A Story from the Field: The Ovens Survived, the Aroma Did Not

Auntie Somjit chairs a small housewives' group in Tha Ruea District, Phra Nakhon Si Ayutthaya. Her group has a dozen or so members who make thong muan (crispy rolled wafers), khanom phing (melt-in-the-mouth tapioca cookies), crispy banana chips and jars of roasted chili paste. They sell at provincial fairs, souvenir shops and to loyal customers who simply phone in their orders. Production happens in a single-storey building behind Auntie Somjit's house, not far from the Pa Sak River. On a normal morning the whole lane smells of toasted coconut and palm sugar.

During the 2026 floods, the Pa Sak overflowed into the neighborhood and the workshop sat in knee-deep water for several days. Members managed to lift the gas burners and the bag sealer onto higher shelves, but the wooden kneading tables, the ingredient racks, leftover sacks of flour, stacks of printed boxes and rolls of product labels all soaked in brown water.

When the water receded, everyone came back to shovel out the mud, scrub the floor and wipe down the tables. Yet a week later, when Auntie Somjit unlocked the door one morning, a heavy, damp, muddy smell hit her before she had even switched on the lights. A line of black spots had appeared along the bottom of the plastered walls. Underneath the wooden tables there were fluffy white patches. One member with allergies could not stop sneezing; another complained that her hands itched after washing pots at the sink. The most worrying moment came when a regular customer called and asked, very politely, "Will the new batch smell as good as before? I heard your kitchen was flooded."

"The ovens are still here, and we can buy new flour," Auntie Somjit says. "But if customers lose confidence, it's like starting from zero." The same situation can play out for many community enterprise groups across Tha Ruea, in subdistricts such as Tha Ruea, Champa, Tha Luang, Ban Rom, Sala Loi and Pho En, where homes and village halls double as food workshops. This article explains why a community food kitchen needs a structured post-flood recovery and how World Health Disinfection (WHD) can help.

Note: this story is a realistic scenario based on the kind of situations commonly found after floods. It is used for illustration and does not refer to any specific person or group.

Why a Community Food Workshop Is at Higher Risk Than an Ordinary Home

A flood never brings only water. It carries mud, overflow from drains and septic systems, animal waste, rotting vegetation and sometimes dead animals. When the water drops, all of that residue settles into tile grout, around table legs, beneath shelving and into the lower part of porous walls. In a private home the main concern is the health of the family. In a snack and food-processing workshop the concern extends to every customer who buys and eats the product. That is a much wider circle of responsibility, and it is why food groups should approach recovery more carefully than a typical household.

1. Health risks for group members

• Leptospirosis: the bacteria can be present in floodwater and mud contaminated by animal urine, especially rats. Anyone shoveling mud or with cuts on their hands and feet should wear rubber boots and gloves every time. A high fever or painful calf muscles after wading through floodwater is a reason to see a doctor promptly.
• Gastrointestinal illness: bacteria such as E. coli from sewage can linger on surfaces that later touch food, leading to diarrhea and stomach upsets.
• Skin infections and irritation: hands that spend hours in dirty washing water are prone to rashes, fungal skin infections and infected cuts.
• Allergies and asthma: airborne mold spores trigger sneezing, a blocked nose and coughing, especially in a closed, warm room heated by ovens and stoves.

2. Risks to product quality

Baked crisps, banana chips and dry snacks absorb odors remarkably easily. If the production room smells musty, that smell can transfer into the sealed bags without the makers even noticing, because people quickly become used to the smell of a room they work in every day. Mold spores in the air can also settle on snacks while they are cooling on trays, making the products go moldy long before their expected shelf life. A customer who opens a bag and finds even one moldy spot may never buy again, and may tell friends too.

3. Reputation and income

OTOP products are sold on trust. Customers buy because they believe the food is made cleanly, with care, by people they can picture. A rumor along the lines of "their kitchen flooded and they never cleaned it properly" can wipe out orders overnight, even if it is not true. With year-end fairs, New Year gift baskets and festival markets approaching, a long shutdown means lost income for every family in the group, not just for the chairperson.

4. Time and energy

Most housewives' groups do not have dedicated cleaning staff. Members are already exhausted from restoring their own homes, and they share their spare hours to help the workshop. If the cleaning is done the wrong way and has to be repeated two or three times, that wastes precious time and, just as importantly, morale.

Common Fixes That Usually Fall Short

• Bleach on its own: it can lighten stains on smooth surfaces, but it does not penetrate porous wood or plaster where mold roots grow. The strong chlorine smell can cling to ingredients and packaging, and bleach is dangerous when mixed with certain acidic bathroom cleaners.
• Running fans for days: fans speed up drying, which is helpful, but they also blow mold spores all around the room. They do nothing to kill bacteria hiding in corners and crevices.
• Air fresheners and scented candles: they mask the smell for a few hours at most. Worse, synthetic fragrance can attach itself to snacks and change the way the product tastes and smells, which is the opposite of what a food maker wants.
• Painting over moldy walls: fresh paint hides the black spots for a while, but if the wall is still damp inside and the mold is alive, the paint will soon bubble, peel and show new growth.
• Rinsing with plain water and restarting production straight away: the room may look clean, but invisible contamination remains under tables, behind cabinets and in grout lines.

