What happens if you don't keep your packed lunch in the refrigerator? (2024)

doorRobin Hilmantel
What happens if you don't keep your packed lunch in the refrigerator? (1)

The situation
If you are a devoteebreakfast packages, then you are undoubtedly in the situation of havingbrought your lunch to work, store it in the desk drawer and keep your fingers crossed that it will last a few hours without refrigeration (especially if your office refrigerator is too full to store anything in it anyway).

What you are concerned about
Even though you can't even remember how many times you left your lunch in your locker as a high schooler without a problem, you still have a nagging feeling that it's only a matter of time before your turkey sandwich or room temperature yogurt makes you sick. (Snack AND lose weight with this boxPrevention-approved treats fromThe gift.)

The real risk
"The big problem is that bacteria likeE colican salmonella and listeria grow on food for so long and reach a level where they can actually make people sick if they ingest it," says Samuel Crowe, an epidemiologist at the Centers for Disease Control and Prevention. "Common symptoms include nausea, vomiting, stomach cramps and diarrhea, which can occur within 6 to 12 hours, or sometimes even a few days, after consuming the food.

The CDC estimates that about 48 million people get itsick with a foodborne illness3,000 die every year – so even if you've skipped lunch before and haven't gotten sick, it's just not worth the risk, especially if you have a health condition that affects your immune system in any way, such as diabetes, autoimmune diseases or cancer; or if you are over 65 years old.

BUT: 26 Methods of treating food poisoning

Just to be sure, sandwich,saladsand other meals with perishable ingredients should not be left at room temperature for more than 2 hours. Leftovers should also be returned to the refrigerator within 2 hours. Even if your lunch only contains one questionable ingredient, like mayonnaise, it should all be in the refrigerator, Crowe says.

And if for some reason your meal is exposed to heat (for example, when you go to work), the growth of bacteria and germs becomes an even faster problem:The food should not be stored unrefrigeratedfor more than one hour when exposed to weather conditions of 90 degrees or higher.

However, you may be able to get away with refrigeration if you prepare your lunch the night before, throw it in the refrigerator (so everything is cold in the morning), and then pack it in a freezer container.isolated food bagin the morning along with an additional source of cold such as an ice pack, Crowe says.

One lunch you might get away with and not throw in the fridge is a peanut butter and jelly sandwich, since none of these ingredients are perishable, says Crowe. But other than that, there aren't many options — at least healthy ones — that fit the bill.

BUT: 4 signs of food poisoning

Briefly:
It may sound ridiculous, but almost anything you pack for lunch and leave out for more than a few hours (without taking the proper steps to keep it cool) should be thrown out to save you from possible food poisoning. Unless, of course, you survive solely on PB&Js, which we can't say we recommend.

At least now you have a good reason to invest in itmadpose is trendy!

What happens if you don't keep your packed lunch in the refrigerator? (3)

Robin Hilmantel

Digital director

Robin Hilmantel is digital director at Women's Health, where she oversees editorial strategy for WomensHealthMag.com and its social platforms. She has nearly 10 years of experience writing and editing for national publications and more than 8 years of experience writing and editing specific health, fitness and nutrition content. In addition toWomen's health, her work has also appeared inTIME,Food Network Magazine,Cosmopolitan,New York Magazine,YOURSELF,Glamour.comand other publications.

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What happens if you don't keep your packed lunch in the refrigerator? (4)

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What happens if you don't keep your packed lunch in the refrigerator? (2024)

FAQs

What happens if you don't keep your packed lunch in the refrigerator? ›

Perishable foods held in the Danger Zone (40°F to 140°F) are subject to rapid growth of bacteria that may cause food poisoning. Bacteria that cause foodborne illness grow rapidly. Food can become unsafe to eat in just 2 hours if left at room temperature.

Does lunch go bad if not refrigerated? ›

TWO HOURS is the MAXIMUM time perishable foods should be at room temperature (ONE HOUR at temperatures 90 degrees F and higher). This INCLUDES the time they're on the table during your meal.

Does packed lunch need to be refrigerated? ›

Prepackaged combos are sometimes packed for lunch. These combos often contain perishable foods such as luncheon meats, cheese, and cut fruit that must be kept refrigerated, even though they may be cured or contain preservatives.

How long can a lunch box sit out? ›

Perishable foods, such as cold cut sandwiches and yogurt, can be left out at room temperature for no more than 2 hours before they become unsafe to eat.

