Leftover pho keeps for 3 to 4 days in the fridge at 40 F (4 C) or below. Count from the day it was cooked or served.
USDA FSIS and the FoodSafety.gov cold food storage chart set that limit for soups and cooked meat. It holds only if the bowl got into the fridge within 2 hours of cooking.
People ignore it a lot. In USDA consumer research, 31% of participants said they would eat leftovers kept longer than four days (USDA FSIS, 2021).
Broth carrying food poisoning bacteria looks and smells the same as broth that isn’t. So the day count decides when leftover pho goes in the bin, and the nose doesn’t get a vote.
How long does pho last in the fridge?
The federal window is 3 to 4 days at 40 F (4 C) or below, measured from the day the pho was cooked or served. Soups and cooked meat share that limit, and a bowl of pho is both.
The other numbers that go with it come from the same sources.
- 3 to 4 days for soups and stews with meat or vegetables added (FoodSafety.gov cold food storage chart, reviewed September 2023)
- 2 hours from cooking to the fridge, or 1 hour when the room is above 90 F (USDA FSIS)
- 165 F (74 C) internal temperature when reheating (USDA FSIS)
- 2 to 3 months in the freezer for the same soup category, which is a quality limit and not a safety one
Home refrigerators should sit at 40 F under USDA guidance. The 2022 FDA Food Code uses 41 F (5 C) for cold holding in food establishments, so a unit reading 41 F meets the commercial standard but runs one degree above the home guidance.
Beef and chicken versions get the same window, since the chart puts cooked meat and poultry on one line. How beef and chicken pho differ changes the flavor and the broth. It doesn’t change the fridge clock.
The count starts on the day the pot was cooked or the bowl was served. It doesn’t start on the day the leftovers looked worth saving.
An assembled bowl is only as durable as its shortest-lived part. Rice noodles age faster than the broth. So do raw garnishes, and any slices that went in uncooked.
Some pho guides stretch the window to 3 to 5 days. In the same FoodSafety.gov chart, that line belongs to opened luncheon meat and fresh steaks, not to soup.
How long does each part of pho last?
No single number fits a bowl that mixes simmered broth, boiled noodles, thin meat and raw herbs. The cooked parts share the 3 to 4 day ceiling. Raw garnishes have no cooked-food window at all.
| Component | Fridge window | What limits it | Storage move |
|---|---|---|---|
| Broth with meat or vegetables | 3 to 4 days | Slow cooling in a deep pot | Shallow containers, lid on once cold |
| Cooked rice noodles | 3 to 4 days | Texture first, then starch-related bacteria | Drain, keep apart from broth |
| Cooked beef or chicken | 3 to 4 days | Same risks as any cooked meat | Airtight, apart from broth |
| Plain strained broth | 1 to 2 days (2006 chart) or 3 to 4 days (soups) | Sources disagree | Plan on 2 days, freeze the rest |
| Raw herbs, sprouts, lime | No cooked-food window | Wilting and slime | Dry, separate, discard when limp |
The broth disagreement is real. The Minnesota Department of Health’s 2006 consumer chart lists gravy and broth at 1 to 2 days, while the 2023 FoodSafety.gov chart gives soups and stews with meat or vegetables 3 to 4 days.
It comes down to what is in the pot. The older chart files strained broth with gravy, and a pot that still holds meat and vegetables counts as a soup.
Pho broth falls in between once the bones are strained out. I’d take the shorter window.
Cooked rice noodles go soft and sticky long before they turn unsafe, because they keep absorbing liquid. The flat rice noodles used in pho hold up better when they’re drained, kept dry, and dunked in hot water right before serving.
Raw garnishes aren’t cooked leftovers, so no federal chart gives them a day count. Bean sprouts and Thai basil wilt first, and wilting is your cue to toss them.
Don’t store an assembled bowl. The noodles swell, the herbs rot, and the whole thing inherits the shortest clock.
How to cool and store pho so the fridge clock starts safely
Divide the pho into shallow containers and refrigerate it within 2 hours of cooking, or within 1 hour when the room is above 90 F. USDA FSIS applies the same limit to restaurant leftovers and to food taken off a warming appliance.
Advice splits on whether hot broth can go straight into the fridge. FSIS leftovers guidance (page updated July 2020) says hot food can go directly into the refrigerator, or into an ice or cold water bath first, with no wait for room temperature.
Plenty of pho guides still say to cool the pot on the counter. The worry behind that is fair, since a deep hot pot cools unevenly and warms the shelf around it. The fix is dividing the pot, not waiting.
Homemade pho
- Strain the broth, drain the noodles and pull the meat out so each part is on its own.
- Pour the broth into shallow containers. Austin Public Health’s 2023 cooling guide sets 4 inches as the maximum depth for thin liquids and 2 inches for thick foods, and notes that metal pans cool faster than plastic.
