I need a reality check on pantry moths. I have a prewar one-bedroom in Astoria where the kitchen has exactly one under-counter cabinet that backs onto the radiator pipe chase and one upper cabinet above the stove. I cook a lot, so the cupboards are dense. Over the last two winters, I’ve found the telltale webbing in a box of quick oats, then later in a bag of jasmine rice from a bulk buy, and last weekend I found a few larvae crawling along the underside of the upper shelf.

I’ve tried sticky pheromone traps. They catch adult males, but the larvae keep showing up. I’ve vacuumed, wiped with vinegar, tossed anything questionable. I mostly use deli containers and a few OXO-style square canisters, but I’ve noticed the square ones have gaps near the latch on one corner.

My question: In a small NYC kitchen with no pantry and cabinets that get warm from the radiator, have you found the only real fix is to freeze/dump everything, move everything into round glass jars with one-piece lids, and treat the cabinet itself? Or is the heat/ventilation a bigger reservoir than the containers? I’m tired of thinking one stray grain behind a shelf clip is generating a whole ecosystem. I’d rather do one brutal reset this weekend than keep playing whack-a-moth.

Ah man, those little brown jerks are the worst. I had them in a bag of rice from Key Food years ago and they came back for months. Traps only tell you they’re there, they don’t stop the ones already in your food.

I’d skip the fancy OXO if the latch is wonky. The heavy deli containers with the blue gasket lid are fine as long as the rim is clean. I also keep stuff in zipper bags inside containers for the stuff I won’t use fast, because the larva can chew through a plastic bag but not the hard container.

The heat from the radiator definitely speeds up the life cycle. I’d pull everything out, wipe the hinge cups with a toothpick and hot water, and just accept half my pantry lives in the fridge for a month.

Wait, can they actually get into screw-top jars? I just found a little web in my oatmeal canister this morning and now I’m not okay. I thought if it was sealed enough for me, it was sealed enough for them.

Do I need to throw out everything in the same cabinet, even closed boxes? Also, what do the eggs look like? I might just cry in my tiny kitchen.

Some corrections, because this is solvable but only if you treat the cabinet as part of the infestation. Gowanus_G is right that traps are monitoring, not control. Glass vs plastic matters less than the seal geometry. A screw-top Mason jar with a one-piece lid is very good; two-piece canning lids are also fine if the ring is snug. The thin plastic screw-top jars that spices come in are not. A flour bag clipped shut is not. The larvae can squeeze into thread gaps and under the lip of shaker lids.

Heat from radiator pipe chases creates a nice warm rearing chamber, but the original source is almost always a grocery item. Look for frass that looks like dry sand or fine clumped grains. You may find webbing inside the hollow shelf peg holes or behind the cabinet door hinges.

The reset: remove everything; vacuum all crevices with a crevice tool; wipe with hot water and dish soap, not vinegar alone; use a toothpick around hinges; inspect the underside of shelves; then freeze new incoming for 72 hours if you have space, or store in smaller amounts you can use before anything hatches. I would not rely on bay leaves, cedar, or pantry moth traps alone. Those are supplements, not killing methods. In a small kitchen, buy less and rotate faster.

Yes! This is my nightmare because I keep a lot of specialty flours from Sahadi’s and Kalustyan’s and those bulk bags are a Trojan horse. The thing nobody mentions is they can hide in the paper label glue on jars and in the holes where shelf clips rest. I found live pupae under a shelf clip once and nearly screamed.

Have you tried the chest freezer quarantine? I do 4 days at 0°F for all new flours, then into glass, and I still put the glass jars in the freezer for two days after washing because the threads hold eggs. Also kill any adult moth immediately—every one you see is hundreds you don’t see. Lysol and bay leaves are not enough. We need a NYC pantry moth support group.

Okay I just read this whole thread and immediately put my open bag of rice in the freezer. My freezer is one of those tiny top-of-fridge boxes and now I have a bag of rice wedged against frozen peas and a Dr. Praeger’s box.

Do I really need to keep new flour and rice in there for days, or can I just buy smaller packages and store in the fridge? Also, how do I know if a box is safe to keep? I found one tiny moth in my apartment near the window this week and now I’m side-eyeing every cabinet.

Thanks, everyone. The hinge and shelf-clip advice was the missing piece. I pulled out the shelf this morning and found frass inside the little plastic sleeve that holds the clip, plus a few strands of webbing in the screw hole. I also realized one of my square canisters had a cracked lid at the back corner—probably from being shoved against a pot. So I’m doing the full reset.

To answer big_city_beth: you don’t necessarily need days in the freezer if you buy smaller packages and store most things in the fridge, but for any rice/flour/oat product that sat in an opened bag, I’d freeze for at least 72 hours if you can, then shake the bag and check the seams. If the box was never opened and has no pinhole or webbing along the inner corners, you can quarantine it in a zipper bag and check again in a week.

For BayRidgeBakes, do you prefer round glass or rectangular Cambro for thread cleaning? I find round jar threads easier to scrub, but rectangular stores better in a 14-inch-deep prewar shelf. I’m leaning round Mason jars for flours and one deep bin for pastas.

This thread is genuinely horrifying but also making me feel less insane. I’m on the fifth floor and I saw a single moth near the window, not the kitchen, and now I’m wondering whether they can come in from outside or from another unit.

Do I need to tell my landlord, or is this just a kitchen routine thing? I don’t have much pantry food but I have a bag of birdseed for my parakeet—should that go in the freezer too?

Quick note for UptownUnfamiliar: yes, birdseed is a known source—freeze it for a few days or keep it in a metal tin. The ones wandering by the window are often adults looking for a crevice, but the breeding source is always food. You don’t need the landlord unless you’re seeing them around a shared trash or air shaft, but I’d mention it if your building has bulk garbage storage.

On the container question from astoria_arch: round Mason jars with one-piece lids are easiest to clean, but rectangular Cambro with the red gasket lids are also fine if you wipe the gasket channel with a dry brush. That’s probably overkill once the source is gone.

Related, if you’re resetting your dry goods calendar anyway, there’s an earlier thread, "Union Square Greenmarket: is 8am too late for corn, or am I just hitting the wrong stands?": Union Square Greenmarket: is 8am too late for corn, or am I just hitting the wrong stands?