Who is choosing the drinks?
The useful starting point is the drinks menu and how it will be served, rather than a mixer label on its own.
Conference organisers planning a choice of drinks
Offer a drink made from checked alcohol-free components as a distinct menu option. If alcoholic mixed drinks are also served, name and prepare them separately so guests can tell which they are receiving.
Caterers setting alcohol per serve
Write each alcoholic recipe around the spirit’s ABV and a measured pour. Drinkaware puts a 25 ml measure of typical 40% ABV spirit at one UK alcohol unit; changing the tonic does not change that spirit measure.
Buyers organising service across breaks
Choose pack sizes around the serving method. Individual cans make mixer portions straightforward to hand out; larger bottles call for a plan for dispensing and managing opened bottles. Keep the delivered packs available for ingredient checks.
What should you check first?
Decide whether each menu drink must contain no alcohol or will contain a measured spirit. Then compare mixer flavour, nutrition and pack format for that recipe.
Alcohol-free serve
Choose when: Guests need a drink without alcohol, rather than a smaller alcoholic pour.
Check: Verify every component before describing the finished drink as alcohol-free, and keep its preparation distinct from alcoholic service.
Measured spirit and mixer
Choose when: Alcoholic drinks are part of the event menu and the caterer wants a consistent amount per serve.
Trade-off: A single pour still contains alcohol and cannot replace the separate alcohol-free choice.
| Priority | What to check | Your needs |
| Alcohol in the finished drink |
Check the ABV of every component. For an alcoholic recipe, specify the spirit’s ABV and pour size; Drinkaware says 25 ml of a typical 40% ABV spirit contains one UK alcohol unit. |
I want guests to know whether their drink contains alcohol, with a separate option for those who do not drink it. |
| Mixer formulation |
Compare the exact packs’ kcal and sugars on the same per-100 ml or per-serving basis. Read the ingredient list, including any sweeteners; a light or slimline name does not state the finished drink’s alcohol content. |
A lighter tonic may suit one recipe, but I still need to decide separately whether that drink contains a spirit. |
| Serving format |
Match individual cans or larger bottles to the number of servings and whether drinks are handed out or dispensed by staff. Tesco and Sainsbury’s list mixer options in both small cans and 1 litre bottles. |
For quick service I may want individual portions; at a staffed bar, I can plan how opened bottles will be dispensed. |
| Ingredient information |
Check delivered labels and keep packs or current supplier specifications at the service point. Sainsbury’s advises that product ingredients can change, so an earlier listing should not stand in for the pack. |
I want the catering team to answer questions about the drinks actually being served, including their declared ingredients. |
Mixer brands and ranges
These range examples can help narrow a catering order; the relevant checks still belong to the exact pack and finished recipe.
Fever-Tree
Tesco lists Fever-Tree light tonic in 150 ml multipack cans, a format to consider for individual mixer portions.
- A named light tonic option for comparing pack size and flavour with the intended serve.
- Check the exact pack’s nutrition and ingredients; ‘light’ does not establish the alcohol content of a mixed drink.
Schweppes
UK retailer listings include Slimline Tonic Water in 1 litre bottles and 12 × 150 ml packs.
- The two listed formats allow a choice between bottled dispensing and individual mixer portions.
- A slimline mixer does not reduce the alcohol units in a spirit that has already been measured into the drink.
Fentimans
Fentimans lists tonic variants, ginger ale and soda water for different mixer flavours.
- Its range offers several flavour directions for a planned drinks menu.
- Fentimans lists 20 kcal and 4.4 g sugars per 100 ml for Connoisseurs Tonic Water; do not assume another variant has the same values.
Britvic
Britvic has described an Indian Tonic Water multipack can format for retail.
- A can format may fit a plan for handing out individual mixer portions.
- Check the exact product’s current pack size, nutrition and ingredients rather than treating a range description as its specification.
Tesco
Tesco lists own-label low-calorie tonic, ginger ale and soda water with lime, including 1 litre options.
- Different mixer types let buyers plan more than one flavour of serve.
- Check the delivered product’s label before using its nutrition or ingredient information for catering.
Sainsbury's
Sainsbury’s lists own-label diet tonic in 1 litre bottles.
- Its Diet Indian Tonic Water listing gives 4 kcal per 250 ml serving, a figure to compare on a consistent serving basis.
- Sainsbury’s warns that ingredients may change; use the delivered label for event information.
Tonic cans on Joybuy
These tonic-water cans offer individual mixer portions for conference service, including named light and slimline variants and a standard Indian tonic. None of the product names alone establishes that a finished serve is low alcohol or alcohol-free.
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Schweppes Slimline Tonic Water, 12 × 150 ml
The 150 ml cans provide individual mixer portions for a planned serve. Check the delivered ingredients against attendee requirements, and check every component before describing a finished drink as alcohol-free or low alcohol.
View on Joybuy
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Fever-Tree Refreshingly Light Premium Indian Tonic Water, 15 × 150 ml
This Indian tonic comes in individual 150 ml cans for portioned service. Check the delivered nutrition label if the mixer formulation matters to the menu; the spirit measure, if added, remains a separate decision.
View on Joybuy
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Fever-Tree Refreshingly Light Mediterranean Tonic Water, 8 × 150 ml
The Mediterranean variant gives the menu a different named tonic option in individual 150 ml cans. Check its delivered nutrition and ingredient label, and assess alcohol content from the complete recipe.
View on Joybuy
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Fever-Tree Naturally Light Tonic Water, 8 × 150 ml
This eight-can pack supplies 150 ml mixer portions. Compare its current nutrition and ingredients with other tonics on the same basis; do not use ‘Naturally Light’ as an alcohol-content description.
View on Joybuy
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Schweppes Indian Tonic Water, 12 × 150 ml
This standard Indian tonic offers individual 150 ml mixer portions. For an alcoholic serve, specify and measure the spirit separately; compare the delivered nutrition label if the mixer formulation matters.
View on Joybuy
Conference mixer questions
Does slimline tonic make a mixed drink low alcohol?
No: ‘slimline’ describes the mixer, not the alcohol supplied by an added spirit. Drinkaware says a 25 ml measure of typical 40% ABV spirit contains one UK alcohol unit; check the spirit’s ABV and the actual pour when writing the recipe.
What does ‘low alcohol’ mean for a UK drink?
GOV.UK’s low-alcohol descriptor guidance, published in 2018, describes low-alcohol drinks as those at 1.2% ABV or below. Check the ABV of the finished drink or its complete recipe rather than inferring it from ‘light’, ‘diet’ or ‘slimline’ on a mixer.
Should a conference use tonic cans or larger bottles?
Choose individual cans when the service plan calls for ready-portioned mixers; consider larger bottles when staff can dispense servings and manage opened bottles. Tesco and Sainsbury’s list examples of both formats, so confirm the pack size needed for the event before ordering.
How can staff answer questions about mixer ingredients?
Keep the delivered packs or current supplier specifications available at service. Sainsbury’s warns that ingredients may change, so check the label of the exact product being poured rather than relying only on an earlier listing.