Sides that hold for a crowd

By Tim · 26 October 2026 · 9 min read · Last reviewed 28 October 2026

Most barbecue sides are risky foods, including potato, pasta, rice and bean salads, coleslaw, mac and cheese and beans. Keep cold sides at 5°C (41°F) or colder and hot ones at 60°C (140°F) or hotter. In between, the clock runs from when the dish left the fridge: under 2 hours it can go back, after 4 hours it goes in the bin.

On this page · 12 sections

Doesn't need watching

Bread rolls
Crisps
Nuts
Crackers
Some bottled sauces
Hard cheese

Keep it cold

5°C (41°F) or colder

Potato, pasta, rice and bean salads
Coleslaw
Green salad
Cut fruit and melon
Dips
Anything with homemade mayo or aioli

Keep it hot

60°C (140°F) or hotter

Mac and cheese
Baked beans
Rice
Creamed corn
Roast veg
Gravy

Cold or hot, add up every minute a side spends between 5°C and 60°C, starting when it leaves the fridge: under 2 hours, eat it or put it back. 2 to 4 hours, eat it but don't keep it. Over 4 hours, bin it.
Hot day: Queensland Health advises 1 hour once it's over 32°C (90°F).
Hot side dropped below 60°C (140°F)? 4 hours from then, and it's eaten or binned.

Sort your sides into the three columns before the day. Only the cold and hot columns run on the clock.

The clock starts in the kitchen

Every cold side is on a clock from the moment it comes out of the fridge, and that includes the time it spends on the bench while you set up. Australia's 2-hour/4-hour rule adds up all the time a dish has spent between 5°C and 60°C. Under 2 hours you can eat it or put it back in the fridge. Between 2 and 4 hours you can eat it, but it doesn't go back. Over 4 hours, throw it out.

Say the potato salad comes out at 11:30 so you can set the table, and lunch runs from 12:00 to 2:00. By 1:30 it's hit 2 hours, and by the end of lunch it's been out two and a half. So that bowl gets eaten, not saved, even though it was only on the table for two hours.

Write the time on a bit of masking tape on the bowl when it comes out. Saves a lot of guessing at 2 o'clock when everyone's had a beer! For meat I go stricter than the rule. About 30 to 60 minutes is about right, it can get contaminated pretty quickly.

A hot day makes it worse. FSANZ's rule doesn't change with the weather, but Queensland Health's Cairns public health unit says to cut it to 1 hour once it's over 32°C (90°F). So on a hot Central Queensland afternoon, put out smaller bowls and swap them every hour.

Which sides can you stop worrying about?

Not many. Bread, dried food, canned and bottled food, hard cheese, spreads and some sauces are off the risky list, and nuts, crisps and crackers are fine to top up as you go. Everything else on a barbecue table probably isn't.

Food safety people call the rest "potentially hazardous", meaning bacteria can grow in it if it's left warm. That list takes in cooked rice and pasta, salads and any prepared fruit and veg, dairy dishes, and dishes made with egg, beans, nuts or meat. Rockhampton council's outdoor food sheet names prepared salads and coleslaw outright.

A vinegar or lemon dressing doesn't get a salad off the list. Acid slows bacteria down, it doesn't kill them. Cut melon is one people forget, because Listeria can grow on the cut flesh from about 4°C (39°F), so keep a fruit platter in the fridge until it goes out. Pregnant and older guests are advised to avoid cut rockmelon.

Is it the mayo that makes potato salad go off?

Commercial mayonnaise gets the blame, but it's acidic and made with pasteurised egg, and food scientists at the University of Georgia found it actually slowed Salmonella in chicken and ham salads. The risk is the potato, egg, rice or meat it's mixed through, and how long it sits warm. Once mayo is mixed into other food it loses a lot of that acidity anyway, so the salad still lives in the fridge.

Homemade mayo or aioli with raw egg is a different story. That's a Salmonella risk, so keep it refrigerated, never more than 4 hours out in total, and bin whatever isn't eaten within a day. If you've got guests over 60, pregnant, under 5 or unwell, use commercial mayo or pasteurised egg.

Keeping cold sides cold

Leave cold sides in the fridge until the moment they go out. An esky keeps cold food cold, but it can't make warm food cold, so chill everything in the fridge first and then pack it with plenty of ice bricks or frozen drinks.

On the table, sit the serving bowl in a bigger bowl or tray of ice, cover it and keep it out of the sun. Ice helps, though I couldn't find anyone who's measured whether a bowl on ice actually stays at 5°C, so the clock still counts. Put out small bowls and swap them for fresh ones from the fridge. Don't top up a bowl that's been sitting out, because mixing the new with the old doesn't reset anything and it spreads whatever's in the old one. And give every dish its own spoon.

Keeping hot sides hot

Heat the side until it's piping hot all the way through on the stove, in the oven or in the microwave, and at least 60°C on a probe. Then move it into a preheated slow cooker, chafing dish or low oven to hold it. Hot-holding gear is too slow to reheat in, so don't put cold beans in a slow cooker and wait. Reheat once only.

