Hosts planning gin or vodka highballs
Classic tonic suits drinks intended to have a bitter, quinine-led mixer. Sainsbury's describes its Schweppes Tonic Water 12 × 150ml listing as suitable for mixing with gin or vodka.
Who might need each mixer?
Hosts offering a no-sugar tonic
Schweppes Slimline Tonic Water offers a 12 × 150ml tonic option listed by Sainsbury's as having 0g sugars per 150ml. It still contains quinine, and its sweetener and phenylalanine declarations matter when checking guests' ingredient preferences.
Hosts setting out soft drinks alongside mixers
Schweppes Original Lemonade provides a non-tonic choice in a 12 × 150ml format. Sainsbury's describes it as a drink that can be served straight or mixed with gin or vodka.
What should you check before buying?
Start with the drinks you plan to serve, then count portions for each mixer rather than treating one case as a complete party drinks plan.
| Priority | What to check | Your needs |
|---|---|---|
| Pack capacity | Check the number and size of units. A 12 × 150ml pack contains 1.8 litres and makes twelve 150ml portions only when each serve uses one full unit. | Will the planned tonic and lemonade serves each fit the quantity I am buying? More drinks or larger mixer portions call for more than one case. |
| Drink style | Check whether the menu calls for bitter quinine tonic, a no-sugar tonic or lemon-flavoured lemonade. Check which drinks guests can have without spirits. | I want a non-tonic fizzy option as well as mixers for gin or vodka, rather than assuming everyone wants tonic. |
| Nutrition and sweeteners | Compare the exact pack labels per 150ml serving. Sainsbury's lists 7.4g sugars and 32kcal for Schweppes Tonic Water, 0g sugars and 3kcal for Slimline Tonic Water, and 6.3g sugars and 27kcal for Original Lemonade. | If I offer a no-sugar tonic, I also want to check its sweetener declaration; a name such as 'slimline' does not tell me everything about the ingredients. |
| Ingredients | Read the current label on the exact flavour and pack. The cited Schweppes tonic listings declare quinine, while the Slimline listing carries a source-of-phenylalanine statement. | Guests with specific ingredient concerns need the details for the drink being served, not an assumption based on the brand. |
Common planning mistakes
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Counting a 12-pack as drinks for exactly twelve guests
A 12 × 150ml case contains twelve full-unit portions, not an allowance for repeat drinks or several mixer styles.
Estimate tonic, slimline and lemonade serves separately, then compare each total with the packs you intend to buy.
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Buying only tonic for a mixed drinks table
Regular and slimline tonic both contain quinine. A no-sugar tonic does not provide a non-tonic flavour for guests who would rather have lemonade.
Plan a separate non-tonic drink if the menu needs one, including for guests having no spirits.
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Assuming slimline suits every ingredient preference
The Schweppes Slimline 12-pack is listed as having 0g sugars per 150ml, but it contains aspartame and carries a source-of-phenylalanine statement.
Keep the exact pack label available so guests can check its ingredients before choosing a drink.
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Choosing a flavour-led range without checking pack size
Pack formats differ even within mixer ranges: Tesco lists Fever-Tree tonic packs in 8 × 150ml and 15 × 150ml formats, while Fentimans lists its Naturally Light Tonic Water in 200ml and 4 × 200ml formats.
If twelve units are important to your plan, confirm the count, unit size and flavour on the particular product listing before substituting another mixer.
Mixer brand references
Schweppes
Sainsbury's lists Tonic Water, Slimline Tonic Water and Original Lemonade in 12 × 150ml formats, covering two tonic choices and a non-tonic lemonade.
- The listed flavours let hosts plan classic tonic, no-sugar tonic and lemonade serves separately.
- Both tonics contain quinine; check the exact pack for sweetener and other ingredient declarations.
Fever-Tree
Fever-Tree describes standard, light and flavoured tonics intended to complement different gin flavour profiles.
- The range offers flavour choices for a drinks menu built around particular gin pairings.
- Tesco lists relevant Fever-Tree packs in 8 × 150ml and 15 × 150ml formats; check the pack count if twelve units are required.
Fentimans
Fentimans describes botanical ingredients and particular spirit pairings for its tonic products; those pairings are the brand's suggestions, not rules for every serve.
- Its Premium Indian Tonic Water page identifies herbal infusions, Sicilian lemon oil and lemongrass extract.
- Fentimans lists Naturally Light Tonic Water in 200ml and 4 × 200ml formats, so check the format before planning around twelve units.
Britvic
In a 2016 announcement, Britvic described a mixer range spanning tonic, ginger ale, soda, bitter lemon and lemonade.
- The announced range covered both tonic and non-tonic drink styles.
- That 2016 announcement cannot establish the formulation or pack format of a product you buy now; check its current listing and label.
Joybuy 12 × 150ml mixer options
These Joybuy options cover a no-sugar tonic, an Indian tonic and a lemonade for planning separate Halloween party serves.
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Schweppes Slimline Tonic Water 12 × 150ml
A no-sugar tonic option for serves where guests want tonic flavour. The 12 × 150ml pack contains quinine and aspartame and carries a source-of-phenylalanine statement; check the label for ingredient concerns.
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Schweppes Indian Tonic Water 12 × 150ml
A quinine tonic option for gin or vodka serves. This 12 × 150ml pack contains sugar and sweetener; confirm whether the delivered units are cans or bottles if the container format matters to your party setup.
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Schweppes Original Lemonade 12 × 150ml
A lemon-flavoured, non-tonic option that can be served alone or mixed with gin or vodka. The 12 × 150ml pack contains sugar and sweeteners and carries a source-of-phenylalanine statement; check the exact label for guests with ingredient concerns.
Frequently asked questions
How much mixer is in a 12 × 150ml case?
A 12 × 150ml case contains 1,800ml, or 1.8 litres. That makes twelve 150ml mixer portions if each drink uses one full unit; count additional drinks and mixer styles separately.
Should I choose tonic, slimline tonic or lemonade for gin and vodka?
Choose tonic when the intended drink calls for its bitter quinine flavour, slimline tonic when you want a no-sugar version of that flavour, or lemonade when you need a citrus, non-tonic option. Sainsbury's describes its regular Schweppes tonic and Original Lemonade as suitable for mixing with gin or vodka.
Do regular and slimline tonic have the same sugar content?
No. Sainsbury's lists 7.4g sugars per 150ml for Schweppes Tonic Water 12 × 150ml and 0g sugars per 150ml for its Slimline Tonic Water 12 × 150ml. The Slimline listing also identifies sweetener and a source-of-phenylalanine statement, so check the exact pack when ingredients matter.
What should I check when a guest has an ingredient concern?
Check the ingredients and declarations on the exact current pack before serving it, and ask the guest which ingredients they need to avoid. Both cited Schweppes tonic listings identify quinine, while the Slimline listing carries a source-of-phenylalanine statement; a brand name alone cannot answer a question about a particular drink.
Can I substitute any Fever-Tree or Fentimans pack for a case of twelve?
Check the specific pack count first. Tesco lists Fever-Tree tonic in 8 × 150ml and 15 × 150ml packs, and Fentimans lists Naturally Light Tonic Water in 200ml and 4 × 200ml formats; neither of those stated formats is a 12-pack.