A Story from the Field: Auntie Boonruean's Kitchen Under the Eaves

Auntie Boonruean is sixty-two. She lives with her daughter, her son-in-law and two grandchildren in a raised wooden house beside a canal in Ban Phaen subdistrict, Sena district. The heart of the home is not the living room. It is the open-air Thai kitchen behind the house, sheltered by a corrugated roof, with a polished concrete floor. There are two clay charcoal stoves for cooking rice and simmering curries, a single-burner gas stove for quick stir-fries, a teak food cabinet with mesh doors inherited from her mother, a tamarind-wood cutting board almost a hand's width thick, a stone mortar, pot racks, woven baskets of shallots and garlic, and three large glazed dragon jars that collect rainwater for washing vegetables and dishes.

This year the water came faster than anyone expected. The family managed to carry most of their belongings up into the house, but the kitchen sits at ground level. The water rose to nearly a meter and stayed for about three weeks. When it finally drained away, Auntie Boonruean walked down to the kitchen and stood in silence for a long time. A thick layer of mud covered the concrete. The lower part of the food cabinet had swollen so the doors no longer closed, the mesh was rusted and caked with silt, and white and green mold spots were spreading across the shelves inside. The tamarind cutting board had dark rings and a sour, musty smell. One of the clay stoves had cracked, the sack of charcoal was soaked through, sludge lay at the bottom of every jar, and a muddy, fishy odor drifted all the way up into the house.

Her youngest grandchild asked, "When will Grandma make sour curry again?" The question made her want to start cooking as soon as possible, but she was also worried. How safe could anything be after three weeks in muddy floodwater? Families across Sena, Bang Ban, Phak Hai and Bang Sai are asking exactly the same thing as the water recedes.

Why the Backyard Kitchen Is the Highest-Risk Part of a Flooded Home

• It is where food touches surfaces directly. Cutting boards, mortars, ladles, dish racks and the food cabinet are the last things food touches before it reaches the family's plates. If flood residue remains, germs have a short path to the dinner table.
• Floodwater carries sewage with it. Water that has flowed through drains, toilets, animal pens and garbage heaps commonly carries E. coli, other diarrhea-causing germs and Leptospira bacteria from rat urine.
• Traditional Thai kitchen materials are porous. Wood, wooden boards, bamboo, woven baskets and clay stoves all absorb dirty water deeply and are very hard to clean all the way through.
• An open kitchen is connected to the outdoors. Rats, cockroaches, flies and mosquitoes can come and go at any time, especially while rotting food scraps and standing water remain around the house.

Public health agencies warn that the most common risks after a flood include diarrheal disease, food poisoning, leptospirosis and skin infections. Mold can also trigger allergy symptoms and coughing, particularly in older adults and children. If anyone in the household develops a high fever, severe muscle pain, serious diarrhea or persistent vomiting, see a doctor promptly. This article is not medical advice.

The Impact Goes Beyond Dirt

Rising food costs. While the kitchen is out of action, many families buy ready-made food in plastic bags for every meal. The cost adds up quickly at a time when income has not fully recovered, especially for households that farm rice or trade at Sena market.

Buying new things that spoil again. If you rush to buy a new cutting board and new plates and put them straight back into a food cabinet that is still damp and full of mold spores, the new items soon smell musty and develop spots of their own.

Hazards from stoves and gas. A cracked clay stove can break apart when lit. A gas stove, hose and regulator that were underwater may be clogged with silt or have damaged fittings. Using them without a check can be dangerous.

Emotional attachment. Many items in a Thai kitchen were handed down from mothers and grandmothers. Deciding what to keep and what to let go is never easy. Having clear principles helps families make decisions they will not regret later.

Sorting the Kitchen Group by Group: What Can Be Cleaned and What Should Go

Before you start, put on rubber boots, rubber gloves and a mask. Switch on power to the kitchen area only after an electrician has confirmed it is safe. Watch out for snakes and other dangerous animals that may be hiding under piles of belongings.

