Freeze your opened spaghetti for a week.

Yes, freeze it. That’s the only way to reliably kill any weevil eggs that might already be in the pasta. They come from the factory, not your kitchen.

After a week in the freezer, move the spaghetti to an airtight container. Glass or hard plastic – not the cardboard box it came in. Weevils can chew through cardboard and thin plastic bags.

Then store it in the pantry like normal. The freezing step is the insurance. Skip it and you’re gambling.

Your pasta will be fine.