None of these steps is useless on its own. Drying, scrubbing and removing mud are essential. The problem is relying on any one of them as the complete solution. A food workshop needs a sequence: remove, clean, disinfect, deodorize, ventilate, and then keep humidity under control.

The Solution: Chemgene HLD4H Disinfection Fogging Plus Ozone Treatment by WHD

World Health Disinfection (WHD) provides professional disinfection fogging and ozone treatment for homes, buildings and businesses affected by flooding. For community food kitchens, the team plans the work together with the group so the space is ready for safe production again, and so that members understand every step.

Disinfection fogging with Chemgene HLD4H: an ultra-low-volume (ULV) fogger breaks the disinfectant into a very fine mist. The droplets drift into corners, under tables, behind shelving and into wall crevices that a cloth simply cannot reach. This helps reduce bacteria, viruses and mold on surfaces. The team follows the product label and advises the group on rinsing direct food-contact surfaces with clean water before the first production run.

Ozone shock treatment: an ozone generator releases a high concentration of ozone gas into the sealed room for a set period. Ozone helps destroy airborne mold spores and breaks down the odor molecules responsible for musty, muddy and sewage smells that have soaked into the room. Once the cycle ends and the room is ventilated, ozone reverts to ordinary oxygen. It leaves no synthetic perfume behind, which is exactly what a snack maker needs.

Step-by-step process for snack and food-processing workshops

1. Site survey: the team checks how high the water rose, where mold is visible, the materials of the walls and furniture, the ingredient store and the available ventilation openings.
2. Clean-up guidance before treatment: remove all mud; discard any ingredients, packaging and labels that touched floodwater; move remaining good ingredients and any open containers out of the room completely.
3. ULV disinfection fogging: Chemgene HLD4H is fogged across the production area, storage room, dish-washing area and the members' toilet.
4. Ozone shock: the room is sealed and treated according to its size, with no people, pets or plants inside.
5. Ventilation: after the cycle, doors, windows and exhaust fans are opened, and members wait until the ozone smell has faded before re-entering.
6. Re-check and advice: the team checks odor and mold spots again and gives practical advice on humidity control and daily cleaning before the first batch.

Ozone safety: high-concentration ozone irritates the airways. During treatment there must be no people, pets or plants in the room. The team posts signs and closes off the area. After treatment the room must be ventilated thoroughly before anyone goes back in. Sensitive electronics such as digital scales and bag sealers, and rubber items such as seals and gaskets, are covered or removed, and the ozone dose is controlled to suit the space.

10 Reasons Housewives' Groups and Community Food Producers Choose WHD

1. We use Chemgene HLD4H disinfectant, a high-level disinfectant without the harsh chlorine smell.
2. ULV fogging reaches corners, under tables and behind racks where hand wiping cannot.
3. Our ozone treatment service breaks down musty odors instead of masking them, with no synthetic scent left on your products.
4. It helps reduce airborne mold spores that could otherwise land on snacks while they cool.
5. The work sequence is designed around food kitchens: ingredients and open containers always come out first.
6. We advise on rinsing food-contact surfaces before your first post-flood batch.
7. Safety comes first: nobody, no pets and no plants inside during ozone treatment, with full ventilation before re-entry.
8. Delicate electrical tools are covered or moved and the ozone dose is controlled.
9. We understand residential ozone disinfection, ideal for workshops attached to family homes.
10. Easy to reach by phone and LINE, and we schedule around your group's production rounds.

Before and After Restoring the Snack Workshop

Customer Voice

"At first I thought we could clean it ourselves, but after all the scrubbing the smell was still there. My biggest fear was that it would get into the snacks. After the team fogged and then ran the ozone treatment, we opened the room and most of the musty smell was gone. Our member with allergies said she could breathe easily again. We're toasting coconut again now."
- Auntie Somjit, chair of a housewives' group in Tha Ruea (a character from an illustrative scenario)

Practical Tips for Keeping a Community Food Kitchen Healthy After Restoration

Professional treatment gives you a clean starting line, but what happens over the following weeks matters just as much. Thai weather after a flood season stays humid, and the rainy spells can return. These habits help keep mold and odors from creeping back.

