How Much Caffeine Is in Cold Brew? (By Brand, Size & Brew Method)

If you've ever wondered how much caffeine is in cold brew coffee, you're asking a common question, and the answer isn't simple: cold brew caffeine ranges from 100mg to 320mg+ per serving, depending on the brand, brew ratio, steep time, and whether the final product is diluted.

How Much Caffeine Is in Cold Brew?

A typical 12 oz cold brew contains 150–250mg of caffeine, though the range across the category runs from 100mg to 320mg per serving. The spread comes down to the coffee-to-water ratio, how long the grounds steep, the bean used, and whether the brand dilutes its concentrate before canning.

• 8 oz cold brew: ~100–170mg (estimated)
• 12 oz cold brew: 150–250mg (Bare Brew: 320mg)
• 16 oz cold brew: 200–320mg
• 20 oz cold brew: ~240–420mg (estimated)
• 24 oz cold brew: ~290–500mg (estimated)

Estimated figures are derived from the 12–21mg-per-ounce rate typical of ready-to-drink cold brew, not from a published label for that exact size. Full breakdown by cup size below.

This guide is a detailed cold brew caffeine breakdown for 2026. We compare 14 ready-to-drink cold brew SKUs whose caffeine is transcribed from a published label side by side (with caffeine per fluid ounce, not just per serving), explain how extraction works, and show how cold brew compares with brewed coffee, espresso and energy drinks.

How Cold Brew Caffeine Works: The Extraction Science

Cold brew is made by slow-steeping coarse coffee grounds in cold or room-temperature water for hours rather than minutes. Rao and Fuller (Scientific Reports, 2018) found cold brew had lower total titratable acidity than hot brew at comparable pH. Many people find the result tastes smoother than hot coffee, and per serving it's often higher in caffeine than drip coffee.

Five factors determine how much caffeine ends up in your cup:

• Coffee-to-water ratio: A higher ratio (more coffee per ounce of water) means more caffeine. For a deeper dive, see our cold brew concentrate ratio guide.
• Brew time: Steep time changes extraction, and recipes vary widely; there is no single sourced number. Our steep time guide covers what the sources actually say.
• Bean origin and species: Robusta beans generally contain more caffeine than Arabica. Many cold brews use Arabica for flavor and get their caffeine from the ratio and concentration.
• Grind size: A finer grind increases surface area, extracting more caffeine. Cold brew uses coarse grounds to prevent over-extraction of bitter compounds.
• Dilution: Some brands dilute their concentrate before canning, which lowers the caffeine per ounce. Check the label for the number.

Cold Brew Caffeine by Brand: The Complete 2026 Comparison

Here's the comparison that matters: cold brews compared not just by total caffeine, but by caffeine per fluid ounce — the metric that shows caffeine density. Every figure below is transcribed from a published label and tied to a named SKU (size and variant). Where a brand publishes no caffeine figure, we say so rather than estimate one. Bare Brew's 12 fl oz can is 320mg, or 26.7 mg per fl oz. Full sourcing is in our label-transcribed caffeine dataset.

A dash in the sugar column means we have not transcribed a sugar figure from that product's published label. Brands are absent from this table because they publish no caffeine figure for the SKU in question, or because we have not transcribed one: Chameleon Cold Brew (10 fl oz black ready-to-drink and the 32 fl oz concentrate), Califia Farms Pure Black, the Starbucks Cold Brew Black Unsweetened 11 fl oz bottle, Peet's Baridi Black, Dunkin' ready-to-drink, Explorer, Black Rifle Just Black, STōK Extra Bold Black, Bizzy Light Roast, La Colombe Brazilian Cold Brew and Stumptown. Starbucks café cold brew (Tall, Grande, Venti, Trenta) is a different product class and carries no transcribed label figure. Where a figure is not published, "not published" is the honest answer — see the label-transcribed caffeine dataset.

Add up your own total with the caffeine calculator. Count every coffee, tea, soda and energy drink in your day.

Caffeine values based on manufacturer labels and published data. Actual content may vary by batch, location, and preparation. Always check the label on your specific product.

Key takeaway: Bare Brew has 320mg of caffeine in a 12 fl oz can, with 0g sugar and two ingredients: filtered water and Honduran Arabica. That's 26.7mg per fluid ounce. For more brands, see our canned coffee ranked by caffeine.

Cold Brew Caffeine by Cup Size

Caffeine scales with volume. Figures marked (est.) are derived from the 12–21mg-per-ounce rate typical of ready-to-drink cold brew rather than from a published label for that exact size.

Café-poured cold brew is a different product class from a sealed can or bottle: it is built to order and the chains publish no label figure for it that we can transcribe, so it is not included in these numbers. A 12 fl oz Bare Brew can is 320mg, or 26.7mg per fluid ounce. Run your own numbers in the caffeine calculator.

Cold Brew vs. Other Coffee Types: Caffeine Head-to-Head

Cold brew isn't just another way to make iced coffee, and the caffeine numbers differ from other formats.

