Moths in the kitchen: how to get rid of them for good

|By Mateo Cabrera
Botes de cristal con tapa llenos de pasta para proteger la despensa de las polillas en la cocina

You open the cupboard and a small moth flutters out. The next day you see another one on the ceiling and, in the flour, threads that shouldn't be there. Moths in the kitchen are a very common infestation that almost never has anything to do with cleanliness: it is usually the pantry moth, which comes into the house inside a packet. Here is how to recognise it, get rid of it and stop it coming back.

In short: moths in the kitchen usually arrive in flour, rice, nuts or pet food that is already infested. To get rid of them, throw away anything affected, vacuum the corners thoroughly, clean with water and vinegar, freeze anything doubtful and store food in airtight jars. Then keep an eye out for several weeks.

In this article:

Where moths in the kitchen come from

The most common culprit is the Indian meal moth (Plodia interpunctella). Its tiny eggs go unnoticed in packets of flour, cereal, rice, pulses, nuts, spices, chocolate or pet food. In the home, with warmth and food close at hand, the larvae grow, turn into moths and each female can lay hundreds more eggs.

That is why they appear even when the kitchen is spotless: all it takes is one packet that already contained eggs.

How to recognise the pantry moth

The adult is about one centimetre long and has two-tone wings: pale near the body and coppery at the tips. But the damage is done by the larvae: whitish little worms with a dark head that leave silk threads and clumps in food.

What you see What it usually is
Small moths in the kitchen and on the ceiling Adult pantry moth
Little white worms climbing the wall Larvae looking for a corner to pupate
Threads and clumps in flour or cereal Infested food
Dark bugs with legs in the rice Weevils (beetles, not moths)
Small golden moth in the wardrobe Clothes moth, a different species

If the problem is in the bedroom wardrobe, here is our guide to getting rid of clothes moths.

Dry rice and pasta, foods in which bugs and the pantry moth often appear

How to get rid of moths in the kitchen step by step

Killing the ones that fly isn't enough: if larvae or eggs are left, they will be back within a few weeks. Work in this order:

  1. Empty the whole cupboard. Take out every packet, including unopened ones: the larvae can get through paper and thin plastic.
  2. Check them one by one. Anything with threads, clumps, larvae or holes goes in the bin, in a sealed bag, and out of the house that same day.
  3. Freeze anything doubtful. Anything that looks clean but was nearby can spend a week in the freezer.
  4. Vacuum thoroughly: shelves, corners, gaps, hinges, drawer runners and where the units meet the ceiling. Empty the vacuum outside the house.
  5. Clean with hot water and vinegar and let everything dry completely before putting anything back.
  6. Keep an eye out for several weeks. If you see a new moth, go over the corners again and recheck your food.

Bugs in rice and worms in the pantry: what to do

Bugs in rice are usually weevils: tiny brown or black beetles. They aren't moths, but you deal with them the same way: throw away the affected packet, check your cereals and pulses, clean the shelf and store everything in closed containers.

Worms in the pantry, on the other hand, are usually moth larvae. If they are climbing the wall or on the ceiling, the source is usually close by: look for the packet they came out of, because as long as it is there they will keep appearing.

How to stop moths coming back to your kitchen

  • Airtight jars made of glass or rigid plastic for flour, pasta, rice, pulses, nuts and spices. If an infested packet gets in, the problem stays inside the jar.
  • Check your shopping when you get home and freeze for a week any flour and nuts you won't be using soon.
  • Oldest first: forgotten packets at the back are the perfect hiding place.
  • Pet food counts too. Store it with a lid and don't leave leftovers in the bowl for hours.
  • Clear the crumbs from shelves and drawers every so often.

And if you fancy a tidy-up while you are at it, here are some ideas to organise your pantry.

Home remedies for moths: what works and what doesn't

What works is everything above: throwing out, cleaning, freezing and storing in airtight jars. Pheromone traps help you tell whether there is still activity, but on their own they won't end an infestation. Bay leaves and cloves are popular remedies with no solid evidence that they work. And don't spray insecticide near food.

Frequently asked questions

Why do I have moths in my kitchen if it's clean?

Because they almost always arrive inside a packet that already contained eggs. Cleaning helps stop them settling in, but the source is the infested food.

Can you eat rice with bugs in it?

It is best to throw it away. Even if you pick out the bugs, there may be eggs and debris left. A packet of rice isn't worth the risk.

How long does it take to get rid of pantry moths?

The clean-up takes an afternoon, but it is worth keeping watch for several weeks, ideally a couple of months if your home is cool, because in warm conditions the moth's life cycle is completed in just over a month and in the cold it takes considerably longer. If you don't see a single one in that time, the infestation has most likely ended.

With a good check, a thorough clean and airtight jars, moths in the kitchen usually disappear and don't come back. And if you are getting your home ready for autumn, take a look at our selection for the home.