The May Power Cut: What to Keep, What to Cook, What to Throw

Item	Decision	Reason
Milk boiled at 8 a.m.	Keep by reboiling twice more (around 11 a.m. and 5 p.m.), or set it as curd at 11 a.m.	It is high-moisture and near-neutral, so bacteria multiply fast; reboiling kills live bacteria and resets the clock. If it smells sour or has curdled, throw it out. Use the malai for ghee.
Cooked toor dal from Friday night	Reheat to a rolling boil and use at lunch; do not hold it for dinner	It has already spent a night warm; one thorough reheat buys time but does not sterilise it. Any sour smell, stickiness or bubbling means discard.
Cooked rice left overnight on the counter	Throw away	Warm, moist cooked rice favours Bacillus cereus; its toxin is heat-stable, so even frying or reboiling will not make it safe. This is the one item where reheating gives false reassurance.
Spinach bought at 7 a.m.	Wash well and cook at lunch; blanch if it must wait	Tender leaves wilt and rot quickly in heat; cooking it now preserves it better than storing it. Slimy leaves or an off smell mean discard.
Paneer bought yesterday	Use immediately as a cooked dish at lunch	High protein and high moisture - the best food for bacteria. The smell and sourness test decides; do not hold it for dinner.
Lemon pickle with a white ring	Keep if the film is only on the surface, the brine smells sour and clean, and there is no fuzz; remove the top layer and top up with oil and salt. Discard the whole jar if there is green, black or blue mould, or a musty smell	Acid, salt and the oil layer protect it; surface yeast is common and does not penetrate. Fuzzy mould means toxins can spread through the liquid, so removing the top is not enough.
Chopped onion and coriander	Throw away	Cut surfaces, high moisture and hours at 41 °C make it a bacterial culture; there is no cooking step that will make it worth the risk.

The governing idea: no cold storage means the family must eat in the order of perishability and cook small quantities rather than store large ones.

The factors are moisture, temperature and time, acidity, and the availability of oxygen or a protective layer (salt, sugar, oil).

• Moisture: bacteria need water. Milk, dal, paneer and chopped onion are all high-moisture; pickle is preserved largely because salt and oil reduce the water available to microbes.
• Temperature and time: between roughly 5 °C and 60 °C bacteria multiply fastest, and at 41 °C the kitchen is right in that band. Every hour counts.
• Acidity: the lemon pickle is protected by its low pH, which is why it can sit outside a refrigerator while milk cannot.
• Oxygen barrier: the oil layer on the pickle keeps air away from the surface, which is why spoilage appears as a surface film first.

Why milk and rice differ: reboiling kills live bacteria, and while it cannot sterilise, it repeatedly knocks the population back down - so reboiling works when the problem is growing bacteria. It fails when the problem is something the bacteria have already left behind. Cooked rice kept warm for hours allows Bacillus cereus to multiply and release a toxin that survives boiling, so no amount of reheating removes the danger. The same logic explains why mouldy pickle cannot be saved by washing: it is the toxin, not the visible mould, that matters. So the rule is: reheat to buy time against live organisms; discard when a heat-stable toxin or mould may already be present.

The cut finger:

1. Stop handling food. Wash hands with soap and running water, and let the wound bleed briefly under the tap to flush it.
2. Press a clean cloth on it for about five minutes until bleeding stops; hold the hand slightly raised.
3. Cover with a clean, dry bandage or a clean cloth. If the cut is deep, bleeding does not stop, the blade was rusty or glass, or tetanus cover is uncertain, go to the health centre the same day.
4. Keep it covered while cooking; if a waterproof dressing is not available, that person should not handle food at all. Do not dip the bandaged finger into the pickle jar.
5. Do not apply mud, ash, toothpaste, turmeric paste or a dirty cloth - these are the standard causes of infection.

Cross-contamination:

• The knife and board that touched raw spinach carry soil bacteria; the chopped onion and coriander may also have been handled with the cut finger. Discard the onion-coriander bowl and wash the board and knife with hot soapy water, then dry them in the sun.
• Use one board for raw vegetables and a separate one (or wash in between) for cooked dal and paneer - cooked food must never meet the utensils used for raw food.
• Wash hands after handling raw vegetables, after the cut is dressed, and before serving.
• Cover the cooked dal and rice while they are hot, and serve with a clean spoon rather than fingers, especially with an open wound in the house.

The judgement is that a small cut is a food-safety event, not just a first-aid event: the household must decide who touches food for the next two days.