Who is choosing the mixers?

Hosts looking for a no-sugar option

Compare sugars per 100ml, then read the ingredient list. A tonic containing sweeteners and an unsweetened soda water offer different flavours as well as different ingredients.

Guests choosing a lighter tonic

A reduced-calorie tonic may still contain sugar. Compare the nutrition panels of the particular flavours and pack sizes you are considering.

Groups with mixed preferences

Offering both tonic and soda water gives guests a choice between quinine flavour and a more neutral fizzy mixer. Check each pack’s current ingredients for anyone avoiding a particular ingredient.

What should you check?

Start with the sugar requirement, then choose the flavour and pack format that fit the drinks and number of servings planned.

PriorityWhat to checkYour needs
Sugar and calories Compare sugars and energy per 100ml on the same basis. Sainsbury’s lists under 0.5g sugars per 100ml for its Diet Indian Tonic; Fentimans lists 3.4g per 100ml for Naturally Light. A light name alone does not establish zero sugar. I want to know whether avoiding sugar is essential for this picnic, or whether a lighter tonic that still contains some sugar would suit the group.
Sweeteners Read the exact pack’s ingredients. One Stop lists aspartame in Schweppes Slimline Tonic; Sainsbury’s lists acesulfame K and sucralose in its Diet Indian Tonic. If someone avoids a particular sweetener, I need to check the mixer I will actually serve, not assume all diet tonics use the same ingredients.
Flavour Decide whether guests want tonic’s quinine flavour or a more neutral mixer. Coca-Cola Great Britain lists Schweppes Soda Water with carbonated water and sodium bicarbonate; it is not a flavour substitute for tonic. Will the mixer be served on its own, or with drinks for which the group wants a bitter tonic rather than plain fizz?
Servings Compare the volume of each unit and the number in the pack. Work out how many servings you expect before choosing between individual portions and a shared bottle. For a small group with different preferences, I would rather open only the mixer needed for each drink than leave a large bottle unfinished.

Picnic mixer pitfalls

  • Treating “light” as another name for zero sugar

    Fentimans lists 3.4g sugars per 100ml for Naturally Light, despite its reduced-calorie positioning.

    If the mixer needs to have no sugar, check the sugars figure per 100ml on the current pack rather than choosing by its front label.

  • Assuming diet tonics contain the same sweeteners

    The ingredient listings differ: One Stop lists aspartame for Schweppes Slimline, while Sainsbury’s lists acesulfame K and sucralose for its Diet Indian Tonic.

    Check the ingredient list for the exact product you are packing if a guest avoids a particular sweetener.

  • Opening a large bottle for just a few servings

    A shared bottle may leave mixer unused when picnic guests choose different drinks.

    Count the likely servings and consider individual units when preferences vary; choose a shared bottle when you expect to use it promptly.

  • Relying on an old online ingredient listing

    Sainsbury’s notes that product ingredients can change, which matters when choosing for someone with an ingredient restriction.

    Before serving, read the pack’s current ingredients, allergen information, nutrition and storage instructions.

Brand and product-line references

Schweppes

Its Slimline Tonic and Soda Water offer a choice between sweetened quinine tonic and plain soda water.

  • Coca-Cola Great Britain describes Slimline Tonic as having no sugar and lists 0g sugars per 100ml for Schweppes Soda Water.
  • One Stop lists aspartame in Slimline Tonic. Soda water does not provide tonic’s quinine flavour.

Fentimans

Naturally Light and Premium Indian Tonic are distinct tonic choices for shoppers comparing sugar content and flavour.

  • Fentimans lists 18kcal and 3.4g sugars per 100ml for Naturally Light, compared with 20kcal and 4.4g sugars per 100ml for Premium Indian Tonic.
  • Neither of those listed products is a zero-sugar tonic.

Fever-Tree

Its tonic range includes Refreshingly Light Indian and Mediterranean styles.

  • Fever-Tree describes its Refreshingly Light Mediterranean Tonic as having 50% fewer calories than its regular Mediterranean Tonic.
  • That comparison does not mean every Refreshingly Light variant is sugar-free; check the nutrition panel for the exact product.

Sainsbury’s

Its Diet Indian Tonic is an own-label option for comparing tonic sugar and sweetener ingredients.

  • Sainsbury’s lists 2kcal and under 0.5g sugars per 100ml for its Diet Indian Tonic.
  • The listing names acesulfame K and sucralose, and Sainsbury’s advises reading the current pack because ingredients can change.

Joybuy picnic mixer options

These tonic multipacks cover a zero-sugar option, lighter styles and a standard tonic for picnic servings. Compare their ingredients and sugar figures against the preferences of your group.

Schweppes Slimline Tonic Water 12 x 150ml

Schweppes Slimline Tonic Water 12 x 150ml

This 12 x 150ml tonic pack offers separate portions for guests who want a no-sugar quinine tonic. One Stop lists 0g sugars per 100ml and aspartame for Schweppes Slimline; check the current pack if that ingredient matters to your group.

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Double Dutch Skinny Tonic 24 x 200ml

Double Dutch Skinny Tonic 24 x 200ml

The 24 x 200ml pack provides individually sized portions for a larger picnic group. This tonic is not a zero-sugar choice: compare its current sugars figure with your requirement, and confirm the container type if cans or bottles matter for packing.

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Fever-Tree Refreshingly Light Premium Indian Tonic Water 15 x 150ml

Fever-Tree Refreshingly Light Premium Indian Tonic Water 15 x 150ml

This 15 x 150ml pack offers separate portions for guests choosing a light Indian tonic. It is not a zero-sugar option, so check the current sugars figure and ingredients before serving it to anyone avoiding sugar or particular ingredients.

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Fever-Tree Refreshingly Light Mediterranean Tonic Water 8 x 150ml

Fever-Tree Refreshingly Light Mediterranean Tonic Water 8 x 150ml

The 8 x 150ml pack offers separate servings of Mediterranean-style light tonic. Fever-Tree describes this variant as having 50% fewer calories than its regular Mediterranean Tonic, but it is not a zero-sugar choice; read the pack’s sugars figure and ingredients.

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Schweppes Indian Tonic Water 12 x 150ml

Schweppes Indian Tonic Water 12 x 150ml

This 12 x 150ml standard tonic pack suits a group choosing tonic rather than a diet-focused mixer; it is not a zero-sugar option. Check the current label for sugars and ingredients, and confirm whether the pack contains cans or bottles if the container matters for your picnic.

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Questions about picnic mixers

Does “light” tonic mean zero sugar?

No. Fentimans lists 3.4g sugars per 100ml for Naturally Light Tonic. Read the nutrition panel if avoiding sugar is the reason for choosing a mixer.

What can I serve if guests want neither sugar nor sweeteners?

Plain soda water is an option if guests are happy without tonic flavour. Coca-Cola Great Britain lists Schweppes Soda Water at 0g sugars per 100ml with carbonated water and sodium bicarbonate; it will not provide tonic’s quinine bitterness.

How do I compare mixers in different pack sizes?

Compare their nutrition figures per 100ml first, then consider how much of each mixer you expect to serve. For example, Sainsbury’s lists under 0.5g sugars per 100ml for its Diet Indian Tonic, while Fentimans lists 3.4g per 100ml for Naturally Light.

What if a picnic guest avoids a particular ingredient?

Read the current pack’s ingredient and allergen information before serving. Diet tonics can use different sweeteners: One Stop lists aspartame for Schweppes Slimline, whereas Sainsbury’s lists acesulfame K and sucralose for its Diet Indian Tonic.