Cold Brew Nutrition: Caffeine, Calories & How It Compares

Cold brew calories and cold brew caffeine are the two things new drinkers ask about most. How does a cup stack up against espresso, drip coffee, chai or Red Bull? How many calories does milk, sugar or jaggery add? This guide gives every number, and names where each one comes from.

How Much Caffeine Does a Cold Brew Have?

A 240 ml cup of cold brew has roughly 160 to 295 mg of caffeine when you drink it straight at a 1:10 to 1:15 ratio. Lab tests of 1:10 cold brew found 990 to 1,230 mg of caffeine per litre (Fuller and Rao, Scientific Reports, 2017). Diluted 1:1, that 1:10 brew drops to about 120 to 150 mg a cup. Hot drip coffee has about 95 mg per 240 ml.

Cold brew caffeine surprises most people. You might expect cold water to pull out less, but the secret is the ratio. Cold brew uses about 67 to 100 grams of coffee per litre, a 1:10 to 1:15 ratio. Hot drip coffee, going by the USDA reference value, ends up with about 400 mg of caffeine per litre. That is well under half of what a 1:10 cold brew holds.

The long steep matters less than you think. In the Fuller and Rao tests, caffeine was fully pulled out after about 6 to 7 hours. Steeping longer changes the flavour, not the caffeine. Hot water does the job in about 4 minutes. It also pulls out more titratable acid. But the pH of hot and cold brew was about the same, 4.85 to 5.13 (Rao and Fuller, 2018). So cold brew tastes softer, but it is not acid-free.

When you dilute a 1:10 brew 1:1 with water or milk, you get about 120 to 150 mg per cup. That is a bit more than a hot cup of coffee. A concentrate, at 1:4 to 1:5, uses even more coffee. No study we found measured its caffeine. But it has to be above the 240 to 295 mg of a 1:10 brew. So one straight glass of concentrate is over the 200 mg single dose that EFSA calls safe for adults. The bean matters too. In a 2021 review of caffeine studies, the strongest brews were made with robusta (Olechno and others, Foods, 2021).

Key fact: At the same 1:10 ratio, cold brew had 990 to 1,230 mg of caffeine per litre and hot brew had 840 to 1,060 mg (Fuller and Rao, Scientific Reports, 2017). So cold brew's extra caffeine comes from using more coffee, not from the cold water.

How Does Cold Brew Caffeine Compare With Espresso, Chai and Red Bull?

A 240 ml cup of cold brew, drunk straight, has about 160 to 295 mg of caffeine. A 30 ml espresso shot has about 63 mg. Drip coffee has about 95 mg per 240 ml. Instant coffee has 30 to 90 mg. A 250 ml can of Red Bull has 80 mg. Indian chai has 25 to 50 mg. Per rupee, homemade cold brew is close to home drip coffee, and gives 8 to 10 times more caffeine than Red Bull.

The numbers tell a plain story. Homemade cold brew and home drip coffee give about the same caffeine per rupee when you use the same beans. Cafe espresso costs 6 to 15 times more per milligram of caffeine. Red Bull costs 8 to 10 times more. Caffeine figures: USDA FoodData Central for espresso, drip, instant, black tea and green tea; EFSA for the 250 ml energy drink; Fuller and Rao for cold brew. Cold brew cost uses Cothas Coorg robusta at Rs 801 for 500 g (September 2026) and our own batch sizes.

How Many Calories Are in Cold Brew?

Black cold brew has about 2 to 5 calories per 240 ml cup. Adding 50 ml of toned milk brings it to about 30 to 35 calories. Two teaspoons of sugar add about 32 calories. Two tablespoons of condensed milk add about 123 calories. Ten grams of jaggery add about 38. The base drink is nearly zero-calorie. The milk and sweetener are what count.

I tried all these combinations during a month of daily cold brew. The calorie numbers above are worked out from USDA values and pack labels, not measured. The condensed milk version tastes incredible but adds about 123 calories per cup. If you drink two cups a day, that is about 246 extra calories - nearly a small meal.

How Many Calories Are in Homemade Cold Coffee (200 ml)?

A 200 ml glass of homemade cold coffee has about 115 to 130 calories with toned milk, or about 185 calories with full cream milk. That is for 150 ml of milk, 2 teaspoons of sugar, 1 teaspoon of instant coffee and ice. Cold coffee is mostly milk, so the milk and sugar give almost all of its calories.

