Who might choose each format?

Black-coffee drinkers comparing caffeine

If you want a ready-to-drink coffee without milk, a stated caffeine amount gives you a basis for checking your intake. Coffee Friend lists Sandows black cold brew as dairy-free and sugar-free, with 40.5 mg caffeine per 100 ml in a 200 ml bottle. Check the current bottle label before relying on those details.

Latte drinkers on a short break

If you want a chilled drink without a preparation step, M&S describes its Classic Latte and Oat Latte cold brews as containing a double shot of espresso. M&S says the Classic Latte uses semi-skimmed milk and describes the Oat Latte as dairy-free; check the pack for the current ingredients and caffeine amount.

Shoppers keeping track of caffeine

If caffeine intake affects your choice, compare the amount for the bottle or prepared serving rather than relying on flavour wording. During pregnancy, NHS guidance says not to have more than 200 mg of caffeine a day, so the drink needs to be considered alongside other caffeine consumed that day.

What should you check before buying?

Decide whether the drink needs to be ready immediately, then check caffeine for the amount you will consume and whether its ingredients suit your preferences.

Priority What to check Your needs
Caffeine amount Look for caffeine in mg per bottle or prepared serving. If it is stated per 100 ml, use the volume you intend to drink; ‘double shot’ is not a comparable mg measure. I want to judge the caffeine in my actual drink, not guess from how strong it sounds. Coffee Friend lists Sandows at 40.5 mg per 100 ml, or 81 mg for its 200 ml bottle.
Preparation time Distinguish ready-to-drink bottles from concentrates. For a concentrate, check the pack’s dilution instructions and the resulting serving size. For a brief break, I may want to open a chilled drink straight away; otherwise, I need water and a cup to prepare a concentrate.
Milk and sugar Check the current ingredient and allergen declaration. M&S says its Classic Latte contains semi-skimmed milk and describes its Oat Latte as dairy-free; Coffee Friend lists Sandows black cold brew as dairy-free and sugar-free. I might prefer a milk latte, a dairy-free oat latte or black coffee. The pack will help me confirm which version I am buying.
Product category Check whether the listing is a coffee drink or a liqueur, including any alcohol-by-volume statement. Waitrose lists Tia Maria Cold Brew Coffee Liqueur at 20% Alc/Vol. I’m looking for coffee for a morning break, not an alcoholic drink with ‘cold brew’ in its name.

What is easy to overlook?

  • Taking ‘strong’ or ‘double shot’ as a caffeine measurement

    M&S describes its cold-brew lattes as double-shot drinks, while Coffee Friend gives a caffeine figure for Sandows. Those different descriptions do not establish which drink contains more caffeine.

    Compare caffeine in mg for the bottle or prepared serving. Where a label gives mg per 100 ml, apply it to the volume you plan to drink.

  • Choosing a latte without checking its ingredients

    M&S says its Classic Latte uses semi-skimmed milk, while it describes its Oat Latte as dairy-free. Coffee Friend lists Sandows black cold brew as dairy-free and sugar-free.

    Choose the format you want, then check the current pack’s ingredients and allergen information before buying.

  • Mistaking coffee liqueur for a cold-brew drink

    Waitrose lists Tia Maria Cold Brew Coffee Liqueur, which its product page identifies as 20% Alc/Vol and containing rum.

    Check the product category and alcohol-by-volume information when a search result has ‘cold brew’ in its name.

Brand and retailer references

M&S

M&S offers ready-to-drink Classic Latte and Oat Latte cold-brew options for a break without preparation.

  • M&S describes both as containing a double shot of espresso; it says the Classic Latte uses semi-skimmed milk and the Oat Latte is dairy-free.
  • Check the pack for caffeine in mg before comparing either latte with another drink.

Tesco

Tesco Groceries lists Tesco Finest Unsweetened Cold Brew Coffee Concentrate among its iced coffees.

  • The concentrate format offers a drink you prepare rather than a ready-to-drink bottle.
  • Check its preparation instructions and caffeine per prepared serving before comparing strength.

Waitrose

Waitrose & Partners lists iced coffees including Jimmy's Iced Coffee Strong, Starbucks Doubleshot Espresso, Starbucks Tripleshot Espresso and concentrates.

  • The listings give shoppers several named formats to inspect for a short break.
  • Names such as ‘Strong’ and ‘Tripleshot’ do not replace a caffeine-per-serving comparison. Check the category too: Waitrose also lists a cold-brew coffee liqueur.

Sandows

Coffee Friend lists a 200 ml ready-to-drink Sandows black cold brew.

  • Coffee Friend states 40.5 mg caffeine per 100 ml, equivalent to 81 mg for the listed 200 ml bottle, and describes it as dairy-free and sugar-free.
  • Check the current bottle label for the caffeine amount, ingredients and serving size.

A Joybuy concentrate option

This portioned cold-brew liquid suits a morning break when you have water and a cup to prepare a black coffee. Its ‘extra-strong’ name is not a measured caffeine amount.

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

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

The individual pouches provide a portioned option for a break, but the coffee liquid needs water and a cup rather than being ready to drink from the pouch.

The pack contains 10 × 25 ml pouches. The product is described as dark roast and labelled zero sugar and zero fat. Check the pack for dilution instructions and caffeine in mg per prepared serving before comparing its strength with a bottled cold brew.

View on Joybuy

Common questions

Does ‘strong’ cold brew always contain more caffeine?

No: ‘strong’ alone does not tell you the caffeine amount. Compare mg per bottle or prepared serving instead. Coffee Friend lists Sandows at 40.5 mg per 100 ml, while M&S describes its lattes as double-shot drinks without giving a comparable mg figure on the cited product pages.

How much caffeine is in a 200 ml Sandows cold brew?

Coffee Friend lists 40.5 mg caffeine per 100 ml, which works out to 81 mg for the listed 200 ml bottle. Check the current bottle label before using that figure to track your intake.

What should I check if I drink cold brew during pregnancy?

NHS guidance says not to have more than 200 mg of caffeine a day during pregnancy. Check the drink’s caffeine amount on its label and include other caffeine consumed that day when assessing your total.

Which of these cold brews are described as dairy-free?

M&S describes its Oat Latte Cold Brew Coffee as dairy-free, and Coffee Friend lists Sandows black cold brew as dairy-free and sugar-free. Check the current pack for full ingredients and allergen information.

Can a ‘cold brew’ search result be an alcoholic drink?

Yes. Waitrose lists Tia Maria Cold Brew Coffee Liqueur at 20% Alc/Vol. Check the product category and alcohol-by-volume statement before treating a listing as a coffee drink for your morning break.