Cold Brew vs. Drip Coffee

An 8 oz cup of brewed coffee has about 95mg of caffeine (USDA FoodData Central). Ready-to-drink cold brew runs about 125–320mg per serving on the labels above depending on brand and concentration. Most of that gap comes from the coffee-to-water ratio, the serving size and how much a brand dilutes, not from brew method alone.

Cold Brew vs. Espresso

Espresso is the most concentrated coffee by volume — roughly 63mg per 1 oz shot (63 mg/oz). But nobody drinks 12 oz of espresso. A single shot has 63mg total, while a single Bare Brew has 320mg. For more on this matchup, read our cold brew vs. espresso comparison.

Cold Brew vs. Iced Coffee

Iced coffee is hot-brewed coffee poured over ice. As the ice melts, it dilutes both flavor and caffeine. Cold brew is brewed cold from the start, so it isn't made by pouring hot coffee over ice. For the full breakdown, see cold brew vs. iced coffee.

Cold Brew vs. Energy Drinks

Energy drinks vary widely in caffeine and sugar, and the numbers are on each brand's label (see the label-based table further down). Bare Brew has 320mg caffeine with 0g sugar and 20 calories per 12 fl oz can. For more, read our cold brew vs energy drinks comparison.

What's on the Label: Why Ingredients Matter

Caffeine is the same molecule whether it comes from a coffee bean or is added as caffeine anhydrous. What changes from drink to drink is everything else in the can, and the ingredient list is where you find it.

Some cold brews list sweeteners, natural flavors, gums, milk or stabilizers. Many energy drinks list caffeine as a separate ingredient, along with sugar or sweeteners, vitamins, colors and other additions. None of that is hidden: it's all on the ingredient list.

What's in Bare Brew: No sugar. No dairy. Bare ingredients, a special blend of coffee and water: filtered water and Honduran Arabica. No syrup, no cream, no sweeteners, no flavors, no gums. See our full guide to unsweetened cold brew with zero sugar.

How to Make Cold Brew Coffee at Home

If you want to control your caffeine content precisely, making cold brew at home is straightforward. Here's the method:

What You Need

• Coarsely ground coffee (freshly roasted for best flavor)
• Cold, filtered water
• A large jar, French press, or dedicated cold brew maker
• A fine-mesh sieve, cheesecloth, or coffee filter for straining

Step-by-Step Brewing

1. Measure your ratio. Use a 1:5 ratio for concentrate (1 cup coffee to 5 cups water) or 1:8 for ready-to-drink strength.
2. Combine and stir. Add grounds to water, stir gently to saturate all grounds.
3. Steep in the fridge. Recipes vary; see our steep time guide for what the sources actually say, and taste as you go.
4. Strain thoroughly. Filter through a fine-mesh sieve lined with cheesecloth or a paper filter. Strain twice for a cleaner cup.
5. Dilute and serve. If you made concentrate, dilute 1:1 with water or milk. Serve over ice.

Caffeine control: To raise caffeine, use more coffee per cup of water; to lower it, use less. Bean choice matters too: Robusta beans generally contain more caffeine than Arabica. For the full walkthrough, see our detailed cold brew recipe guide.

The honest comparison: home cold brew is almost certainly cheaper per cup than any can, ours included, and you control the strength. What a can gives you is a fixed number on a label and no prep. Bare Brew is $6.00/can in a 4-pack ($23.99), $5.50/can in a 6-pack ($32.99) and $4.50/can in a 12-pack ($53.99), plus $8.99 flat shipping on every US order with no free-shipping threshold. It is not the cheapest caffeine per milligram either: Celsius comes in lower. See the label and pack sizes.

What FDA Says About Caffeine

FDA says up to 400mg a day is an amount not generally associated with negative effects for most healthy adults. An 8 oz cup of brewed coffee has about 95mg of caffeine (USDA FoodData Central).

Each 12 fl oz can of Bare Brew has 320mg of caffeine. Count it along with every other coffee, tea, soda and energy drink in your day.

Bare Brew is not recommended for children, people who are pregnant or nursing, or anyone sensitive to caffeine. If you take medication or have a health condition, talk to your doctor about caffeine.

Grande Cold Brew Caffeine Content

A common caffeine question: how much caffeine is in a Starbucks Grande cold brew? The honest answer is that Starbucks publishes no label figure for its café-poured cold brew that we can transcribe. A café beverage is a different product class from a sealed, labelled can or bottle — it is built to order, so there is no fixed panel figure the way there is on a canned SKU. We do not estimate one here. For Starbucks cold brew that does carry a nutrition panel, see the packaged SKUs below.

Here's how packaged, label-bearing drinks compare on caffeine per fluid ounce:

Cold brew figures transcribed from published labels, September 2026 — see the label-transcribed caffeine dataset. Energy drink figures are from each brand's own published label. Starbucks, Dunkin' and Peet's café-poured cold brews are omitted because no transcribed label figure exists for them.

Key insight: a sealed can or bottle carries a panel figure you can check against the label; a café-poured cold brew does not. Bare Brew's 12 fl oz can is 320mg of caffeine, or 26.7mg per fluid ounce, from two ingredients: filtered water and Honduran Arabica.

