Pantry Bugs: Identification & Management Guide

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Pest control specialist Scott McCombe breaks down how to manage common pantry pests

Co-authored by Scott McCombe and Hunter Rising

Last Updated: June 30, 2026 Fact Checked

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• Common Pantry Bugs
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• Where They Come From
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• Exterminating Pantry Bugs
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• Prevention
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• Video

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Finding pests in your pantry and food can be really gross, and knowing what kind of bugs you’re dealing with makes it easier to solve the problem. Even though most pantry bugs aren’t dangerous to humans, infestations can spread quickly if you don’t get them under control. wikiHow spoke exclusively with pest control specialists to break down the most common bugs you’ll find, plus advice on how to get rid of them and prevent them from coming back.

Pantry Bug Identification Guide

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Pest control specialist Scott McCombe notes the most common pantry bugs are grain beetles, flour beetles, and pantry moths. Pantry pests infest open food packages, like flour, grains, or cereal, where you may notice adult insects or larvae inside. Throw away infested food and clean your pantry to handle infestations.

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Section 1 of 4:

Identifying Common Types of Pantry Bugs

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   Grain beetles Grain beetles are typically brown and about 0.125 in (0.32 cm) long. They have flat, narrow bodies that have small pointed edges in the center. They tend to prefer cereal, flour, rice, and other grains, but they may get into any dry goods stored in your pantry.

   • Grain beetle larvae are pale yellow or white, and they look like worms that are about 0.125 in (0.32 cm) long when they’re fully grown.

   Meet the wikiHow Experts

   Scott McCombe is a pest control specialist and the CEO of Summit Environmental Solutions based in Northern Virginia.

   Paragon Pest Control is a pest control company based in Grand Prairie, Texas with an entomology background and custom pest control technology.

   Wilson Christner is a pest management professional with 14 years of experience and is the co-owner of Whitmore Pest & Wildlife Control.
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   Indian meal moths Experts at Paragon Pest Control note that Indian meal moths, or pantry moths, are some of the most common pests you’ll encounter. Adult meal moths grow up to 0.625 in (1.59 cm) long and have wings that are mottled with red or copper colors. They may be seen flying around near your pantry, where they lay eggs in grain products, flour, cereals, and spices. When they lay eggs, the Indian meal moth larvae look like whitish grubs that are 0.5 in (1.3 cm) long with a brown head.

   • When Indian meal moths form a pupa, they spin a silk-like material around their bodies.
   • Common signs of Indian meal moths include frass, which are sawdust-like droppings around your pantry.
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   Drugstore beetles Drugstore beetles are small round insects that are about 0.1 in (0.25 cm) long and have a reddish-brown color. They have grooves along their back that are covered in fine hairs and have antennae that are split into 3 separate segments. Drugstore beetles typically infest grains, but they’re also attracted to tea and species. Common signs of drugstore beetles include small round holes in food packaging.

   • Drugstore beetle larvae tend to be white or pale yellow and curled into a C-shape that’s about 0.25 in (0.64 cm) long.
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   Cigarette beetles Cigarette beetles have a slightly oval-shaped body that’s a reddish-yellow and about 0.1 in (0.25 cm) long. Their heads are angled down, so they look like they have a hump if you look at them from the side. They have smooth backs, sometimes covered in fine hairs, and antennae that are the same thickness for the entire length. Cigarette beetles are common on tobacco, but also on gains, spices, seeds, and rice.

   • Cigarette beetle larvae have a hairy white worm-like appearance, and grow up to 0.1 in (0.25 cm) long.
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   Flour beetles Flour beetles are reddish-brown and only grow up to 0.125 inches (0.32 cm) long. They have 3 distinct sections on their body with grooved lines running down their wings. They tend to have 2 peg-like protrusions just behind their heads and long antennae that get thicker near the ends. They primarily infest flour, but they also will eat anything that is old or moldy.

   • Flour beetle grubs are brown or white, and grow to about 0.1 in (0.25 cm) long.
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   Cabinet beetles Cabinet beetles are around 0.125 in (0.32 cm) long, and they are either solid black or have yellow-brown markings. Cabinet beetles tend to get into cereals and other grains, but they will also eat pet food, seeds, and other dried fruits.

   • Cabinet beetle larvae have long, narrow bodies that are yellowish or dark brown, and they may grow up to 0.25 in (0.64 cm) long.
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   Spider beetles Spider beetles are tiny beetles that only grow up to about 0.2 in (0.51 cm) long. They have a large spherical abdomen and long antennae that make them resemble tiny spiders. They’re typically found in cereal, grain, seeds, or dried fruit.

   • Spider beetle larvae are usually C-shaped and have a white grub-like appearance. They may also be surrounded by silk before they form a cocoon.
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   Rice weevils Rice weevils are reddish-brown or black insects that grow to about 0.125 in (0.32 cm) long. They’re most recognizable by the long snout at the front of their head and the small yellow spots along their bodies. Rice weevils typically prefer grains, such as rice, oats, corn, and sometimes pasta.