- Set the containers in an ice bath (a sink or large bowl of ice and cold water) and stir every 10 minutes until the steam stops.
- Leave lids loose while the broth chills, then seal everything airtight and refrigerate.
- Label each container with the cooking date and check the fridge with an appliance thermometer.
For a day-by-day look at containers and labeling, there is a longer guide to storing pho at home.
Takeout and restaurant pho
The 2-hour clock started in the restaurant kitchen. A long delivery route or a slow dinner uses up part of the window before the bowl ever reaches your fridge.
If the container sat out past 2 hours (1 hour above 90 F), it goes in the bin.
If not, tip the broth out of the deep takeout tub into shallow containers. FSIS warns that a big pot of soup takes a long time to cool, and a full quart tub behaves the same way.
Date it from the order, not from the night you decided to save it.
How can you tell if pho has gone bad?
A sour smell, slimy noodles or mold mean it has spoiled. A bowl with none of those can still be unsafe, though, because smell catches spoilage bacteria and misses the ones that cause food poisoning.
Signs that mean discard
- A sour, sharp or otherwise off smell
- Slimy noodles or meat
- Mold, fuzzy spots or a color change
- Anything past day 4, whatever it looks like
USDA FSIS consumer guidance separates two families of bacteria. Spoilage bacteria cause the slime and the smell. Pathogenic bacteria cause illness, and they often change nothing you can see.
Normal changes in cold broth
Cold broth that looks strange is usually fine.
Long-simmered bones leave dissolved collagen, which sets into a gel once the broth chills. The fat rises and hardens into a pale layer on top, sometimes in flakes that look like curds.
Both dissolve when the broth is reheated. Spooning the fat off is a matter of taste and has nothing to do with safety.
Why a clean-looking bowl can still be unsafe
CDC’s September 2026 update puts Clostridium perfringens at nearly 900,000 US food poisoning cases a year, mostly from food cooked in large batches and held between 40 F and 140 F.
A pot of pho fits that profile: big batch, meat, broth, slow to cool. FSIS says bacteria can double in as little as 20 minutes inside that temperature range.
Starchy leftovers carry a second risk. A 1994 CDC report described a 1993 outbreak at two Virginia day care centers, traced to chicken fried rice made with rice that was cooked the night before and cooled at room temperature before refrigeration. The fried rice was held without refrigeration and served without reheating.
The report notes that Bacillus cereus spores can survive cooking. When cooked rice sits at room temperature, the bacteria multiply and produce a heat-stable toxin that survives brief heating, such as stir-frying. Rice noodles belong to the same group of starchy foods.
Refrigeration slows most bacteria but does not stop all of them. USDA FSIS names Listeria monocytogenes as the notable exception that keeps multiplying at refrigerator temperatures.
So go by the calendar. Smell only tells you about spoilage.
How to reheat leftover pho
Bring the broth to a rolling boil in a pot, then use it to heat the noodles and meat in the bowl. Herbs, sprouts and lime go on cold at the end.
USDA FSIS tells home cooks to reheat soups to a rolling boil with the pot covered, and to check solid leftovers with a food thermometer until they read 165 F (74 C).
- The broth goes in a covered pot, stirred now and then, until it boils hard across the surface.
- Noodles loosen up in the boiling broth and should be steaming through before you eat.
- Cooked meat heats in that same broth, and you probe the thickest slice.
- Garnishes never get reheated. They go on cold at the table.
A microwave works if you respect its limits. FSIS warns that microwave ovens heat unevenly and leave cold spots where bacteria survive, so cover the bowl, stir halfway, let it stand, and probe several spots.
For pho, the stovetop wins. A pot gives the broth a true boil, and boiling is the one reheating instruction FSIS gives specifically for soup.
Can you freeze pho?
Yes, but only the broth and the cooked meat. Noodles and raw garnishes lose too much in the freezer to be worth the space.
| Part | Freezer verdict | Reason |
|---|---|---|
| Broth | Freeze | Safe at 0 F, quality is the only limit |
| Cooked beef or chicken | Freeze | Same quality-only limit |
| Cooked rice noodles | Skip | Turn mushy after thawing |
| Raw herbs, sprouts, lime | Skip | Go limp and watery |
FSIS states that food held constantly at 0 F (-18 C) stays safe, so freezer times describe quality and not safety.
Federal sources give different freezer times. FSIS general leftovers guidance gives 3 to 4 months frozen, while the soup line of the FoodSafety.gov chart runs shorter, at 2 to 3 months. Both measure quality, so the gap changes flavor and leaves risk alone.