What happens if you don't cover food in the fridge? ›

If you regularly refrigerate foods unwrapped or uncovered, you may want to ditch the habit, says Le. Some microorganisms (such as molds and yeasts) can thrive in the cold temperature of the refrigerator, where they can circulate in the air and land on food.

How long can food sit without refrigeration? ›

The best plan is to put leftovers in the refrigerator right after your meal. Food that is sitting out for a party or picnic should be chilled after two hours at typical room temperature. If it's above 90 degrees Fahrenheit (32 degrees Celsius) or more, food should not sit out for more than one hour.

Is it safe to eat food left out for 4 hours? ›

Myth: You shouldn't put hot foods in the refrigerator.

If you leave food out to cool and forget about it after 2 hours, throw it away. Bacteria can grow rapidly on food left out at room temperature for more than 2 hours.

Do packed lunches go bad? ›

But even a good lunch can go bad. That's why she said it's critical to pack perishable lunches in an insulated bag with at least two cold sources to ensure the food stays under 40 degrees. “Those cold sources can be anything from a gel pack to in fact a juice box or a water bottle,” Eskin said.

What sandwiches don't need refrigeration for lunch? ›

Sandwiches
  • Use a variety of grains for the bread, keeping in mind that whole grains are healthier. ...
  • Roll-ups or pinwheels (sliced from a roll-up) made with peanut butter, honey, & sunflower seeds.
  • Turkey & cheese roll-up with alfalfa sprouts.
  • Hummus & veggie wrap (try red pepper strips, carrot sticks, or cucumber sticks)
Feb 23, 2011

Is it OK to make packed lunch the night before? ›

Storage of Packed Lunches

Prepared sandwiches and rolls must be kept cool. If they have been prepared the night before, the packed lunch should be stored in the refrigerator until needed. Make sure the refrigerator is working properly; it should be below 8°C, (ideally below 5°C) where the food is stored.

How do you keep a lunch box cold without a refrigerator? ›

Put ice packs inside of your lunch box to keep food cold. You can make your own ice pack by freezing a damp sponge. Freeze a water bottle or juice box, and keep it in your lunch box. It will chill your food and be ready to drink by lunchtime.

How long can a sandwich sit in a lunch box? ›

Your lunch bag or box will stay cold for about two hours, but you don't want to push it. According to the United States Department of Agriculture, the bacteria danger zone is between 40°F and 140°F. Your lunch bag can easily climb into that zone if it's left sitting too long without refrigeration.

What food should parents not pack in the lunchbox? ›

Meat, poultry, fish, dairy products, soft cheese, and cut fruits and vegetables are most likely to be attacked by food- borne bacteria.

Can I eat food left out overnight? ›

Eating food left out overnight is a food safety no-no. No exceptions. So, please make your personal pledge today to NEVER eat it. Even if you're in the habit of doing this and haven't gotten sick yet, it's better to be safe than to take the risk and become terribly ill or lose your life to foodborne illness.

What happens if you eat cooked meat left out overnight? ›

A health inspector would say: some bacteria could have found its way onto the steak and the lack of refrigeration could have allowed that bacteria flourish throughout the night. The mere possibility of a presence of harmful bacteria means you shouldn't take the risk in trying to revive it.

Can I eat 5 day old leftovers? ›

When it comes to refrigerated leftovers, the USDA says for most food it's best to eat it within three to four days to be safe. And the FDA lays out similar guidance, with a strict four-day maximum for most leftovers.

Is it okay to eat a sandwich left out overnight? ›

Perishable foods, including sandwiches made with deli meats, cooked foods, and cut vegetables, should not be kept at room temperature for more than two hours, or one hour if the temperature is above 90 degrees Fahrenheit [1].

How long can food stay in an insulated lunch bag? ›

Bags with insulation are required to transport hot or cold food. These bags may only last two hours at most since that's when bacteria and other germs are most likely to multiply to potentially dangerous and disease-causing levels. With the right insulation, you can keep your food hot or cold for up to three hours.

Is it okay to eat food left out overnight? ›

Eating food left out overnight is a food safety no-no. No exceptions. So, please make your personal pledge today to NEVER eat it. Even if you're in the habit of doing this and haven't gotten sick yet, it's better to be safe than to take the risk and become terribly ill or lose your life to foodborne illness.

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