   • Rice weevil larvae are white with a tan head, and do not have any legs.
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   Bean weevils Bean weevils tend to be around 0.2 in (0.51 cm) long and have a teardrop-shaped body with black and reddish markings. Bean weevils usually infest dried beans and bore round holes in them so they can lay their eggs inside.
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    Flour mites According to pest management professional Wilson Christner, flour mites are “extremely small and usually appear as tiny white or cream-colored specks moving around in your pantry.” He notes that they can chew through flour and cereal packages, leaving small holes, and they may leave clumps of webbing inside. He adds that one sign of flour mites is a “stale or musty smell” that’s more pronounced around infested items.
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Section 2 of 4:

Where do pantry bugs come from?

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1. 
   Most pantry bugs are brought in from infested food packages. The Paragon Pest Control team notes that a lot of pantry pests travel in cardboard. That means they may already be present when food items are packaged or at the grocery store, and they spread to other foods when you bring them home and leave them in the pantry.

   • While it’s more rare, some adult pantry bugs may fly in through an open door or window looking for food and find a safe place inside your pantry to lay their eggs.

Section 3 of 4:

How to Get Rid of Pantry Bugs

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   Throw away any infested or expired items. McCombe recommends going through all the items in your pantry and inspecting them for signs of infestation. Common signs are holes in packaging and adults or larvae crawling around in the food. If you find any infested foods, toss them in a garbage bag and immediately take it outside to prevent the pests from returning.

   • If you have opened food and can’t tell if pests have gotten to it, pour it out onto a baking sheet and inspect the contents with a flashlight for any bugs or larvae.
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   Empty and clean your entire pantry with soap and water. The experts at Paragon Pest Control recommend taking everything out of your pantry and using regular soap and water to wipe down all the surfaces inside. When you’re finished, be sure to dry any wet spots so the moisture or humidity doesn’t attract new pests.

   • If you have shelf paper in your pantry, consider removing it and cleaning underneath it since pests may be hiding there.
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   Vacuum cracks and crevices. Take the crack and crevice attachment for your vacuum, and focus on the edges and corners. This helps remove any hidden eggs or pupae that are still inside your pantry. After that, you can restock your pantry with any food that hasn’t been infested.
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   Put out pheromone traps. McCombe notes that pheromone traps for the specific pantry bugs that you’re dealing with can help break their reproductive cycle. Place the traps around your pantry and check them regularly to see if you have the pest problem under control.
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   Avoid using pesticides. Using pesticides in your pantry is not recommended because you could easily contaminate food products and make them unsafe to eat. If you’re really having persistent issues and no other methods have worked, McCombe recommends “limited targeted applications of residual pesticide and insect growth regulators (IGRs).”

   • When you apply pesticides, remove all of the food from your pantry and follow the package directions. Wait until the pesticides are completely dry before putting anything back into your pantry.
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   Contact a pest control specialist if problems persist. If you’ve tried everything to get rid of the pantry bugs on your own and you’re still seeing them, reach out to your local pest control company. Explain the issues you’ve been having, what bugs you’re noticing, and what you’ve tried, and they may be able to offer more advice or use stronger pesticides to eliminate the problem.
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Section 4 of 4:

Preventing Pantry Bugs

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   Inspect new food packages when you buy them. When you’re at the store, always check the packaging for any small holes where bugs may have entered. If the packaging is clear, carefully look inside to see if you notice any adults or larvae crawling around. If you see any, choose a different package and avoid bringing it home.
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   Transfer foods into airtight glass, plastic, or metal containers. The Paragon Pest Control team notes that pantry bugs can’t chew through glass or thick plastic, so they won’t be able to get to any food sources. When you bring your groceries home, take them out of the cardboard packages and transfer them to storage containers that can be tightly sealed.
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   Put items in the freezer for a few days before your pantry. Christner recommends putting susceptible foods like flour and rice directly into the freezer when you bring them home. He says that keeping them frozen for 3-4 days can kill any potential eggs or larvae that are present, and they won’t be able to spread to other foods.
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   Use up older foods before opening new ones. Christner states, “When restocking your pantry, use the ‘first in, first out’ principle. Place new food items behind older ones so you consume the older items first.” He notes that this reduces the storage time you have for food so pests are less attracted to your pantry.

   • Avoid storing more food in your pantry than what you’re able to use within 2 months.
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   Clean your pantry and the surrounding area regularly. Every few weeks or months, take the items out of your pantry and wipe down the surfaces with soapy water. You may also take your vacuum with a crevice attachment to reach into corners where bugs may be hidden. Don’t forget to wipe up any food or spills near your pantry that could attract insects as well.

   • McCombe also recommends cleaning under your stove and under your fridge once a month to prevent pests.
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   Seal cracks or crevices around your kitchen. If there are any cracks or crevices you notice inside of your pantry, get a tube of caulk and apply it in a thin bead to fill them in. The caulk helps fill the gaps where bugs, eggs, and pupae may be hidden.
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