Freeze on day 1 or 2, not day 4. FSIS says food frozen at peak quality thaws tasting better than food frozen near the end of its useful life, and freezing only puts bacteria on pause.
Leave headspace in the container, because liquid expands as it freezes. The National Center for Home Food Preservation suggests at least 1½ inches for mostly liquid soups. Pantry and Larder’s rice noodle guide warns that cooked noodles go mushy after freezing, so cook fresh noodles when the thawed broth goes back on the stove.
- Thawing in the refrigerator is slowest, but it stays safe the whole time.
- Cold water is faster. Use a leak-proof bag, and cook the food before refreezing.
- The microwave is fastest, and the food needs to be heated to 165 F straight afterward.
Broth thawed in the fridge gets 3 to 4 more days or can go back in the freezer, according to FSIS. Frozen soup also reheats straight from the freezer in a saucepan, just more slowly.
When the usual fridge window does not apply
The day count assumes the pho cooled on time, the fridge ran at 40 F or below, and the person eating it is a healthy adult. Break any of those and the count stops being reliable.
Raw slices cooked by the broth
Raw tai slices are meant to finish cooking in the bowl. In a home test by ThermoWorks, the broth cooled on contact with the bowl and still brought the beef to medium-well.
USDA’s minimum for beef steaks and roasts is 145 F with a 3-minute rest, and slices in a home bowl rarely get probed. One packaging-supplier guide (KimEcopak) says never to refrigerate a bowl with raw-added slices, and the federal pages don’t address the case. The conservative rule is to finish that bowl tonight.
Time out of the fridge
FSIS and Michigan State University Extension (2022 revision) tell takeout buyers to refrigerate within 2 hours of purchase or delivery, and within 1 hour above 90 F. Hot food has to stay at 140 F or above until it is eaten or chilled.
A bowl that arrived steaming hasn’t logged any danger-zone time yet, and one that arrived lukewarm has. Overnight on the counter is far past either limit, whatever it smells like.
A fridge that runs warm
ZERO2FIVE’s 2024 research in Wales found 71% of household fridges above 41 F (5 C), with 37% at 50 F (10 C) or higher. US figures run lower, with as many as 43% of home refrigerators above 40 F according to FDA’s Center for Food Safety and Applied Nutrition, as cited by Ohio State Extension.
Different countries and samples explain the gap, so read both as a warning and not a forecast. An appliance thermometer settles it, and without a reading the day count is a guess.
Higher-risk eaters
CDC lists adults 65 and older, children under 5, people with weakened immune systems and pregnant people as more likely to get seriously ill from food poisoning. Pregnant people are 10 times more likely to get a Listeria infection, per CDC.
The FSIS leftovers page gives one 3 to 4 day line with no separate limit for these groups, so any extra margin is a judgment call. Mine would be to serve them pho from day 1 or 2 only, or from the freezer.
Outside those cases, the 3 to 4 day count stands.
Leftover Pho FAQ
Can you reheat pho twice?
No, not as a habit. Reheating and re-chilling the same pot sends it through the 40 to 140 F danger zone again, and the day count still runs from the original cook date.
Ladle out only the portion you plan to eat.
Can you leave oxtail or brisket in the broth when storing pho?
No. FSIS says large items cool slowly and should be cut into smaller portions, so a whole oxtail or brisket chunk holds heat in its center.
Slice the meat, store it apart from the broth, and chill both in shallow containers.
Is it fine to keep pho in the original takeout container?
Yes, when the container is shallow, airtight and in the fridge within 2 hours (1 hour above 90 F). FSIS wants leftovers covered or sealed to keep bacteria out and odors off.
A loose lid or a deep tub of broth fails that test.
How soon do symptoms start if leftover pho makes you sick?
With Clostridium perfringens, diarrhea and stomach cramps usually start within 6 to 24 hours of eating and last about a day, according to CDC.
Contact a health care provider for diarrhea or vomiting lasting more than 2 days, bloody stool or urine, a fever above 102 F, or signs of dehydration.
Splitting a Big Pot of Pho Between Fridge and Freezer
Refrigerate only the pho you will finish within 3 to 4 days of cooking, and freeze the surplus broth and cooked meat the same day or the next.
Order matters here, because fridge days spent before freezing get subtracted afterward. NC State Extension (2024) says soup frozen after 2 days in the fridge should be used within 1 to 2 days of thawing, a tighter reading than FSIS gives for fridge-thawed food.
- Portion the freezer batch first, on cooking day
- Chill the fridge batch in shallow containers
- Write a finish-by date on every lid
The catch is that noodles get cooked fresh for each thawed bowl. That costs one extra pot of boiling water, and in return the broth keeps both its quality and its day count.
The day counts here follow the FoodSafety.gov chart as reviewed in September 2023, verified October 20, 2026. A revised chart changes every number.
