SodaStream Classics Diet Tonic Syrup, 6 x 440 ml

SodaStream Classics Diet Tonic Syrup is a six-bottle drink mix for making diet tonic with carbonated water. Each bottle is listed as 440 ml, and the listing says it can make up to 9 litres, although customer feedback also mentions mixed experiences with expiry dates and the purchase experience.

At a glance

Designed to be added to water after carbonation in a SodaStream machine.
The listing claims each 440 ml bottle makes up to 9 litres of drink.
The product is described as naturally flavoured and as containing no aspartame.
The syrup amount can be adjusted to suit taste, according to the supplied product guidance.

Price

£23.99Save 33%

Reference price: ~~£35.94~~

Price checked: 12 Nov 2026

View offer

Often bought together

SodaStream Pepsi MAX Drink Mix, 6 Pack Sugar Free Cola Syrup for Sparkling Water Makers, Zero Calorie, Max Taste No Sugar, Soda Stream Flavours, Makes 54L, 6 x 440ml

£27.99

Pros and cons

Pros

Six 440 ml bottles provide a multi-bottle supply of tonic syrup.
Customer feedback reports a pleasant taste that is not too sweet and that works well with gin.
Customers also describe it as convenient to use with a SodaStream machine.

Technical specifications

12 specifications

Identity
Brand	sodastream
Model	1424207440

Product and packaging
Item form	Liquid
Container type	Bottle
Flavour	Tonic
Bottle volume	440 Millilitres
Number of items	6
Package size	Pack of 6

Ingredients and properties
Special ingredients	Natural Flavouring, Quinine
Speciality	Sugar-Free, Natural Flavor, Eco-Friendly
Aspartame claim	Contains no aspartame

Dimensions and installation
Weight listed	2.82 Kilograms

What to know before buying

The up-to-9-litre yield is a listing claim, not a guaranteed amount. Actual yield depends on how much syrup is used. Check the selected listing's expiry date, as customer feedback reports mixed experiences with expiry dates and the purchase experience. The listing describes the product as diet and sugar-free, but also labels its sweetness as "Not Sweet". These descriptions do not establish a nutritional profile beyond the claims provided.

Who is it for?

A good fit for

SodaStream owners looking for diet tonic syrup to add after carbonating water.
Buyers who want a multi-bottle supply for tonic drinks and gin mixers.

Less suited to

People who want ready-to-drink tonic rather than a syrup that requires carbonated water.
Buyers seeking a confirmed nutritional breakdown, which is not provided in the supplied details.

SodaStream Classics Diet Tonic Syrup, 6 x 440 ml · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 990 ratings

5 stars75%75%
4 stars14%14%
3 stars5%5%
2 stars3%3%
1 star3%3%

Customer feedback highlights a pleasant, not-too-sweet taste, use with gin, and convenience when mixing with a SodaStream machine. These reports make the syrup a plausible choice for buyers wanting tonic to mix at home, while the listing's claimed yield depends on how much syrup is used. Feedback is mixed on the purchase experience and expiry dates, so the date is worth checking for the selected listing.

Positive themes

Customers report a pleasant taste that is not too sweet and say it works well with gin.
Customers describe it as convenient to use with a SodaStream machine and effective for making diet tonic.

Mixed feedback

Customer feedback is mixed about the purchase experience and expiry dates.

Frequently asked questions

How do you use this tonic syrup?

Carbonate water with a SodaStream machine, then add the syrup and gently mix. The product guidance says to use the recommended amount, which can be adjusted to taste.

How many bottles are included?

The listing describes a pack of six bottles, each with a volume of 440 Millilitres.

How much drink can one bottle make?

The listing claims up to 9 litres per 440 ml bottle. The amount you make will depend on how much syrup you use.

Does the syrup contain aspartame?

The listing says it contains no aspartame and describes the product as sugar-free.