How Long Can You Safely Keep Rice Salad? Find Out Now!

Rice, some diced tomatoes, a can of tuna, and corn… In the summer, you whip up this salad repeatedly. It’s easy to make, healthy, and convenient for picnics, so it’s a real crowd-pleaser. Therefore, to save time, you often prepare it in large batches: “That way, it’s done and lasts the whole week!” you think to yourself. However, this is misguided: health authorities caution that a salad with cooked rice does not last as long as many websites suggest. While many sources claim it can be kept for 3 to 4 days in the fridge, this is too long! Even if stored cold and without any foul smell, rice can still pose a risk of food poisoning. To avoid this, there is a specific timeframe you should not exceed.

It’s the leading cause of collective bacterial food poisoning incidents in France. In 2022, it was responsible for nearly 4,000 cases and 86 hospitalizations, reports the French Agency for Food, Environmental and Occupational Health & Safety (ANSES). The culprit is bacillus cereus, a bacterium naturally found in rice. This bacterium is “inactive” when the rice is dry, but it can become active again when cooked: with the heat, moisture, and starch content of the rice, its spores can germinate and produce toxins over time.

Thus, a rice salad, even if refrigerated right after preparation, should not be kept for too long, explains naturopath Aurélie Canzoneri, who advises consuming it within 24 hours: “This is a rule of food microbiology, not just a precautionary principle,” the expert emphasizes. And reheating the rice to “kill the bacteria” is futile: the spores that cause the toxins are resistant to heat, even at 100°C. Additionally, dressing the salad with vinaigrette doesn’t make it safer. While vinegar or lemon juice can inhibit the growth of certain bacteria due to their acidity, they do not destroy the spores of Bacillus cereus or the toxins they may produce. To minimize risks, it’s best to cool the rice quickly and then refrigerate it within an hour after cooking. If you have prepared too much, freeze the excess instead of keeping it in the fridge for several days.

Next time you make a rice salad, resist the urge to prepare multiple days’ worth. It’s better to cook just enough, or freeze any leftovers right away. This simple precaution can prevent food poisoning… allowing you to enjoy your summer meals with peace of mind.