Hosts planning around 12 gin and tonics
A 12 × 150ml pack contains 1.8 litres. It covers 12 drinks if each uses 150ml of tonic, as in Hendrick's Gin's recipe with 50ml of gin.
Who is a case of 12 for?
A 12 × 150ml tonic pack suits plans based on 150ml portions, but the number of drinks depends on how much tonic each guest pours.
Hosts offering a no-sugar choice
Sainsbury's lists the Schweppes Slimline 12 × 150ml pack as no sugar and containing sweetener. Check its phenylalanine declaration when choosing drinks for guests.
Hosts choosing tonic for a particular gin
If the tonic's ingredients matter to the drinks you plan to serve, compare them before settling on a pack. Fentimans describes its Premium Indian Tonic Water as containing herbal infusions, Sicilian lemon oil and lemongrass extract.
What should you check before buying?
Start with the planned tonic pour and number of drinks, then choose a formulation and check the pack format.
| Priority | What to check | Your needs |
|---|---|---|
| Enough tonic | Check the number and size of containers. A 12 × 150ml pack holds 1.8 litres and covers 12 pours of 150ml, not necessarily 12 guests. | I'm planning the number of drinks, including any top-ups or tonic served without alcohol. |
| Formulation | Compare the ingredient and nutrition labels on the actual packs. Sainsbury's describes its regular Schweppes 12-pack as containing sugar and sweetener, and its Slimline pack as no sugar and containing sweetener. | A no-sugar option matters for some guests, while others may want the regular formulation. I'll check the Slimline pack's phenylalanine declaration too. |
| Flavour and format | Check the tonic ingredients against the drinks you plan to mix, then compare unit count and container size. Tesco Groceries lists Fever-Tree Light Indian Tonic Water in a 15 × 150ml pack rather than a case of 12. | For a particular gin, I may put the tonic's ingredients ahead of an exact 12-unit pack. |
Common planning mistakes
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Assuming every party pack contains 12 mixers
Pack counts vary: Sainsbury's lists Schweppes tonic in 12 × 150ml packs, while Tesco Groceries lists Fever-Tree Light Indian Tonic Water in a 15 × 150ml pack.
Check the unit count, container size and total volume against the drinks you intend to make.
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Treating slimline as the same formulation as regular tonic
The cited Schweppes regular tonic contains sugar and sweetener; the Slimline pack is labelled no sugar and contains sweetener. The Slimline product also has a phenylalanine declaration.
Read the ingredients and declarations on the actual packs before serving, particularly when guests have specified ingredient requirements.
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Counting one can per guest without counting drinks
Twelve 150ml cans cover 12 drinks only at a 150ml tonic pour. Second drinks, larger pours and tonic without alcohol draw from the same pack.
Estimate the total number of tonic serves you expect, then calculate how many packs that requires.
Tonic brands and pack formats
These brand examples illustrate formulation and pack-size differences; check the specific product when an exact case of 12 matters.
Schweppes
Sainsbury's lists both regular and Slimline Schweppes tonic in 12 × 150ml packs.
- The regular listing describes a quinine tonic containing sugar and sweetener.
- The Slimline listing is no sugar but contains sweetener; check the product's phenylalanine declaration.
Fever-Tree
Tesco Groceries lists Fever-Tree Light Indian Tonic Water in a 15 × 150ml can pack.
- The listed 150ml cans can be counted as individual mixer portions.
- That listed pack contains 15 cans, so it does not meet an exact 12-unit requirement.
Fentimans
Fentimans describes its Premium Indian Tonic Water using specific botanical and citrus ingredients.
- The manufacturer lists herbal infusions, Sicilian lemon oil and lemongrass extract.
- Check the format of the particular Fentimans product if you need exactly 12 portions.
Britvic
Britvic includes a low-calorie Indian tonic in its mixer range.
- It offers another tonic formulation to compare with the planned drinks.
- Britvic declares a source of phenylalanine for its low-calorie tonic; check the specific product label and pack count.
Joybuy tonic options
These Joybuy options are regular and Slimline Schweppes tonic in 12 × 150ml packs for a garden-party drinks station.
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Schweppes Slimline Tonic Water 12 × 150ml
A no-sugar tonic option for 12 drinks using 150ml each. It contains aspartame and has a phenylalanine declaration; check the actual pack before serving guests with relevant ingredient requirements. Larger pours or additional drinks need more tonic.
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Schweppes Indian Tonic Water 12 × 150ml
A regular tonic option for a gin or vodka drinks station. This pack contains 12 portions of 150ml; the formulation contains quinine, sugar and sweetener, so it is not the no-sugar option. Allow more tonic if guests may have additional drinks or larger pours.
Garden party mixer questions
How many drinks will a 12 × 150ml tonic pack cover?
It covers 12 drinks if each uses one 150ml portion of tonic. The pack contains 1.8 litres; larger pours, top-ups and additional drinks will reduce the number of serves it covers.
Should I buy regular or slimline tonic for a mixed group?
Choose according to the formulations guests need rather than assuming they are interchangeable. Sainsbury's describes its regular Schweppes 12-pack as containing sugar and sweetener and its Slimline 12-pack as no sugar and containing sweetener; check the Slimline pack's phenylalanine declaration as well.
What should I check on the pack before serving tonic?
Check the ingredients, relevant declarations, container size and date on the actual pack. UK government food-labelling guidance identifies ingredients, net quantity and a best-before or use-by date as information to look for on pre-packed food and drink.
How should I store tonic before the party?
Follow the storage instructions on the particular pack and check its date before serving. Do not assume that instructions for one mixer apply to every product.