How Much Caffeine in Cold Brew vs Coffee

The caffeine gap between cold brew and regular coffee comes down to three factors: coffee-to-water ratio, serving size, and dilution. Here's how the formats with a citable figure compare:

In the label data above, ready-to-drink cold brew usually carries more caffeine per serving than an 8 oz cup of brewed coffee, mostly because of higher coffee-to-water ratios and larger servings. Espresso is more concentrated per ounce (63mg/oz), but a typical serving is only 1 oz. Bare Brew's 26.7mg per fluid ounce is a little over twice the caffeine per ounce of an 8 oz cup of brewed coffee at about 95mg (USDA FoodData Central). Pour-over, French press and instant coffee vary too much by recipe to give one honest number, so we've left them out rather than guess.

For a side-by-side breakdown of cold brew vs. specific brewing methods, see our guides on cold brew vs. iced coffee and cold brew vs. espresso.

Frequently Asked Questions

How much caffeine is in Bare Brew cold brew?

Bare Brew has 320mg of caffeine per 12 fl oz can. That's 26.7mg per fluid ounce. No sugar. No dairy. Bare ingredients, a special blend of coffee and water: filtered water and Honduran Arabica, with 20 calories and 0g sugar.

How does cold brew caffeine compare to hot coffee?

Ready-to-drink cold brew typically has 125–320mg per serving on the labels above. An 8 oz cup of brewed coffee has about 95mg of caffeine (USDA FoodData Central). Most of the gap comes from coffee-to-water ratio and serving size.

How much caffeine does FDA say is OK in a day?

FDA says up to 400mg a day is an amount not generally associated with negative effects for most healthy adults. Each 12 fl oz can of Bare Brew has 320mg, so count it along with any other caffeine you have that day. Bare Brew is not recommended for children, people who are pregnant or nursing, or anyone sensitive to caffeine. If you take medication or have a health condition, talk to your doctor about caffeine.

Why does cold brew have more caffeine than iced coffee?

Cold brew is usually made at a higher coffee-to-water ratio and isn't poured over ice to cool it. Iced coffee is hot-brewed, then diluted by melting ice, which lowers both flavor and caffeine per ounce.

Does cold brew have more caffeine than espresso?

Per serving, yes. A single espresso shot has about 63mg caffeine in 1 oz. A typical cold brew serving delivers 150–320mg. Per ounce, espresso is more concentrated (63 mg/oz vs. 10–27 mg/oz for cold brew), but you drink far more cold brew per serving.

Which cold brew has the most caffeine per fluid ounce?

Any honest answer is limited to the brands that actually publish a figure. Among the ready-to-drink cold brews whose labels we transcribed, caffeine density runs from about 10 to 27 mg per fluid ounce: Wandering Bear Original Black is 25.0 mg/fl oz (200mg per 8 fl oz can), RISE Original Black is 24.5 mg/fl oz (270mg per 11 fl oz can), Bare Brew is 26.7 mg/fl oz (320mg per 12 fl oz can), High Brew Black Triple Shot is 20.5 mg/fl oz (225mg per 11 fl oz can) and STōK Un-Sweet Black is 10.4 mg/fl oz (125mg per 12 fl oz serving). Several well-known brands — Chameleon, Califia Farms Pure Black, Peet's Baridi Black and Dunkin's ready-to-drink line — publish no caffeine figure at all, so no ranking can honestly include them. Figures transcribed from published labels, September 2026; see the full label-transcribed caffeine dataset.

Is Bare Brew the cheapest caffeine per milligram?

No. At the 12-pack price of $4.50 a can, Bare Brew works out to about $0.014 per milligram of caffeine. Celsius is cheaper per milligram. Shipping is $8.99 flat on every US order, with no free-shipping threshold.

What's the difference between cold brew caffeine and energy drink caffeine?

The caffeine molecule is the same either way. In a coffee-and-water cold brew, the caffeine comes from the coffee beans. Many energy drinks list caffeine as a separate ingredient, along with sugar or sweeteners and other ingredients. The difference is what's on the label: Bare Brew's label lists filtered water and Honduran Arabica.

The Bottom Line: 320mg, Minimum Ingredients

When it comes to caffeine in cold brew, Bare Brew has 320mg per 12 fl oz can, or 26.7mg per fluid ounce. No sugar. No dairy. Bare ingredients, a special blend of coffee and water.

Comparing brands? See our cold brew brand comparison or our guide to zero-sugar cold brew.

Want to try it? See Bare Brew pack sizes and prices.

For more cold brew know-how, explore our guides on canned coffee ranked by caffeine, what 320mg of caffeine means against FDA guidance and shelf-stable cold brew.

Updated November 2, 2026: removed steep-time figures and pour-over, French press, instant and decaf caffeine ranges that we could not trace to a primary source, and added the Rao and Fuller (2018) acidity citation.

This article is general information, not medical advice. Bare Brew is a coffee drink, not a treatment for any condition. Each 12 fl oz can has 320mg of caffeine. It's not recommended for children, people who are pregnant or nursing, or anyone sensitive to caffeine. If you take medication or have a health condition, talk to your doctor about caffeine.