There are few kitchen moments worse than scooping out a cup of rice for dinner and spotting something moving in it. That is exactly what happened to @bby.meng, a Costco shopper in Irvine, California, who says she opened a brand new bag and found it full of bugs.

She explained that she has been using the same container to store her rice for a while. When she went to pour more rice in, she noticed something odd. There were dark bugs in the rice, and also lighter, clear ones. She was looking for the larvae, too, and described the whole thing as disgusting.
@bby.meng
A Sealed Bag and a Clean Container
What bothered her most was where the bugs came from. According to @bby.meng, this was a brand new, sealed bag. She keeps the rice in her container, she said, so it is not as though they leave it open and out where bugs can get in. She had never had this happen before, and she called it vile.
For many people, the first reaction to a story like this is to wonder what they did wrong at home. Her point is that she did not do anything wrong. The bag was sealed when she opened it.
It is a situation that can happen with grains and dry goods, and it is more common than most people realize. Here is what is going on, and what you can do about it.
How Bugs Get Into Rice and Flour
Common pantry pests, such as weevils and certain moths, are tiny and can show up in grains, flour, cereal, pasta, and dried beans. Their eggs can be laid at any point in the supply chain, from the farm and the mill, to the warehouse and the store shelf. The eggs are so small that you would never see them, and a sealed bag does not always keep out an insect that is already inside. If the conditions are right, warmth for example, the eggs hatch into larvae, which is when people notice them.
That means finding bugs in a sealed bag does not automatically mean your kitchen is dirty. It can simply mean the eggs were there before you bought it.
What To Do If You Find Bugs in Your Rice
- Stop using it. Do not try to pick out the bugs and cook the rest. Throw the entire bag away.
- Take the trash out. Seal it in a bag and put it in an outside bin, so any bugs do not spread through your home.
- Check nearby food. Look at other open grains, flour, cereal, pasta, and baking goods in the same cabinet. Pests can move between packages, especially paper and thin plastic.
- Empty and clean the cabinet. Vacuum the shelves and corners, then wipe them down with warm soapy water. Let everything dry fully before you restock.
- Wash the container. If you stored the rice in a container, wash it thoroughly with hot soapy water and dry it completely before using it again.
- Save your receipt and the packaging. You will want them for a refund or exchange.
Getting Your Money Back
Costco has long been known for its generous return policy on groceries and other items, and many members take advantage of it when something goes wrong. If you find a problem like this, bring the product and your membership card to the service desk, or use the store’s online return options, and explain what happened. Policies can change, so check the current terms before you go. Taking a few photos of the bugs, with the date and the package label visible, can also make the conversation easier.
It is also a good idea to let the store know about the issue. A report about a product problem helps them pull other packages from the shelf and check the same batch.
How to Keep Pantry Pests Away
You cannot completely control what comes home from the store, but you can reduce your risk and catch problems early.
- Inspect new bags. Before you store them, check for tiny holes, webbing, clumping, or movement.
- Freeze before you store. Many people put flour, rice, and other grains in the freezer for several days after they buy them. The cold helps kill eggs that may be hiding inside.
- Use airtight containers. Glass jars or thick plastic containers with tight lids are best. They will not stop pests that are already in the food, but they will keep new ones out.
- Buy what you will use. Big warehouse bags are a good value, but a 25 pound bag can sit for months. Consider splitting a bulk bag into smaller containers and freezing the extras.
- Keep the pantry cool, dry, and clean. Crumbs and spills attract pests. Wipe shelves regularly.
- Rotate your stock. Use the oldest items first, and label containers with the date you bought them.
It Happens, and It Is Not Your Fault
@bby.meng’s reaction, a mix of disbelief and disgust, is one most people would share. The good news is that a small number of bugs in a bag does not mean anyone did anything wrong, and most stores are willing to make it right. The best you can do is throw out the affected food, clean up carefully, and speak up so others do not end up with the same surprise.
Next time you shop in bulk, take an extra minute to check that bag. It could save your dinner.
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