Food and seasonings

Fresh food, rice, dried chilies, shallots and garlic, dry goods in bags, and seasonings in bottles with screw caps, snap lids, corks or plastic caps should all be thrown away if floodwater reached them, even if they look fine on the outside. Jars of fermented fish, fish sauce jars and pickling jars that were submerged up to the rim should also be discarded. Factory-sealed cans that are not dented, swollen or rusted can sometimes be saved by washing and disinfecting the outside before opening, but if you have any doubt, throw them out.

Cutting boards, ladles and wooden utensils

Wooden cutting boards, wooden spoons and ladles, chopsticks, spatulas and bamboo baskets that soaked in floodwater should be replaced. The wood absorbs dirty water deep inside, and even sanding the surface may leave germs within. Even if it is an old tamarind board you love, one option is to keep it as a memento that is never used for food again.

Pots, pans, dishes and mortars

Aluminum and stainless steel pots, iron woks, ceramic plates and glasses can be cleaned. Wash off the mud, scrub with dish soap, then sanitize in a suitable way, for example by boiling in water or soaking in a sanitizer labeled for use on food-contact items. Rinse with clean water and let everything air-dry. Stone mortars can be scrubbed and kept, but clay mortars that are cracked or have absorbed a lot of water should be replaced. Deeply scratched plastic containers and any baby bottle teats that touched floodwater should be thrown away.

Clay stoves, charcoal and gas stoves

A clay charcoal stove that is cracked or chipped should be replaced. One that is still sound can be washed and then left to dry completely for several days. Never light it while it is still damp, because it may crack. Charcoal soaked by floodwater is best discarded, since it has absorbed muddy water and may produce strong smells and heavy smoke; fresh charcoal is the better choice. Have a technician or your gas supplier inspect any gas stove, hose and regulator that went underwater before using them. Always light a charcoal stove in an open, well-ventilated area.

Wooden food cabinets with mesh doors

A teak or other hardwood cabinet whose frame is still solid can usually be cleaned and restored. Take out the shelves and doors, scrub off the mold with a brush, wipe everything dry and stand it where air can move around it. Rusted or torn mesh should be replaced. Cabinets made from plywood or particleboard that have swollen with water rarely recover and should be replaced.

Water jars and electrical appliances

Scoop all the silt out of the jars, scrub them, disinfect them and rinse several times with clean water before collecting water again. Do not use jar water for drinking or cooking rice; use bottled water or boiled tap water instead. Do not plug in a rice cooker, refrigerator or electric kettle that was underwater until a technician has checked it, or consider replacing it.

Why the Usual Fixes Are Not Enough for a Kitchen

• Blasting everything with a pressure hose. It moves the mud, but it does not disinfect, and the spray can splash germs onto walls and shelves higher up.
• Pouring strong bleach over the whole kitchen. The fumes sting the nose, the bleach corrodes metal and mesh, it does not penetrate wood, and it becomes very dangerous if mixed with toilet cleaners or ammonia.
• Lighting the charcoal stove to drive out moisture. It does not dry cabinets or walls deeply, it risks breaking a cracked stove, and it produces smoke and carbon monoxide if the space is not open enough.
• Burning incense or spraying air freshener. These mask the smell for a while, but the muddy and musty odor from the wood comes back.
• Painting or oiling the cabinet straight away. If the wood is still damp inside, mold grows under the paint or oil and it peels within weeks.

The WHD Approach: Fog the Open Kitchen, Ozone-Treat Only What Can Be Closed

An open-air Thai kitchen is special. It does not have four complete walls, and air flows in and out all the time. World Health Disinfection (WHD) therefore plans the work around the real conditions, rather than using the same formula as for a closed room.

Disinfection fogging service. The team applies CHEMGENE HLD4H as a fine ULV mist over the concrete floor, walls, posts, under shelves, into the gaps behind cabinets and around the water jars. This helps reduce bacteria, viruses and mold on surfaces, and it is the main treatment for an open kitchen.

Ozone treatment service. Ozone works well in spaces that can be closed, such as a storeroom next to the kitchen, a rice store, the ground floor of the house, or a closed room into which the wooden food cabinet has been moved. There it helps break down musty odors embedded in the wood and reduces airborne mold spores. In open areas where the wind blows through, ozone disperses too quickly, so the team does not recommend treating the open part of the kitchen with ozone.

