Who is choosing?

Festival food vendors

If you are preparing or serving cold brew, check the event rules for your working and serving areas before choosing glass. Plan for refrigeration, breakage-prone handling and accurate information about the ingredients in each drink.

Festival visitors

If you hope to bring bottled coffee, check the rules for your ticket and the areas you will enter. Trowbridge Festival’s 2026 terms prohibit glass in its event arena, while Purbeck Valley Folk Festival’s terms prohibit bringing glass bottles onto site.

Home and catering preparers

An integrated-filter bottle lets you brew from grounds in advance and serve later where glass is permitted. Hario and Whittard of Chelsea each describe a refrigerated brewing process of around eight hours, so preparation needs to start well before service.

What should you check?

Start with the event’s rules for your role and location, then choose between advance brewing, a drink that is ready to serve and concentrate that needs diluting.

Priority What to check Your needs
Glass rules Check the current rules for your festival, role and site area. Trowbridge Festival’s 2026 terms prohibit glass in its event arena; Dartmouth Food Festival’s 2026 exhibitor policy permits glass bottled drinks for exhibitors. I need a container I can take into the relevant area or use for service without relying on rules written for a different event or role.
Preparation Allow around eight hours of refrigerated brewing for Hario’s FIC-70 or Whittard’s filter bottle. For a concentrate, check the stated dilution instructions and the water and vessels needed to serve it. If I am brewing from grounds, I can prepare ahead. For drinks made to order, I need a way to mix and serve each portion.
Ingredients Check the exact pack and serving recipe, including any milk or oat drink added. M&S describes its Classic Latte as containing semi-skimmed milk and its Oat Latte as dairy-free; those descriptions do not replace the pack label. I want to know what is in the drink. If I am selling it, I also need accurate ingredient and allergen information for what I actually serve.
Batch size Confirm the capacity of the exact bottle variant and distinguish finished drink volume from bottle capacity. Hario Co., Ltd. specifies 650ml finished capacity for FIC-70, while Hario UK lists 750ml capacity for FIC-70-CBR; Whittard lists its bottle at 650ml. Will the amount I can brew at once match my serving plan, or will I need to prepare more than one batch?

Common buying mistakes

  • Assuming glass is allowed throughout a festival

    Rules can differ by event and area. Trowbridge Festival’s 2026 terms prohibit glass in the event arena, while Dartmouth Food Festival’s 2026 exhibitor policy permits glass bottled drinks for exhibitors.

    Check the current attendee terms or vendor agreement for the exact place where you intend to bring, prepare or serve the drink.

  • Buying a brewing bottle as though it contains a drink

    Hario and Whittard filter bottles are equipment for brewing from grounds. Both require around eight hours of refrigerated preparation rather than providing coffee ready to serve on arrival.

    Choose a filter bottle if you can brew ahead; consider a ready-to-drink product or concentrate if the service plan calls for less advance brewing.

  • Taking a pictured bottle to mean glass packaging

    Tesco’s cold-brew concentrate listing gives preparation instructions, and the M&S cold-brew pages describe their drinks, but those details do not establish that their packs are glass.

    If glass packaging is essential, confirm the material on the exact current pack or a product specification that states it explicitly.

  • Using a dietary description as the whole ingredient check

    A drink described as dairy-free can still require a careful check of its exact ingredients and any additions made during service. The information given to customers needs to reflect the drink as served.

    Check the current pack and your serving recipe. GOV.UK’s allergen guidance for food businesses covers England, Northern Ireland and Wales; vendors elsewhere should check the requirements that apply to their location.

Relevant brand references

Hario

A filter-in glass bottle for preparing cold brew from grounds ahead of service.

  • Hario Co., Ltd. specifies heatproof glass, filter components, around eight hours of refrigerated brewing and 650ml finished capacity for FIC-70.
  • Hario UK lists 750ml capacity for FIC-70-CBR. Confirm the exact variant and the amount of finished coffee you need; glass use also depends on the event’s rules.

Whittard of Chelsea

A glass cold-brew preparation bottle with an integrated filter.

  • Whittard specifies a 650ml bottle, silicone stopper and eight-hour brewing time.
  • It is a brewing vessel, not a pre-filled drink; check whether glass is permitted where you plan to use it.

Tesco Finest

A cold-brew concentrate option for drinks diluted at the point of serving.

  • Tesco instructs users to mix 100ml concentrate with 100ml cold water.
  • Tesco says to refrigerate the concentrate after opening and consume it within four weeks. Confirm the pack material if that affects your event plan.

M&S

Chilled, ready-to-drink cold-brew latte options rather than bottles for brewing from grounds.

  • M&S lists 250ml Classic Latte and Oat Latte Cold Brew Coffee drinks; it describes the Oat Latte as dairy-free.
  • Check the exact pack for ingredients, storage instructions and packaging material before relying on it for festival service or a glass-bottle requirement.

Sandows

A London cold-brew producer: Sandows says it brews, fills and labels its bottled coffee.

  • For a particular purchase, check the current product’s container material, ingredients, volume and storage instructions rather than assuming every bottle has the same format.

Joybuy product options

This Joybuy option is portioned cold-brew coffee liquid for mixing with water, not a glass brewing bottle or a ready-to-drink bottle. It may suit made-to-order service where the event permits the packaging and serving setup you plan to use.

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

J.ZAO Extra-Strong Americano cold-brew coffee liquid, 10 × 25ml pouches

The portioned pouches offer a way to mix cold-brew coffee to order instead of brewing from grounds during service. The product information describes mixing one 25ml pouch with about 200ml water, adjustable to taste. You will need water and a serving vessel; check the exact pack label and the event’s rules for your intended use.

View on Joybuy

Frequently asked questions

Can I take a glass bottle of cold brew to a UK festival?

Check the rules for the particular event, your role and the area you will enter before taking one. Trowbridge Festival’s 2026 terms prohibit glass in its event arena, and Purbeck Valley Folk Festival’s terms prohibit bringing glass bottles onto site; Dartmouth Food Festival’s 2026 policy permits glass bottled drinks for exhibitors.

Will a glass filter bottle work for festival service?

It can work for coffee prepared in advance where glass is permitted in the preparation and service areas. Hario and Whittard describe brewing times of around eight hours, so allow refrigeration time and plan how the glass bottle will be handled and transported.

What should a festival food vendor check about allergens?

Check the exact product label and every ingredient added when the drink is served, then make sure the information given to customers reflects that recipe. GOV.UK’s allergen guidance for food businesses covers England, Northern Ireland and Wales; vendors in Scotland should check the guidance applicable there.

Does a dairy-free cold brew remove the need to read the label?

No. M&S describes its Oat Latte Cold Brew Coffee as dairy-free, but check the current pack for its ingredients and allergen information, particularly if you will add anything before serving it.

Is cold-brew concentrate ready to serve straight from the bottle?

Follow the instructions for the particular concentrate. Tesco directs users to mix 100ml of its Finest Unsweetened Cold Brew Coffee Concentrate with 100ml cold water, so that product needs diluting rather than serving as a ready-to-drink portion.