Check the food, not the setting. FSANZ's own example of getting it wrong is a bain-marie of curry and rice sitting at 45°C (113°F). A keep-warm oven should be set to 60°C (140°F), or 100°C (212°F) if that's as low as it goes, and then you probe what's in it. On one of my brisket cooks in July the benchtop oven was set for a 63–65°C (145–149°F) hold and it was actually running at 57.2°C (135°F). I only picked it up from how the meat was cooling, not the dial. Which is why I aim for 63–65°C when I'm holding meat. 60°C is the floor, so a few degrees spare covers you.

If a hot side does drop below 60°C, it gets 4 hours from that moment and then it's eaten or thrown out. Count from the last time you probed it at 60°C or above. So if the beans read 62°C (144°F) at 12:10 and 55°C (131°F) at 12:40, they're done by 4:10. If you've no idea when it dropped, eat it now or bin it.

Rice is the one to take seriously

Cooked rice can carry Bacillus cereus spores that survive the cooking. If the rice cools slowly or sits warm they grow and make a toxin that causes vomiting, and reheating doesn't destroy that toxin. So rice that's been left out can't be rescued by heating it up again. Keep it hot, or cool it fast and get it in the fridge.

Keeping them good as well as safe

The holding that keeps sides safe can wreck them. Mac and cheese dries out and the pasta soaks up the sauce, so cook the pasta a little under, make the sauce looser, or hold the sauce and the pasta separately and mix small batches. Dress leafy salads at the table, because they wilt once they're dressed. Rice, pasta and potato all firm up in the fridge, which is why a potato salad made the day before is firmer than one made that morning.

Some sides can be cooked in the pit instead. On a leg of mutton in August, once the meat was done I used the offset to roast pumpkin slices, hot side, dead centre.

Cooling and leftovers

Anything that's been out of the fridge more than 2 hours in total goes in the bin, not back in the fridge. For leftovers that went back in time, cool them fast. Spread them into shallow containers, under 10 cm (4 in) deep for rice, don't stack them, and sit them in an ice or cold-water bath if you can. Stir the thick stuff.

At your event

Sort your sides into the three columns above before the day.
Keep cold sides in the fridge until they go out, and write the time on the bowl.
Put cold bowls on ice, covered and out of the sun. Swap small bowls, don't top up.
Reheat hot sides on the stove or in the oven first, then hold them, and check them with a probe.
Over 32°C, give risky sides an hour out of the fridge in total.
Cool leftovers fast in shallow containers, and bin anything that's been out past 2 hours.

Quick answers

How long can potato salad sit out at a barbecue?

Add up the time since it left the fridge. Under 2 hours, it can go back in the fridge. Between 2 and 4 hours, eat it but don't keep it. Over 4 hours, throw it out. That's Australia's 2-hour/4-hour rule. On a hot day, Queensland Health advises just 1 hour above 32°C (90°F). Keep the bowl on ice and out of the sun, and swap it for a fresh one instead of topping it up.

Is it the mayonnaise that makes salads go off?

Not if it's commercial mayonnaise. It's acidic and made with pasteurised egg, and food scientists have found it slows bacteria in meat salads. The risk is what it's mixed with, plus time out of the fridge. Homemade mayo or aioli made with raw egg is riskier, so keep it cold, no more than 4 hours out in total, and use it within a day. Either way, a mayo salad lives in the fridge and runs on the 2-hour/4-hour clock.

Can I reheat rice that's been left out?

No, reheating won't make it safe. Cooked rice can carry spores that survive cooking, and if the rice sits warm they grow and make a toxin that heat doesn't destroy. Keep rice hot, at 60°C (140°F) or above, or cool it fast in shallow containers and refrigerate it. Rice that's been out of the fridge more than 4 hours in total goes in the bin.

For the curious

The official term for a risky food is potentially hazardous food, from FSANZ's temperature control fact sheet. The time rules are on FSANZ's 2-hour/4-hour rule and cooling and reheating pages, and the 4 hours for hot food that drops below 60°C is in Appendix 2 of Safe Food Australia (2023). The hot-weather hour is from the Cairns and Hinterland public health unit's Christmas food safety release (2025). The rice bug is Bacillus cereus (HealthyWA) and the melon one is Listeria monocytogenes. Raw-egg advice is from Queensland Health and WA Health. The mayo work was Doyle and Harrison's reported by the University of Georgia in 1997. Rice and potato firming up in the fridge is retrogradation, the starch re-setting, measured in rice by Chakraborty et al. 2023. The 2-hour/4-hour rule is written for food businesses, but Queensland Health's Townsville public health unit gives the public the same rule.

If you're between Rockhampton and Bundaberg and would rather someone else stood at the pit for your next event, that's what I do. Get a rough price →