For around 2 litres of cold brew alongside cream tea, you need not rely on finding one ready-to-drink bottle: two 500ml bottles of Tesco Finest concentrate make 2 litres when mixed with cold water according to Tesco’s 1:1 directions. If you can prepare coffee overnight, Waitrose’s recipe offers another route; scaling its ratio uses 2 litres of water, though that is not a stated final serving yield.
If you are planning roughly 2 litres, concentrate or an overnight batch lets you prepare a shared drink instead of opening individual portions. Tesco’s stated dilution makes 2 litres from two 500ml concentrate bottles; Waitrose’s homemade method needs overnight steeping.
For coffee with scones, jam and clotted cream, Tesco’s unsweetened concentrate can be mixed with cold water, leaving guests to add milk or an alternative separately if they wish.
Ready-to-drink coffees can have different ingredients: Marks & Spencer lists semi-skimmed milk in its Classic Latte Cold Brew and says its Oat Latte Cold Brew is not suitable for coeliacs or people with a wheat allergy. Check each drink’s label, particularly when guests need ingredient or caffeine information.
Choose it when: You want a shared drink that can be mixed shortly before serving; Tesco’s 500ml concentrate is diluted 1:1 with cold water.
Allow for: Two bottles, dilution and chilling rather than one ready-to-drink 2-litre bottle.
Choose it when: You can steep coffee overnight and strain it before the gathering, following Waitrose’s method.
Allow for: Preparation time and Waitrose’s two-day chilled-use window after straining.
Choose it when: Individual servings or a prepared latte-style drink matter more than making one shared batch.
Allow for: Multiple packs for a group and ingredient checks: Marks & Spencer’s cold-brew lattes are 250ml drinks containing milk or oats, depending on the variety.
| Priority | What to check | Your needs |
|---|---|---|
| Serving volume | Check whether the stated volume is concentrate or a prepared drink, and follow its dilution directions. Tesco’s 1:1 directions give 2 litres from two 500ml concentrate bottles. | I want enough coffee to offer several guests without relying on individual drinks. |
| Ingredients | Read the current ingredients and allergen label. Marks & Spencer’s Classic Latte Cold Brew contains semi-skimmed milk; the brand says its oat version is not suitable for coeliacs or people with a wheat allergy. | With scones and clotted cream already on the table, I would rather let guests decide whether to add milk or an alternative to their coffee. |
| Preparation and storage | Plan for overnight steeping if making Waitrose’s cold brew; strain, chill and use it within two days. Tesco says to refrigerate its concentrate after opening and consume it within four weeks. | I need a preparation plan that fits when the gathering takes place. |
| Caffeine | Check the caffeine information for the particular drink and serving size rather than judging it by the term cold brew. NHS pregnancy guidance sets a limit of 200mg of caffeine a day from all sources. | Some guests may need to keep track of caffeine, so I want enough information to offer them a suitable choice. |
A 500ml bottle of Tesco Finest concentrate is intended to be mixed with cold water, not poured as 500ml of ready-to-drink coffee.
Compare prepared yields: Tesco’s 1:1 directions make 2 litres from two 500ml bottles.
A latte-style drink may introduce milk or oats when guests were expecting plain coffee. Marks & Spencer says its Oat Latte Cold Brew is not suitable for coeliacs or people with a wheat allergy.
Check the package ingredients before serving, and consider offering a plain coffee base with additions separately.
Waitrose’s overnight recipe calls for the strained coffee to be chilled and used within two days.
Schedule the steeping and straining close enough to the cream tea to follow that window.
The drink name does not tell guests how much caffeine a serving contains. NHS pregnancy guidance sets a daily limit of 200mg from all sources.
Check the particular product’s serving and caffeine information, and have a non-coffee option available for guests who prefer one.
Its unsweetened 500ml cold-brew concentrate is an option for mixing a shared drink with cold water.
Its 250ml cold-brew lattes suit individual ready-to-drink portions rather than one shared 2-litre serving.
Sandows appears in smaller cold-brew formats, including a retailer listing for two 200ml ready-to-drink bottles and a separate 75cl concentrate listing.
These portioned cold-brew pouches are an alternative to a single 2-litre bottle for a cream-tea gathering. Check the pack’s mixing directions to plan the amount you will serve.
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The ten portioned pouches offer a way to mix drinks for guests rather than pour from one large bottle. Check the pack’s dilution, caffeine and prepared-drink storage directions when planning the serving.
No. If a shared 2-litre serving is the aim, two 500ml bottles of Tesco Finest concentrate make 2 litres when prepared using Tesco’s 1:1 water-to-concentrate directions. If one ready-to-drink bottle matters to you, check its labelled volume and the current listing before buying.
Mix two 500ml bottles of the concentrate with 1 litre of cold water in total. That follows Tesco’s instruction to combine equal volumes of concentrate and cold water and gives 2 litres of prepared drink.
Waitrose’s recipe uses 25g ground coffee for 200ml cold water, steeped overnight and then strained. Scaling that ratio calls for 250g coffee and 2 litres of water, but the published recipe does not state a final yield for that larger batch. Chill the strained coffee and use it within two days, as Waitrose directs.
Read the label of the drink you will serve, particularly if guests need to avoid milk or particular cereals. Marks & Spencer’s Classic Latte Cold Brew contains semi-skimmed milk, while M&S says its Oat Latte Cold Brew is not suitable for coeliacs or people with a wheat allergy. UK government guidance says regulated allergens in prepacked food must be clearly identified in the ingredients list.
No; check the caffeine information for the particular product and serving. NHS pregnancy guidance sets a limit of 200mg of caffeine a day from all sources, so the drink’s serving information matters when a guest is tracking that total.