you have high-risk areas, such as post-cook or post-pasteurisation zones, restrict access to designated people in readily identifiable clothing, entered only through a changing room (EAS 39, 4.5.2 and 4.5.3). People should not move from raw material areas into areas where finished product is exposed unless precautions are taken (9.5.3). Colour-coded clothing makes this visible at a glance.
• Decide who launders protective clothing and how often, so nobody starts a shift in yesterday's coat.

7. Enforce jewellery, personal items and behaviour rules

• Jewellery: EAS 39 allows only plain wedding rings and sleeper earrings or studs, excluding watches and bangles (5.6.1); the Kenyan regulations require all jewellery removed. Pick your rule and apply it to everyone, managers included.
• No personal effects such as jewellery, watches or pins in handling or processing areas (EAS 39, 5.5.2); many plants add phones. Provide lockers outside production. EAS 39 recommends inspecting lockers every three months, with the employees' agreement, to keep them clean and free of pests (5.7.7).
• No eating, drinking, spitting, nose cleaning, smoking, snuffing or chewing tobacco in processing, packing and storage areas (EAS 39, 5.6.3; Food Hygiene Regulations, Part B). Codex adds vaping, touching the mouth and nose, and sneezing or coughing over unprotected food. EAS 39 asks for notices to be "prominently displayed and enforced", and for smoking only in designated areas away from production and toilets.
• Keep food out of production, with a canteen that does not open directly into it (EAS 39, 5.5.2).

8. Manage visitors and contractors as carefully as staff

• Visitors and contractors must wear suitable protective clothing and "be effectively managed" so they do not contaminate food (EAS 39, 5.1). Codex says they should be instructed and supervised, guided through the hygiene policy before the visit, and encouraged to report illness or injury that could cause contamination (12.5).
• Use a short declaration at the gate: recent symptoms from the Codex list, open wounds, agreement to the clothing and jewellery rules, and a signature.
• Pay particular attention to maintenance staff and contractors so they do not carry dirt on their clothing into production (EAS 39, 5.4.2). Engineers who move between the workshop and the line need to change, wash hands and follow the same entry routine every time, and their tools should be accounted for, as in line clearance and preventive maintenance.
• Escort visitors and keep them out of high-risk areas.

The daily entry check and the training record

Two routines tie the eight checks together.

A hygiene check at every entry to the floor. At the start of each shift, a supervisor or hygiene monitor checks each person before they enter production: fitness question answered (any symptoms from the list?), hands washed, clean protective clothing correctly worn, hair and beard covered, no jewellery or personal items, dressings coloured and logged. It takes seconds per person once it is a habit. Record exceptions and what was done. EAS 39 asks for records of hygiene and housekeeping inspections carried out at defined intervals against a written checklist (14.3.3 h), and for corrective actions to be recorded when hygiene is not at the defined level (14.3.5).

Training records that match the people on the floor. EAS 39 asks for induction and ongoing hygiene training for all staff, management included, delivered by competent people, with training records kept (5.3). Codex asks for training programmes to be reviewed and updated, for maintenance staff and others to stay aware of procedures, and for records of training (10.4). Kenyan regulations require food handlers and supervisors to be trained in food protection principles and the dangers of poor personal hygiene (regulation 15(1)(d)). In practice: no one starts without induction, refreshers run on a fixed cycle, and the training register lists the same names as the certificate register and the roster. All records should be signed and dated (EAS 39, 14.3.6).

Habits that make staff hygiene stick

• Fit today, not just certified this year. The entry question is the daily control.
• Reporting illness never costs the job. People hide symptoms if honesty is punished.
• Same rules for everyone, managers, engineers and visitors included.
• Empty soap is a non-conformance.
• One list of people across roster, certificates and training.

Staff hygiene connects to the rest of your quality system: cleaning and sanitation keeps surfaces clean once hands are clean, allergen control depends on people changing clothing and washing between products, pest control is easier when lockers and canteens are kept clean, and a QA hold gives you somewhere to put product made while a hygiene failure is investigated. If that product has already gone out, a mock recall shows how fast you could find it, and complaint handling shows whether customers have noticed.

Where an ERP helps

In a small plant, a well-kept binder can carry this. It gets harder with shifts, casual labour and contractors, because the auditor's question is "show me that everyone who worked on this batch was certified, trained and checked at entry", and the answer sits in several files.

FactoraERP tracks production batches and lots, stock status including QA holds, and non-conformance records with owners and closing dates. A hygiene failure at entry, an illness report or a missing handwashing station can be logged as a non-conformance with an owner and a corrective action, linked to the batches produced on that line and shift, and those batches can go on hold until QA decides. That puts the hygiene record next to the production record instead of in a separate folder. See factoraerp.com.

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FAQ

What should a personal hygiene checklist for a food factory include?
A medical certificate register, an illness reporting and exclusion rule, a cuts and wounds procedure, working handwashing stations, handwashing training, protective clothing rules, jewellery and behaviour rules, visitor and contractor controls, a daily entry check, and training records.

How often do food handlers in Kenya need a medical examination?
The Food Hygiene Regulations, 1978 require a medical examination before employment and at regular intervals of not more than twelve months, in a Government medical institution or by a medical officer of health, with certificates and health records kept at the food plant. EAS 39 also asks for a new certificate after a water- or food-borne illness or an absence of more than three days. Check the current practice with your county public health office.

Which symptoms should food handlers report?
Codex lists jaundice, diarrhoea, vomiting, fever, sore throat with fever, visibly infected skin lesions such as boils and cuts, and discharges from the ear, eye or nose, so management can decide on exclusion, reassignment or medical examination.

Can staff wear jewellery in a food factory?
EAS 39 allows only plain wedding rings and sleeper earrings or studs, and excludes watches and bangles. Kenya's Food Hygiene Regulations require people in direct contact with food to remove all jewellery. Many plants apply the stricter rule for simplicity.

Do visitors and contractors need to follow hygiene rules?
Yes. EAS 39 says they must wear suitable protective clothing and be effectively managed; Codex says they should be instructed, supervised and encouraged to report illness or injury.

Can hand sanitiser replace handwashing?
No. Codex says hand sanitisers should not replace hand washing and should be used only after hands have been washed with soap and water.

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Isaac Muthui, CEO, Tamalaki Business Network Ltd