How to get rid of mice in the kitchen

Why the kitchen is the room you act on fastest

Mice are in your kitchen for the obvious reason, and they are doing more damage there than anywhere else in the house.

A mouse produces somewhere in the region of fifty to eighty droppings a day and urinates more or less continuously as it travels, using the trail to navigate. That means every surface on its route is contaminated, including the inside of the cupboard where the cereal is. Rodents are associated with salmonella and, in the case of deer mice, with hantavirus; the CDC's guidance on cleaning up after rodents exists because dry droppings and nesting material can aerosolize when disturbed.

So the correct response to a mouse in a kitchen is not "set a trap and see." It is a short, deliberate sequence, done in one evening.

Step 1: lock up the food tonight

This is the step people skip, and it is the one that decides whether the traps work.

A mouse eats about three grams a day. It does not need the sack of flour — a spilled handful of rice behind the toaster feeds it for a week. As long as there is ambient food, your trap bait is competing with a buffet.

What goes into hard containers with sealed lids: cereal, rice, pasta, flour, sugar, oats, crackers, chips, bread, dried fruit, nuts, baking supplies, tea and coffee. Glass, metal or rigid plastic. Not the original cardboard, not a bag, not a resealable pouch.

The pet food, always. A bag of dry dog or cat food on the floor of a pantry is the single most common mouse food source in an American kitchen. Into a bin with a lid.

Fruit off the counter overnight, or into the fridge.

The bin gets a lid that closes properly, and it goes out at night.

Then clean behind and under. Pull the refrigerator, the stove and the toaster out. The crumbs and grease under appliances are the actual pantry. Sweep, degrease and dry.

And wipe up the surfaces every night while this is running. No dishes left out, no crumbs on the counter.

Step 2: set traps, plural, the same night

Mice are not a one-trap problem. If you see one mouse in a kitchen there are very likely more, and a single trap tests the population rather than reducing it.

Where they go. Flat against the wall, with the trigger end toward the wall, in these places: behind the refrigerator, under and beside the stove, inside the base cabinet under the sink, at the back of the pantry floor, along the toe-kick line of the cabinets, and behind the dishwasher if you can reach. Mice travel with one shoulder against a vertical surface and almost never cross open floor. Where to place mouse traps covers the reasoning in detail.

How many. Six is a reasonable starting number for a kitchen with real activity, twelve if there are droppings in more than one cabinet. Cheap snap traps make that affordable, which is the whole argument for them — see how many mouse traps do I need.

What to bait with. A pea-sized smear of peanut butter, hazelnut spread or a single sunflower seed pressed into the trigger. Small, so the mouse has to work at it. Not cheese. Best mouse trap bait goes through the options.

Which trap in a kitchen specifically. If there are children or a dog in the house, use enclosed traps — a sealed snap trap or an electronic tunnel keeps the mechanism out of reach and means you never see or touch the result, which matters in a room where you prepare food. If the kitchen is adults-only and you want numbers, plain snap traps are faster and cheaper. Best mouse traps for kitchen is the roundup, and best enclosed mouse traps covers the sealed designs.

What not to use. Glue boards, because the death is prolonged and they catch indiscriminately. And poison, emphatically, in a kitchen: bait blocks near food preparation, a dying mouse inside a cabinet void, and a secondary-poisoning risk to a cat. Mouse trap vs poison sets out why we take that line.

Step 3: clean up properly

This is a health step, not a tidiness step, and the method is specific.

Ventilate first. Open the windows and leave the room for half an hour before you start on a heavily soiled cabinet.

Wear gloves. Disposable, and a mask if there is a lot of material.

Spray, wait, wipe. Soak the droppings and the surrounding surface with a disinfectant or a bleach solution, leave it for about five minutes, then pick everything up with a paper towel and bag it.

Never sweep or vacuum dry. That is the entire point of the method — dry material can become airborne. This is the single most important line on this page.

Then wash the surface, and wash your hands afterwards.

Throw out anything chewed. Packaging with gnaw marks, a bag with droppings on it, anything stored in an opened cardboard box in an affected cupboard. It is not worth it.

Our dedicated page on cleaning up mouse droppings covers the detail, including what to do with nesting material and how long to keep a room ventilated.

Step 4: find the hole

Trapping without sealing means you repeat this every autumn. A mouse fits through a quarter-inch gap — about the width of a pencil.

In a kitchen, check in this order:

• Under the sink, where the water and waste pipes come through the wall or floor. This is the most common entry point in the room by a wide margin.
• Behind the stove and refrigerator, where the gas line or water line passes through.
• The dishwasher supply and drain penetration.
• The gap at the back of base cabinets, where the cabinet carcass meets the wall.
• Around the extractor duct where it exits the building.
• The toe-kick void along the base of the cabinets, which is often open to the wall cavity.
• Any vent or soffit on the exterior wall behind the kitchen.

Pack the gaps with stainless steel wool or quarter-inch hardware cloth and seal over it. Expanding foam alone gets chewed through. If the mice are coming from inside the wall rather than directly outside, mice in walls is the next page to read.

How long it takes

Night one to three: most of the catches. If you have set enough traps and the food is locked up, this is when the numbers come in.

Night four to seven: stragglers, often the more cautious animals. Keep every trap set and baited.

A week with no catches: you are probably clear. Leave two traps set permanently under the sink and behind the refrigerator as monitors.

Still catching after two weeks: you have an ongoing entry point, not a one-off. Go back to step four, and read signs of mice in the house to work out how far the problem extends beyond the kitchen.

What does not work

• One trap, waiting. The most common mistake on this page.
• Peppermint oil, ultrasonic plug-ins and dryer sheets in an open kitchen. Repellents need a small sealed volume to hold a concentration — see do ultrasonic repellers work.
• A cat. Some cats hunt, most do not, and a kitchen with a mouse problem and a cat in it is also a kitchen where you cannot use most of the other tools.
• Trapping without sealing. It works, and then it works again next month, and the month after.

The short version

Food into hard containers tonight, including the pet food. Six traps against the walls behind the appliances, baited small. Clean droppings wet, never dry. Then find the hole under the sink and pack it with steel wool. That sequence clears a kitchen in about a week, and skipping the first or last step is what turns it into a recurring problem.