Who is choosing?

Shoppers after a bolder chilled coffee

If coffee flavour needs to stand out beside rich snacks or desserts, the choice is between opening a ready-to-drink can and mixing a concentrate to taste.

Shoppers checking dairy and sweetness

Oat lattes, milk-based coffees and black cold brews have different ingredients. Check the current pack for allergens and sugars rather than relying on “cold brew” alone.

Caffeine-conscious coffee drinkers

If caffeine affects your choice, compare the amount for the portion you plan to drink. A decaffeinated oat latte is another format to consider when strong coffee flavour is not the priority.

What matters when choosing?

Decide whether you want a drink ready from the fridge or one you can mix, then compare caffeine and ingredients on the label of the specific variant.

PriorityWhat to checkYour needs
Coffee flavour and caffeine Check whether the drink is ready to drink or concentrated. Read caffeine per 100ml or per prepared serving, and note the portion size before comparing drinks. I want the coffee flavour to come through beside dessert, but I also want to know how much caffeine my serving contains.
Preparation A can can be drunk chilled without mixing; a concentrate needs a measured amount and a suitable mixer. Follow the particular product’s preparation directions. On some days I want to open a drink straight away; on others, controlling the coffee-to-mixer balance matters more.
Ingredients Check for milk, oats and flavourings, plus sugars per 100ml or serving. A dairy-free description does not replace checking the full allergen information. I need to know whether the drink fits my ingredient requirements, rather than assuming every cold brew is black or unsweetened.
Serving temperature Read the pack’s preparation and storage directions before changing how the drink is served. A winter pairing does not establish that a ready-to-drink can is intended for heating. I may want cold coffee alongside warm food without making assumptions about how the coffee should be prepared.

What should you avoid assuming?

  • “Strong” tells you the caffeine amount

    Products use different labelling bases: Sainsbury’s lists Jimmy’s Strong at 57mg per 100ml, while Waitrose gives 94mg per prepared glass for Nescafé Espresso Concentrated Iced Vanilla. Those figures do not describe the same portion.

    Check the unit and the amount you intend to drink before comparing caffeine.

  • Every cold brew is black and dairy-free

    The options include milk-style lattes, oat-based drinks and black coffee. Their ingredients and sweetness differ.

    Read the current ingredients, allergen information and nutrition panel for the exact variant.

  • A concentrate is ready to drink

    A concentrate needs preparation, unlike a chilled ready-to-drink can.

    Choose it when adjusting the finished drink matters to you, and have a suitable mixer available.

  • A winter pairing means the drink should be heated

    A cold brew can accompany warm food without being warmed itself. Preparation directions differ by product.

    Follow the current pack instructions rather than assuming a ready-to-drink coffee is intended for heating.

Brand references

These examples show how much the format can change the choice: compare the specific drink, not the brand name alone.

M&S

Its Classic Latte and Oat Latte are ready-to-drink cold-brew options.

  • Marks & Spencer describes the Classic Latte as combining espresso with semi-skimmed milk; its Oat Latte is described as dairy-free.
  • These are latte-style drinks, so check the current ingredients if you want black coffee or need to avoid particular allergens.

Jimmy’s Iced Coffee

Jimmy’s describes its Strong drink as its strongest iced coffee.

  • Sainsbury’s lists 57mg caffeine per 100ml for the 250ml Strong can.
  • The product name alone cannot tell you how its caffeine compares with a differently sized or prepared drink.

Nescafé

Its Espresso Concentrated range is for preparing a coffee drink with a mixer.

  • You can adjust the coffee-to-mixer balance when preparing a serving.
  • For the Iced Vanilla variant, Waitrose states 94mg caffeine per prepared glass; check the particular variant and recipe you use.

Nolo

Its Decaf Classic Cold Brew Oat Latte offers a decaffeinated, oat-based format.

  • Sainsbury’s describes this drink as decaffeinated, with no added sugar or sweeteners.
  • It is an oat latte rather than an unsweetened black cold brew; check the full label for ingredient suitability.

Sandows

A black ready-to-drink cold brew for comparing against latte-style options.

  • Coffee Friend UK describes its listed Sandows cold brew as sugar-free and dairy-free.
  • Those descriptions do not mean caffeine-free; check the listed caffeine amount and serving size.

Joybuy product options

This liquid coffee concentrate is an option for mixing a coffee-forward drink at home rather than opening a ready-to-drink can.

J.ZAO Extra-Strong Americano Cold Brew Coffee Liquid, ten 25ml pouches

J.ZAO Extra-Strong Americano Cold Brew Coffee Liquid, 25ml × 10 Pouches

For a drink you can dilute to taste, this liquid concentrate requires mixing before drinking. The pack is labelled zero sugar and contains ten 25ml pouches. Check the current label for caffeine per pouch, and confirm the extraction method if cold-brew processing matters to your choice.

View on Joybuy

Common questions

Does “strong” mean a cold brew has the most caffeine?

No: the name does not give you a comparable caffeine amount. Sainsbury’s lists Jimmy’s Strong at 57mg per 100ml, whereas Waitrose lists 94mg per prepared glass for Nescafé Espresso Concentrated Iced Vanilla. Check the serving basis before comparing them.

Which format lets me adjust the coffee flavour at home?

A concentrate lets you change the coffee-to-mixer balance. Follow the directions for the particular product and check its caffeine information for the serving you prepare.

Can I find a dairy-free cold brew?

Yes, but check the specific drink: M&S describes its Oat Latte as dairy-free, while Coffee Friend UK describes its listed Sandows cold brew as sugar-free and dairy-free. Read the current ingredients and allergen information, particularly if oats are a concern.

What should I check about caffeine during pregnancy?

The NHS advises no more than 200mg of caffeine a day during pregnancy. Check the drink’s caffeine amount for the portion you plan to have and account for other sources of caffeine that day.