• Throw away everything that touched floodwater: flour, sugar, coconut, oil, packaging film and labels should all go, even if they look dry. Floodwater can seep through folds and heat seals in ways you cannot see.
• Wash, sanitize and rinse food-contact tools: wash utensils and trays with dish soap, sanitize them and rinse with clean water before use.
• Lift and space storage racks: keep ingredient shelves off the floor and a hand's width away from the walls so air can circulate behind them.
• Use exhaust fans while cooking: steam from stoves and steamers adds a lot of moisture to the room. Extract it while you work rather than letting it condense on walls.
• Watch for warning signs: new black spots or a returning musty smell during long rainy periods are signs to call for a re-check, before the problem spreads.
• Keep a simple cleaning log: write down the dates of cleaning and disinfection. It helps when explaining your hygiene routine to customers, fair organizers or local authorities.
• Check the wooden furniture: wooden tables that soaked for days may need to be sanded, dried thoroughly or replaced with stainless steel surfaces if mold keeps returning.
• Do not forget the rest of the house: if members' mattresses or sofas smell damp, our dust mite removal service can help, and if mosquitoes are swarming around the workshop after the flood, see our mosquito spraying service.

Talking to Your Customers About the Recovery

For an OTOP group, communication is part of recovery. Customers who hear nothing tend to imagine the worst. Customers who hear a clear, honest story usually come back. Consider a short message on your LINE group or social media page explaining what happened and what you did: the workshop flooded, damaged ingredients and packaging were discarded, the room was cleaned, professionally disinfected and treated with ozone, and production restarted only after everything was dry and ventilated. You do not need to exaggerate or make promises you cannot keep. Simply describe the steps. Photos of the clean room, new ingredient stock and members back at work can do more than any advertisement.

It also helps to restart with a smaller batch, check the aroma and shelf life carefully, and then scale back up. That way you protect your reputation while you confirm the room is truly back to normal.

A Realistic Recovery Plan for a Small Food Group

Every workshop is different, but most small community kitchens in Tha Ruea follow a similar path back to production. Thinking about it in stages helps the group share the work fairly and avoid the trap of rushing straight back to cooking.

Stage 1: Safety and removal

Before anything else, make sure the electricity has been checked and is safe to switch on. Wear boots and gloves. Shovel out all mud, remove soaked cardboard, and bag up spoiled ingredients and packaging for disposal. Take photos of the damage for your own records, insurance claims or any assistance programs the local authorities may announce.

Stage 2: Washing and drying

Scrub the floor, walls and furniture with detergent and clean water, working from the top down. Open every door and window and let the room dry. Porous materials such as plaster and untreated wood can hold water for a long time, so this stage may take several days. Rushing it is the most common reason mold returns.

Stage 3: Professional disinfection and deodorizing

Once the bulk of the dirt is gone and the room is reasonably dry, this is the right moment for WHD fogging with Chemgene HLD4H followed by ozone shock treatment. Treating at this point means the disinfectant reaches clean surfaces rather than layers of mud, and the ozone can work on the odor that remains in the structure rather than on piles of rubbish.

Stage 4: Restocking and a trial batch

After ventilation and rinsing of food-contact surfaces, bring in new ingredients and packaging. Make a small trial batch first. Smell it, taste it and keep a few bags aside to check how they hold up over the following days. If everything is normal, scale back up to full production.

Stage 5: Ongoing prevention

Keep the room ventilated, control humidity, clean daily and look out for early signs of mold. A quick re-check from the team is worthwhile if the smell ever comes back after heavy rain.

Frequently Asked Questions

Q: When can we start producing snacks again after the disinfection?
A: After fogging and ozone treatment, the room must be ventilated until the ozone smell has faded, and direct food-contact surfaces should be rinsed with clean water. The team will tell you a suitable time based on the size and condition of your workshop.

Q: Will the disinfectant make our snacks smell?
A: Chemgene HLD4H does not have the harsh odor of chlorine, and ozone treatment leaves no synthetic fragrance. In addition, the team asks you to move ingredients and finished products out before work starts.

Q: Some ingredient bags were in the water but are not torn. Can we still use them?
A: We do not recommend it. Any ingredients or packaging that touched floodwater should be discarded, because contaminated water can seep through folds or seals.

Q: Can members stay in the building during ozone treatment?
A: No. There must be no people, pets or plants in the treated room. If the workshop is attached to a house, the team will seal the area and advise everyone to stay in another part of the property until ventilation is complete.

Q: Do moldy walls need repainting?
A: Let the wall dry completely, then disinfect and treat with ozone first. If you want to repaint, do so only once the wall is properly dry, never while it is still damp.

Q: Is your service available in Tha Ruea and nearby districts?
A: Please call 065-556-6294 or message LINE @whd268 to check the service area and book a site survey.

Q: Can we buy a disinfectant for daily use afterwards?
A: Yes. The Chemgene HLD4H 750ml spray is convenient for routine spot disinfection. Always follow the label instructions.

Bring the Sweet Aroma Back to Your Workshop

Talk to the WHD team and plan disinfection fogging and ozone treatment around your group's production schedule.

View Disinfection Service - Click Here

Book Ozone Treatment - Click Here

Call 065-556-6294 · LINE @whd268 · Email worldhealthdisinfection@gmail.com

Related Links

• Disinfection fogging service
• Ozone treatment for odors and chemical residue
• Master Ozone Generator
• All articles

Health references: World Health Organization (WHO): Floods · Department of Health, Thailand