Cold brew and cold coffee are not the same drink. Cold brew is coffee steeped in cold water, drunk black or with a splash of milk. Indian cold coffee is mostly milk, blended with sugar and coffee. A scoop of ice cream on top adds more calories still.

Here is how one 200 ml glass adds up. 150 ml of toned milk gives about 77 to 94 calories, from USDA values for 2% and 3.25% milk. Full cream milk gives about 150. Two teaspoons of sugar give about 32. One teaspoon of instant coffee gives about 4. For the recipes themselves, see our cold coffee recipe guide. For milk ratios in cold brew, see best milk for cold coffee and cold brew.

Is Cold Brew Good for Weight Loss?

Black cold brew has just 2 to 5 calories per cup, one of the lowest-calorie caffeine drinks there is. A regular Indian chai with milk and sugar has about 70 to 100 calories. Switching two daily chais to two black cold brews saves about 130 to 190 calories a day. On paper that is 0.5 to 0.7 kg a month, but real weight loss is slower than the paper sum.

The math is simple. Most of us drink 2 to 3 cups of tea or coffee a day. A 150 ml cup of chai, with about 75 ml of milk and 2 teaspoons of sugar, has about 70 to 100 calories. Switch to black cold brew and you save about 65 to 95 calories per cup.

At two cups a day, over 30 days, that adds up to 3,900 to 5,700 fewer calories. The old rule of thumb of 7,700 calories per kg turns that into 0.5 to 0.7 kg. Real bodies lose weight more slowly than that rule says. A Lancet model found body weight takes about a year to settle after a change in how much you eat (Hall and others, 2011). So think of it as a small, steady help, not a fast fix.

The catch? Most people do not drink cold brew black. They add milk, sugar, or both. A cold brew with 50 ml toned milk and 2 teaspoons of sugar has about 60 to 70 calories - close to a light chai. For weight loss, the key is to drink it black or with just a splash of milk.

WHO guideline: The World Health Organization advises keeping free sugars under 10% of daily energy. It says going below 5%, roughly 25 grams or 6 teaspoons a day, gives extra health benefits (WHO guideline on sugars intake, 2015).

How Much Cold Brew Can I Drink in a Day?

Most healthy adults can drink 1 to 2 cups (240 ml) of cold brew a day. EFSA, the European food safety agency, says up to 400 mg of caffeine a day from all sources is safe for healthy adults, with single doses up to 200 mg. Pregnant and breastfeeding women should stay under 200 mg a day, about 1 cup of cold brew diluted 1:1. Cold brew is not a drink for children or teenagers.

Here is the breakdown by group, from EFSA's 2015 opinion on caffeine safety:

One thing I have learned from a year of cold brew: timing matters as much as quantity. I stop drinking cold brew after 2 PM. Caffeine has a half-life of 3 to 6 hours (Annals of Pharmacotherapy, 2008). So a 200 mg cup at 3 PM still leaves roughly 30 to 80 mg in your body at 11 PM. In a sleep study, 400 mg of caffeine taken 6 hours before bed still disturbed sleep (Drake and others, 2013).

Is Cold Brew Cheaper Than Red Bull for the Same Caffeine?

Yes. Homemade cold brew costs about Rs 31 to 47 per 240 ml cup and gives about 160 to 295 mg of caffeine. A 250 ml Red Bull costs about Rs 125 and gives 80 mg. So cold brew gives 2 to 3.7 times the caffeine at a quarter to three-eighths of the price. Per rupee, cold brew gives about 5 to 6.3 mg of caffeine, against Red Bull's 0.64 mg.

This comparison is not even close. Let me break down the yearly cost:

Homemade cold brew saves you about Rs 28,000 to 34,000 a year compared to a daily Red Bull. That is enough to buy 19 to 22 InstaCuppa Cold Brew Makers at Rs 1,499. Or, you know, a nice holiday. The Monster figure is for the Indian 350 ml can, whose label lists caffeine at 0.03%, or 105 mg.

The InstaCuppa 2.2L pitcher makes about six 300 ml glasses per batch. Our elaichi cold brew guide uses 147 g, 184 g or 220 g of coffee for light, medium or strong. At Rs 801 for 500 g of Cothas Coorg robusta (September 2026), that is Rs 235 to 352 a batch. That works out to Rs 39 to 59 a 300 ml glass, or Rs 31 to 47 a 240 ml cup. Cheaper beans bring it down. Arabica from Chikmagalur, at Rs 1,431 for 500 g from the same seller, pushes it to about Rs 56 to 84 a cup.