The Service, Step by Step

1. Survey of the kitchen and surroundings. The team checks how high the water reached, where mold is growing, how damp the floor and walls are, which parts can be closed and which are open, and which items the family wants to keep.
2. Advice on sorting and mud removal. The team helps set priorities: what to throw out, what to clean, and what needs a technician, such as the gas stove and electrical appliances.
3. CHEMGENE HLD4H disinfection fogging. The whole open kitchen and any furniture being kept are fogged and left for the full contact time.
4. Ozone treatment of enclosed areas. The storeroom or house is closed and the ozone generator runs for a period matched to the space. No people, pets or plants may be in the treated area.
5. Ventilation. Doors and windows are opened and fans pull air out until no ozone smell remains, before anyone goes back in.
6. Re-check and advice. The team checks odor and mold spots again, and advises the family to rinse food-contact surfaces such as dish racks and prep tables with clean water once more before cooking.

Ozone safety: During treatment there must be no people, children, older adults, pets or plants in the area, and the space must be fully ventilated before anyone re-enters. The team controls the ozone dose according to room size. Sensitive electronics and rubber items, such as pot lid seals, jar gaskets and garden hoses, should be removed or covered beforehand.

Planning the Order of Work So You Do Not Pay Twice

When the kitchen is the heart of the home, everyone wants it back first. The most efficient order of work usually looks like this. First, throw out contaminated food and porous utensils, and shovel and wash the mud off the floor and walls. Second, let the area start drying with as much airflow as possible during the day. Third, arrange disinfection fogging for the open kitchen and ozone treatment for the storeroom, the ground floor of the house and the wooden food cabinet. Fourth, have the gas stove and electrical appliances checked. Fifth, wait about a week and watch the cabinet and walls for any new mold spots. Only then should you buy a new cutting board, new charcoal, new mesh and new dry goods, and move your plates and pots back into the cabinet.

Following this sequence avoids the most common and costly mistake: putting new kitchen items into a cabinet that is still damp and watching them go musty within weeks. It also gives the family a clear point at which they can say, with confidence, that the kitchen is ready.

Checklist Before You Cook in the Backyard Kitchen Again

• All the mud is gone, and the concrete floor and walls have been fogged with disinfectant.
• All food and seasonings that touched floodwater have been thrown away.
• Wooden cutting boards and wooden utensils that soaked in floodwater have been replaced.
• Pots, plates and mortars you kept have been cleaned and sanitized.
• The food cabinet is completely dry, has no musty smell and has shown no new mold within a week, and the mesh has been replaced.
• The clay stove is completely dry and not cracked, and you are using fresh charcoal.
• A technician has checked the gas stove, hose and electrical appliances.
• The water jars have been cleaned and disinfected, and you have a safe source of drinking water.
• There is no standing water around the kitchen, reducing mosquito breeding and rat shelter.

For homes that still have standing water nearby, the mosquito spraying service is a useful add-on, and the CHEMGENE HLD4H spray is handy for daily touch points such as door handles, taps and light switches.

Keeping the Kitchen Healthy in the Weeks That Follow

Once the family is cooking again, a few simple habits help make sure mold and muddy odors do not return during the rest of the rainy season.

• Let the food cabinet breathe. Leave the doors open for a while every morning, and keep the cabinet a few centimeters away from the wall so air can circulate behind it.
• Dry dishes completely before stacking them. Damp plates stacked inside a wooden cabinet are one of the fastest ways to bring mold back.
• Store dry goods in sealed containers. Rice, dried chilies and other dry ingredients keep better in airtight containers raised off the floor, which also keeps rats and insects out.
• Keep charcoal off the ground. Store charcoal on a pallet or shelf under cover so a heavy rain or a small flood does not soak it again.
• Cover the water jars. Lids keep out mosquitoes and debris. Check and clean the jars regularly.
• Use your nose as an early warning. If you smell mustiness when you open the cabinet in the morning, check the back panel and the shelves straight away.
• Clear food scraps every day. Rotting scraps attract rats, flies and cockroaches, which can carry germs back into the kitchen.

