Extra puris from the kanya pujan. Half a kadhai of chole. A dabba of halwa that nobody finished. In most Indian homes, the festive season ends with a fridge full of leftovers, and some of it goes into the bin. UNEP estimates that Indian households waste about 55 kg of food per person every year, including inedible parts like bones and rinds, or roughly 7.8 crore tonnes in total, according to its Food Waste Index Report 2024.
So how long can cooked food be kept at room temperature? ICMR-NIN, India's national nutrition institute, gives four simple rules in its Dietary Guidelines for Indians (2024):
- Eat cooked food within 4 to 6 hours of making it. If it has been sitting out, heat it well before you eat it.
- Keep your fridge below 5°C. Store food in small portions, in boxes with lids.
- Keep food either hot (above 60°C) or cold (below 5°C). Most germs grow between 5°C and 60°C.
- Heat refrigerated food well before eating, but don't heat the same food again and again.
What does World Food Day have to do with your kitchen?
World Food Day is on 16 October. This year's theme is "Innovate today. Nourish tomorrow.", says the FAO.
Most of the world's food waste happens at home. In 2022, the world wasted 1.05 billion tonnes of food, and 60% of it was wasted in homes, according to UNEP. Homes threw away more than 1 billion meals a day, while 783 million people went hungry.
UNEP also found that people in hotter countries seem to waste more food at home. One likely reason is that they eat more fresh food and have weaker cold chains. India fits that picture. Food spoils faster in a warm kitchen, and between Navratri and Diwali, most of us cook more, host more and have more left over.
How long can cooked food be kept at room temperature in India?
The answer is 4 to 6 hours. ICMR-NIN says you should eat cooked food within 4 to 6 hours of making it, and if it has been left at room temperature, heat it well before eating, as per its 2024 guidelines.
Why the time limit? When cooked food stays warm for hours, bacteria grow and make toxins. Eating that food can make you sick. The same guidelines name cooked rice that has been stored badly, and milk products like khoa, as foods that carry more risk.
Think of dal cooked at 1 pm and left on the stove until 10 pm. That is 9 hours, well past the 4 to 6 hour window ICMR-NIN gives. When food has sat out that long, the safest choice is not to eat it. If food has to wait, keep it hot, or cool it and put it in the fridge.
A big pot cools slowly. To speed it up, divide the food into smaller, shallow boxes before it goes into the fridge. This also matches ICMR-NIN's advice to store cooked food in small portions with lids.
How long can cooked food stay in the fridge?
ICMR-NIN does not give a fixed number of days for each dish. It does say that even food kept in the fridge goes stale if it is stored too long. The fridge slows spoilage down. It does not stop it.
These are the fridge rules from the ICMR-NIN guidelines:
- Keep the temperature below 5°C.
- Keep raw and cooked food in separate compartments.
- Use boxes with lids, and store food in small portions.
- Clean the fridge once every two weeks.
A simple habit helps: eat leftovers at the next meal or the one after that. Write the cooking day on the box, or stick a note on it, so nothing gets lost at the back of the fridge.
Which festive leftovers should you keep, and which should you throw away?
Use this table as a quick guide. If you are not sure whether something is still good, throw it away. A stomach upset is not worth saving one bowl of food.
When you reheat, heat the food well, and only heat the amount you are going to eat. Put the rest back in the fridge. ICMR-NIN advises against heating the same food again and again.
If you have oil left in the kadhai after frying pakode, read can you reuse cooking oil after frying. For sweets from a shop, our guide on how to check fake khoya and mithai tells you what to look for.
How can you waste less food at home this festive season?
Storing food safely is one part. Wasting less in the first place is the other. These small steps help:
- Cook for the people who are coming. Count your guests before you knead the atta. You don't need to cook for twenty when ten are expected.
- Use leftovers in a new dish. Leftover rice can become lemon rice. Rotis can become roti upma. Dry sabzi works well as paratha stuffing, and leftover dal can go into dal parathas.
- Label what you freeze. Write the date on it and use the oldest food first.
- Share it while it is fresh. If you have extra, offer it to neighbours and friends on the same day, not two days later.
- Donate surplus from big functions. FSSAI's "Save Food, Share Food" initiative supports the safe donation of surplus food. Its network of 82 food distribution agencies covered over 100 districts and had donated over 50 million meals, as per figures on FSSAI's Eat Right India page.
Once the festivals are over, our free 4-week Indian diet plan can help you get back to simpler meals.
Frequently asked questions
How long can cooked food be kept at room temperature?
ICMR-NIN says to eat cooked food within 4 to 6 hours of making it. If it has been left out, heat it well before eating.
Can I eat leftover rice the next day?
If you want to keep rice, cool it quickly, put it in the fridge, and heat it well before eating. ICMR-NIN lists badly stored cooked rice as a food that can cause food-borne illness, so don't eat rice that has been left out for hours.
Is it safe to reheat food more than once?
ICMR-NIN advises against heating the same stored food again and again. Heat only the portion you are about to eat.
What temperature should my fridge be?
Below 5°C, as per ICMR-NIN. Most germs grow between 5°C and 60°C, so food should be kept either colder or hotter than that.
If you're stocking up for the festive weeks, you can find Amaayu's functional waters on our products page.
This article is general information, not medical advice.
