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Milk based drinks

How long does Doodh soda last?

Quick answer

Doodh soda is meant to be drunk right away. No official shelf life exists for it, and it is made fresh per glass. The fizz fades within minutes to hours, and the milk can curdle with the acid in the soda. If you must keep it, refrigerate it for no more than a few hours and discard it if it smells sour or looks clumpy.

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In this article
  1. How long does doodh soda last?
  2. Why it should be drunk fresh
  3. How to make it
  4. Can you store it?
  5. Other notes

How long does doodh soda last?

Not long. Doodh soda, a summer drink from Pakistan’s Punjab, is a glass of milk mixed with club soda or a lemon-lime soda and usually a flavored syrup. Reports describe it as made fresh and served with ice, and none give a storage time. We found no food-safety guidance for the mixture, so the advice here is cautious general practice, not an official figure: drink it right away.

Why it should be drunk fresh

  • Fizz fades: the carbonation is half the appeal and disappears quickly in an open glass or a jug.
  • Milk can curdle: soda is acidic, and acids lower the pH of milk so the proteins clump. Food writers note this is not inherently dangerous but unappealing, and a dietitian quoted by Gulf News says unequal proportions can cause clotting in the stomach.
  • Milk is perishable: milk left at room temperature should not sit out for more than a couple of hours.

How to make it

A recipe described in a Gulf News report uses 1 to 2 tablespoons of flavored syrup such as Rooh Afza, half a cup of cold milk and half a cup of club soda or a lemon-lime soda. Pour the syrup in a tall glass, stir in the milk, then add the soda slowly. Serve with ice.

Can you store it?

  1. Best: mix single glasses to order.
  2. If preparing ahead, keep milk and syrup chilled and add the soda just before serving.
  3. If a mixed glass has to wait, refrigerate it and drink it within a couple of hours.
  4. Throw it out if it smells sour, looks lumpy, or has been out of the fridge for hours.

Other notes

It contains sugar and dairy, and some people feel bloated with milk plus carbonation. It is a treat, not a daily drink. This is general information, not medical advice.

People also ask

Can I make doodh soda ahead of time?

Not really. Prepare the milk and syrup ahead, chilled, and add soda just before serving so it stays fizzy and does not curdle.

Why does doodh soda curdle?

Soda is acidic, which makes milk proteins clump. Mix equal parts, use cold milk and drink right away.

Can doodh soda go bad?

Yes, because it contains milk. Refrigerate any leftover for only a short time and discard it if it smells sour or looks clumpy.

General information only, not medical advice. If you have a health condition or are pregnant, ask your doctor before changing what you drink.

Sources

  1. Gulf News: Doodh soda, the Pakistani summer drink, read 5 Nov 2026
  2. Food Republic: What happens if you mix soda and milk, read 5 Nov 2026
Written by Drinks Type Editorial Team · Published Oct 4, 2025 · Updated Nov 5, 2026
About · How we verify this · Editorial policy · Corrections

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