If spots or odor return despite these habits, it usually means moisture is still coming from somewhere, such as a wall that has not dried, a leaking roof or damp ground under the floor. Contact the team so the source can be found before it spreads.

10 Reasons Families in Sena Choose WHD to Restore Their Backyard Kitchens

1. Disinfection fogging with fine droplets reaches behind cabinets, under shelves and around water jars.
2. The team uses CHEMGENE HLD4H, which it works with routinely in homes, restaurants and schools.
3. Ozone treatment is used only where a space can be closed, not wasted in the open air.
4. The team understands traditional Thai kitchens, from charcoal stoves to wooden food cabinets and water jars.
5. Advice on sorting food and kitchenware is honest and direct.
6. Families are reminded which gas and electrical items need a technician's check first.
7. Ozone dose is controlled, with guidance on removing rubber items and electronics.
8. Work is sequenced so you do not have to buy new items twice.
9. The kitchen, storeroom and ground floor of the house can be treated in one visit.
10. You can follow up by phone or LINE if odor or mold spots come back.

Before and After: Auntie Boonruean's Kitchen Under the Eaves

In the Customer's Words

"Part of me wanted to keep everything, because it all belonged to my mother. The team explained that the teak cabinet was still good and could be cleaned and treated, but the cutting board and charcoal should be replaced. It made sense and I didn't feel pushed. Now I'm cooking rice on the charcoal stove again, and the grandchildren are eating Grandma's sour curry just like before."

— Auntie Boonruean, Ban Phaen subdistrict, Sena district (illustrative scenario)

Frequently Asked Questions

Q: An open kitchen has no complete walls. Can it be ozone-treated?
A: Ozone works in spaces that can be closed. For the open areas, the team focuses on disinfection fogging, and uses ozone only for storerooms, the house, or a closed room into which wooden furniture has been moved.

Q: My jar of fermented fish had a tight lid, but the water reached the rim. Is it still safe?
A: This is not recommended. Jar lids are not fully waterproof, and floodwater may have seeped in. Discard it to be safe.

Q: My tamarind cutting board soaked in floodwater. Can I sand it down and keep using it?
A: It is not recommended for food use, because dirty water soaks deep into the wood. A new cutting board is the safer choice.

Q: Can I dry wet charcoal and use it?
A: Charcoal soaked in floodwater has absorbed muddy water and may smell and smoke heavily. Fresh charcoal is recommended, and stoves should always be lit in the open.

Q: How long after fogging can I start cooking?
A: The team will advise a suitable time based on the size of the area, and recommends rinsing food-contact surfaces with clean water once more before use. Any area treated with ozone must be ventilated until there is no smell before anyone enters.

Q: Do I have to throw away my mother's old wooden food cabinet?
A: If it is hardwood with a solid frame and no rot, it can usually be cleaned, dried and ozone-treated in a closed room. Only the mesh and any damaged parts need replacing.

Q: Which areas do you serve?
A: You can ask about Sena, Bang Ban, Phak Hai, Bang Sai, Lat Bua Luang and nearby areas of Phra Nakhon Si Ayutthaya.

Let Your Backyard Kitchen Smell of Sour Curry Again, Not Mud

Serving Sena, Bang Ban, Phak Hai, Bang Sai and nearby areas of Phra Nakhon Si Ayutthaya.

See Disinfection Service – Click Here

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

Related Articles and Links

• Residential ozone disinfection
• Ozone treatment for odors and chemical residue
• Master Ozone Generator
• All articles
• External source: WHO: Floods and health and Department of Health, Thailand

#BackyardKitchenAfterFlood #PostFloodDisinfection #OzoneTreatment #MoldRemoval #OdorRemoval #Disinfectant #FloodRecovery #SenaDisinfection

Keywords: backyard kitchen after flood, flooded Thai kitchen, moldy wooden food cabinet, wet charcoal stove, flooded cutting board, post-flood disinfection, ozone treatment, musty odor removal, mold removal, Sena, Ayutthaya 2026