Who is each option for?

Hosts who want an unsweetened base

A black concentrate lets you dilute drinks and offer milk or other additions separately, rather than giving every guest a pre-mixed latte.

Hosts who prefer a ready-to-pour latte

A no-added-sugar, lactose-free iced latte avoids mixing concentrate. It is still a milk drink and may contain naturally occurring sugars.

Hosts serving different dietary preferences

Keep black coffee and milk-based drinks clearly separate. Check the ingredients and allergen information on each pack before serving guests.

What should you check before buying?

Choose the drink style first, then check the sugar information, ingredients and preparation instructions for the pack you intend to serve.

PriorityWhat to checkYour needs
Sugars Compare the sugars line on the same per-100ml basis, then check the serving size and ingredients. Tesco Groceries lists 0g sugars for its unsweetened concentrate; its Starbucks Skinny Latte listing says no added sugar but also says it contains naturally occurring sugars. I want to know what is in the finished drink, including any syrup, milk or mixer added at the party.
Serving format Check whether the drink needs dilution or is ready to pour, and how many servings the pack will make. Tesco Groceries gives a method of 100ml concentrate plus 100ml cold water; Waitrose & Partners lists a 750ml Starbucks multiserve latte. For made-to-order drinks, I can set out water and glasses. If guests will serve themselves quickly, I would rather have a prepared drink.
Milk and ingredients Read the ingredient and allergen information for the exact variant. Tesco identifies its concentrate as suitable for vegans; the Starbucks Skinny Latte contains milk despite being lactose-free, and its Tesco listing says it is not suitable for people with a milk allergy. Some guests may need a clearly separate black-coffee option rather than a milk-based latte.
Storage Check the pack’s chilling and after-opening instructions, along with its date mark. Tesco’s concentrate instructions say to refrigerate it after opening and use it within four weeks; do not apply that period to other drinks. I need to know when to chill or open the drinks so they can be served as planned.

What could catch you out?

  • Reading “no added sugar” as “sugar-free”

    The Starbucks Skinny Latte listed by Tesco has no added sugar but contains naturally occurring sugars.

    For a zero-sugar requirement, check the sugars line and ingredients rather than relying on the front-of-pack wording alone.

  • Assuming lactose-free means milk-free

    The Starbucks Skinny Latte contains milk and is labelled unsuitable for people with a milk allergy. The M&S Classic Latte also lists milk.

    Keep a separately identified black-coffee option available and check each drink’s allergen information before serving.

  • Treating concentrate as a finished drink

    Tesco’s serving instructions call for 100ml concentrate and 100ml cold water. Sweetened additions will also change the sugars in the finished drink.

    Set out water, glasses and clearly identified additions, and allow time to mix the drinks.

  • Relying on an older product listing

    The ingredients, allergen information and storage directions that matter to guests are those on the pack being served.

    Check the physical pack’s ingredients, date mark and storage instructions before the party.

Which brands illustrate the options?

These brand examples show different cold-coffee styles; the label of the particular drink matters more than the brand name.

Tesco Finest

Its unsweetened cold-brew concentrate is a black-coffee base for drinks mixed to order.

  • Tesco Groceries lists 0g sugars for the concentrate and identifies it as suitable for vegans.
  • It needs diluting; any milk, syrup or other addition changes the finished drink.

Starbucks

The Skinny Latte listings at Tesco Groceries and Waitrose & Partners offer ready-to-drink, lactose-free iced coffee in single-serve and multiserve formats.

  • The listings describe these drinks as having no added sugar.
  • The Tesco-listed single serve contains naturally occurring sugars and milk; it is not suitable for people with a milk allergy.

M&S Food

Its cold-coffee options include latte and flavoured styles for guests who prefer a prepared milk-based drink.

  • The Classic Latte is ready to drink.
  • Marks & Spencer lists semi-skimmed milk and added sugar in the Classic Latte, with 3.8g sugars per 100g.

Sandows

Its black ready-to-drink cold brew provides an alternative to a milk-based latte.

  • Coffee Friend’s listing for the 200ml drink gives coffee and filtered water as ingredients and lists 0g sugars per 100ml.
  • Check the pack label before counting on it for guests with particular ingredient requirements.

TrueStart

TrueStart describes its cold-brew range as plant-based and without sugar or sweeteners.

  • Those descriptions identify the drink style to look for when comparing black cold coffees.
  • Check the ingredients and nutrition panel of the particular pack before choosing it for guests.

Joybuy cold-brew option

This pouch-format black coffee is an option for hosts who would rather prepare individual cold drinks with water than serve a pre-mixed latte.

J.ZAO Extra-Strong Americano cold-brew coffee liquid, ten 25ml pouches

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

The individual pouches can be used to prepare black cold-coffee drinks for guests. This is a concentrate that needs water before serving; check the physical pack’s ingredient and allergen details if guests have allergies.

Joybuy

Cold-brew questions

Does “no added sugar” mean sugar-free?

No. Tesco Groceries describes its Starbucks Skinny Latte as having no added sugar while also stating that it contains naturally occurring sugars. Check the sugars line on the pack when that distinction matters.

Which format works for serving several guests?

Choose concentrate if you want to mix individual drinks and offer additions separately: Tesco instructs shoppers to combine 100ml of its concentrate with 100ml cold water. A prepared multiserve latte takes less mixing, but its ingredients are already combined.

Is lactose-free iced coffee suitable for someone with a milk allergy?

Not on the strength of a lactose-free label. Tesco’s Starbucks Skinny Latte listing says the drink contains milk and is not suitable for people with a milk allergy.

What should I check on the pack before serving cold brew?

Check the ingredients and allergens for each variant, the sugars information if it affects your choice, and the date mark and storage instructions. Keep the packs available so guests can check the details relevant to them.

How long can opened concentrate be kept?

Follow the instructions on the particular pack. Tesco’s cold-brew concentrate says to refrigerate it after opening and consume it within four weeks; other drinks can have different directions.