For a cold brew whose sugar content you can control, start with unsweetened black coffee or a concentrate diluted with water, then account for anything you add. Ready-to-drink oat and dairy lattes can contain sugars and carbohydrate even when labelled ‘no added sugar’, so compare the nutrition panel for the amount you will drink; choose an explicitly decaffeinated option if avoiding caffeine.
An unsweetened black coffee or concentrate lets you decide whether to add milk, an oat drink or a sweetener. Check the finished drink, not just the coffee base: those additions can change its sugars and carbohydrate.
Choose a product explicitly labelled decaffeinated rather than assuming cold brew contains little caffeine. If you are pregnant, NHS guidance says to keep total caffeine to no more than 200mg a day.
An oat-based cold brew may meet a dairy-free preference without being free of sugars or carbohydrate. Check the nutrition and allergen information separately; M&S states that its Oat Latte Cold Brew Coffee is not suitable for people with coeliac disease or a wheat allergy.
Start with the nutrition panel for the amount you intend to drink, then check ingredients, caffeine and any allergen restrictions. A plain coffee base and a pre-mixed latte need not have the same nutrition.
| Priority | What to check | Your needs |
|---|---|---|
| Sugars and carbohydrate | Compare both figures for the stated serving, and note whether the panel describes a concentrate or a prepared drink. Tesco Groceries lists 0g sugars for a prepared 200ml glass of Tesco Finest Unsweetened Cold Brew Coffee Concentrate. | I want to know what is in the drink I will actually have, including any milk or oat drink I add. |
| Label wording | Read the numbers as well as ‘no added sugar’ on the front of the pack. Sainsbury’s lists Nolo Decaf Classic Cold Brew Oat Latte as no added sugar or sweeteners, yet its 250ml can contains 4.8g sugars and 8.5g carbohydrate. | If I am looking for zero sugars, I need to check the declared sugars rather than rely on a no-added-sugar claim. |
| Caffeine | Look for an explicit decaf designation or a declared caffeine amount. Check the serving and preparation instructions for concentrates; ‘cold brew’ alone does not give a caffeine figure. | I would rather choose a clearly labelled decaf drink than guess from how the coffee was brewed. |
| Dairy and allergens | Check dairy-free wording, the carbohydrate declaration and the allergen statement independently. Marks & Spencer lists 7.5g carbohydrate per 100g for its Oat Latte Cold Brew Coffee and says it is unsuitable for people with coeliac disease or a wheat allergy. | An oat latte may meet my dairy-free preference, but I still need to check its other ingredients and nutrition. |
| Preparation and portions | Check how much water a concentrate needs and whether nutrition is stated per 100ml, per pack or per prepared serving. Include any additions when considering the finished drink. | I want a portion I can compare with a ready-to-drink can without overlooking what I mix into it. |
A no-added-sugar latte can still contain sugars and carbohydrate. Sainsbury’s lists 4.8g sugars and 8.5g carbohydrate in a 250ml can of Nolo Decaf Classic Cold Brew Oat Latte.
Check both nutrition figures for the serving you plan to drink, as well as the ingredients.
Oat-based drinks can contain carbohydrate. Marks & Spencer lists 7.5g carbohydrate per 100g for its dairy-free Oat Latte Cold Brew Coffee.
Use dairy-free wording to check for dairy, then assess sugars, carbohydrate and allergens on their own terms.
The brewing description does not tell you how much caffeine is in the portion you drink, particularly when a concentrate must be diluted.
Check the pack for a caffeine declaration and preparation instructions, or choose a product explicitly labelled decaffeinated if you need to avoid caffeine.
These examples illustrate different drink formats and label checks; a brand name alone cannot tell you the sugars, carbohydrate or caffeine in a particular product.
Its Unsweetened Cold Brew Coffee Concentrate is a plain coffee base to prepare with water rather than a pre-mixed latte.
Its ready-to-drink cold-brew lattes include dairy and oat formats with different nutrition and suitability information.
Nolo Decaf Classic Cold Brew Oat Latte combines a ready-to-drink oat format with an explicit decaf designation.
Plenish Organic Oat Zero Sugar is an oat drink that can be added to coffee, not a cold-brew coffee itself.
Sandows London describes its business as making cold-brew coffee in London.
This pouch-format cold brew is an option for making a drink at home and deciding what to add; check its preparation and nutrition information for the serving you intend to make.
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The 25ml × 10 pouch format allows you to prepare individual cold-brew drinks. Check the dilution instructions and the sugars and carbohydrate for the prepared serving; the title’s zero-sugar wording does not establish the finished drink’s carbohydrate content. Check caffeine information if that affects your choice.
No. ‘Cold brew’ describes how the coffee is made, not the sugars or carbohydrate in the finished drink. Diabetes UK includes unsweetened coffee among suitable drinks for people living with diabetes; check the nutrition of any latte, syrup or other addition you choose.
No. A no-added-sugar drink may still contain sugars. Sainsbury’s describes Nolo Decaf Classic Cold Brew Oat Latte as having no added sugar or sweeteners, while listing 4.8g sugars per 250ml can.
An unsweetened black coffee or concentrate prepared with water lets you choose what, if anything, to add. Tesco Groceries lists 0g sugars per prepared 200ml glass of its Finest Unsweetened Cold Brew Coffee Concentrate; milk, oat drink or syrup added afterwards changes the finished drink.
Check sugars and total carbohydrate for the amount you will drink, alongside any allergen statement. Marks & Spencer lists 7.5g carbohydrate per 100g for its Oat Latte Cold Brew Coffee and says it is unsuitable for people with coeliac disease or a wheat allergy.
No. Look for a declared caffeine amount or an explicit decaf label, and check the portion and preparation instructions. NHS guidance says that people who are pregnant should not have more than 200mg of caffeine a day from all sources.