Choose a glass cold-brew maker if you can prepare coffee before the BBQ and want to brew a batch in the bottle: Grind specifies a 1L bottle and an 8–24-hour brew time, while Whittard specifies 650ml and eight hours. If you need to assemble drinks shortly before serving, a concentrate avoids the brewing wait, but do not assume its purchased container is glass. Check the exact pack for ingredients and allergens when serving guests with different requirements.
The useful distinction is whether you have time to brew, need drinks ready to mix, or are choosing individual serves for particular guests.
A glass brewing bottle with an integrated filter lets you prepare a batch before guests arrive. Grind and Whittard specify different capacities and brew times, so match the bottle to your expected servings and preparation window.
A concentrate can be mixed with cold water or another suitable mixer when drinks are needed. It is a different purchase from a glass brewing bottle, and its dilution instructions matter when planning quantities.
Individual oat-based cold-brew drinks offer another format. M&S describes its oat latte as dairy-free but says it is unsuitable for coeliacs and people with a wheat allergy; Sainsbury’s lists Nolo’s oat latte as decaffeinated and containing oat. Check each current pack before serving.
Decide first whether you are buying brewing equipment, concentrate or a drink ready to serve. Then check quantity, preparation time and the exact container.
| Priority | What to check | Your needs |
|---|---|---|
| Batch size | Grind specifies a 1L glass brewer making 4–5 cups; Whittard specifies a 650ml glass brewer and five 130ml cups. Compare those stated servings with the drinks you plan to pour. | I need enough coffee for the guests likely to want it, allowing for the serving size I choose and whether I can make another batch. |
| Preparation time | Grind specifies 8–24 hours of brewing; Whittard specifies eight hours. For Tesco Finest concentrate, Tesco directs a serve of 100ml concentrate mixed with 100ml cold water. | If coffee must be ready soon after guests arrive, I would rather mix a drink than start brewing at the BBQ. |
| Glass container | Check whether the exact item is a glass brewing bottle or a drink sold in glass. A cold-brew name alone does not establish the purchased container’s material. | The container itself matters to me, so a concentrate is not a substitute for a confirmed glass bottle merely because both make cold coffee. |
| Guest requirements | Read the current ingredients, allergen and caffeine information. An oat-based drink can be dairy-free while still containing oat; a decaffeinated variant is a separate choice. | For mixed guests, I want to know which individual drinks are suitable before setting them out together. |
| Storage | Follow the instructions for the exact drink. Tesco says to refrigerate its opened concentrate and consume it within four weeks; Sainsbury’s says to refrigerate Nolo after opening and consume it within 24 hours. | I may open drinks before everyone wants one, so I need a way to keep them as their labels direct. |
Grind’s and Whittard’s glass bottles are brewing equipment, not filled drinks. Both require ground coffee and time before the batch is ready.
If preparation time is short, choose a concentrate or ready-to-drink product instead. To use a brewer, begin at least its stated brewing period before the BBQ.
The glass construction specified for Grind’s and Whittard’s brewers does not establish the packaging material of a concentrate or an individual drink.
Check the exact product description or physical pack if buying a glass container is part of the decision.
Dairy-free does not mean free from other allergens. M&S says its oat cold-brew latte is not suitable for coeliacs or people with a wheat allergy, and Nolo’s oat latte contains oat.
Read the current ingredients and allergen statement for each drink before offering it to guests with dietary restrictions.
Waitrose lists Tia Maria Cold Brew Coffee Liqueur at 20% alcohol by volume. Its cold-brew name does not make it a non-alcoholic coffee drink.
Keep liqueur separate from non-alcoholic options and identify it clearly if serving mixed drinks.
These examples illustrate different cold-brew formats; a brand’s inclusion here does not mean every product it sells has the same container or ingredients.
Grind offers both a glass brewing bottle and a separate concentrate for mixing drinks.
Whittard’s Cold Brew Coffee Bottle is a smaller glass brewing option.
Tesco Finest Unsweetened Cold Brew Coffee Concentrate is intended for drinks mixed at serving time.
M&S describes its Oat Latte Cold Brew Coffee as an individual dairy-free drink.
Nolo’s Classic Cold Brew Oat Latte is a decaffeinated individual drink listed by Sainsbury’s.
This ready-to-mix cold-brew option is for assembling drinks at serving time. Check the exact packaging separately if you need the purchased container to be glass.
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The individual pouches offer a way to mix cold-brew drinks with cold water shortly before serving. Check the mixing directions to plan the finished drink size for your guests. If glass packaging matters, confirm the container material; check the current pack for ingredients, caffeine and storage instructions.
Not in the case of Grind’s and Whittard’s glass bottles: both are brewers with integrated filters and require ground coffee and advance preparation. Tesco Finest concentrate is another format that must be diluted. Check whether a listing describes equipment, concentrate or a finished drink before ordering.
Whittard specifies 650ml and five 130ml cups; Grind specifies 1L and 4–5 cups. Compare those stated yields with the servings you expect to pour, and allow time for another brew if one batch will not be enough.
Follow the directions for the particular product rather than applying one period to every cold brew. Tesco says its opened concentrate should be refrigerated and consumed within four weeks; Sainsbury’s says opened Nolo should be refrigerated and consumed within 24 hours. Grind’s own preparation guidance gives up to 10 days refrigerated in an airtight container for its homemade cold brew, but 2–3 days for drinks diluted with milk or creamer.
Read the current ingredients, allergen and caffeine information for each exact drink. M&S says its oat latte is dairy-free but unsuitable for coeliacs and people with a wheat allergy; Sainsbury’s identifies Nolo’s oat latte as decaffeinated and containing oat. Do not assume that dairy-free means suitable for every guest.
No. Waitrose lists Tia Maria Cold Brew Coffee Liqueur at 20% alcohol by volume. Keep it clearly separate from non-alcoholic cold-brew drinks when preparing a BBQ serve.