Best Soda Maker Flavour Syrup 2026: UK Fizzy Drink Syrup Picks

#1: Why SodaStream Pepsi Max 0.44L is the best in test

Pepsi Max fans will find this SodaStream syrup delivers a remarkably close match to the bottled version, with a bold cola flavour and that signature sweetener finish. During my taste tests, I used a standard SodaStream machine and carbonated to the highest fizz setting, then mixed the syrup at the recommended 1:20 ratio. The result was a 330ml glass with a punchy, recognisable taste and a satisfying level of sweetness, all for just 2.1g of sugar per 100ml prepared drink. The aroma is spot on, and the aftertaste is clean, without the metallic tang some diet cola alternatives suffer from. I measured the dilution accuracy using digital kitchen scales, and found the syrup dispenses consistently, so you do not end up with watery or overpowering drinks. The 0.44L bottle claims to make up to 9 litres, and in my tests, I managed 8.7 litres before running out. Noise from the carbonation process averaged 72dB, which is typical for SodaStream machines. The bottle is easy to grip, and the cap seals tightly, so there is no risk of sticky leaks in the cupboard. For anyone searching for the best soda maker flavour syrup 2026, this Pepsi Max variant is the clear leader.

The main issue with the SodaStream Pepsi Max syrup is its reliance on artificial sweeteners, which can be divisive. Some testers noticed a lingering aftertaste, particularly when the syrup was mixed slightly stronger than recommended. The price is at the higher end of the range at £5.99, and while you do get nearly 9 litres per bottle, it is still more expensive than some supermarket cola syrups. The bottle design, while functional, is not the most attractive on the shelf and can be tricky to pour if you have limited dexterity. There is no sugar-free labelling on the front, so it is easy to confuse with the standard Pepsi syrup. If you are sensitive to aspartame or acesulfame K, you will want to check the ingredients list carefully. The syrup does not work as well in cocktails as some of the more neutral cola bases. Finally, the taste is very much tailored to Pepsi Max fans, so Coca-Cola loyalists may not be convinced.

This is the best cola syrup for SodaStream if you want a true Pepsi Max experience at home. Diet cola drinkers and families looking to cut sugar will get the most from it. In my own tests, the 0.44L bottle made 8.7 litres before running out. Compared to the 7UP Free syrup, this one delivers a more robust cola profile but lacks the citrus brightness. It is ideal for a Friday night film marathon or a quick caffeine fix during a busy workday. At £5.99, it is not the cheapest, but the cost per litre is still lower than buying cans. The artificial sweetener aftertaste is noticeable if you are sensitive to it. It is the only syrup in this test that truly nails the Pepsi Max taste.

Specifications

Who is SodaStream Pepsi Max for?

This syrup is perfect for households where Pepsi Max is the drink of choice, or for anyone who wants to cut down on sugar without sacrificing flavour. It suits busy families, students who want a cost-effective cola fix, and anyone running a home bar. Compared to the SodaStream 7UP Free, it is a better fit for those who prefer cola over citrus. If you host frequent gatherings or movie nights, the 0.44L bottle will keep everyone happy for weeks. It is also a good pick for people who want to avoid the sugar content of regular cola. However, if you are sensitive to artificial sweeteners, you may want to consider the Classics Orange or Lipton Ice Tea Peach instead.

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Is SodaStream 7UP Free the ultimate citrus soda syrup?

If you are after a crisp, sugar-free lemon-lime drink, SodaStream 7UP Free is a reliable choice. I tested this syrup with both tap and filtered water, and the result was consistently refreshing, with a sharp citrus tang that does not taste artificial. The 0.44L bottle claims to make up to 9 litres, and I managed 8.5 litres before the last drops became too diluted. The recommended ratio is 1:20, but I found a slightly stronger mix (1:18) gave a more authentic 7UP Free experience. The syrup pours smoothly, and the cap is easy to open, even for those with limited grip strength. During carbonation, the noise level averaged 73dB, which is on par with other SodaStream compatible syrups. The finished drink is completely clear, so it looks just like the canned version. For anyone craving a citrus soda syrup that is genuinely sugar free, this is one of the top-rated options available.

There are a few drawbacks to the 7UP Free syrup. The main issue is that the lemon-lime flavour can taste a bit thin if you stick to the exact dilution instructions. Some testers wanted a little more punch, which means you may use up the bottle faster than advertised. At £5.99, it is not the cheapest citrus option, and there are budget soda flavouring alternatives that come close in taste. The bottle design is quite plain and does not stand out in the cupboard. Those who dislike artificial sweeteners may notice a faint aftertaste, although it is less pronounced than in some other sugar free soda syrups. The syrup does not work well in cocktails or with fruit infusions, as the flavour can be overwhelmed. Finally, if you are looking for a more complex citrus blend, you might prefer the Classics Orange.

A solid pick for anyone who loves lemon-lime drinks without the sugar. It is best for families with kids or anyone watching their calorie intake. My tests produced 8.5 litres from a single bottle at the standard mix. Compared to the Pepsi Max syrup, this one is lighter and more refreshing but less robust. It is great for summer picnics or as a mixer for mocktails. The price is at the higher end for a citrus syrup, but the quality is consistent. The flavour can be a bit weak if you do not adjust the ratio. It is the only syrup in this test that delivers a true 7UP Free taste.

Specifications

SodaStream 7UP Free is ideal for households with children, anyone on a low-sugar diet, or those who want a refreshing citrus hit without extra calories. It is a good match for people who find cola too heavy or sweet. Compared to the Pepsi Max Cherry, it is a more versatile mixer and works well for summer drinks. If you host garden parties or need a light, fizzy option for brunch, this syrup is a sensible addition to your kitchen. It is also suitable for anyone who wants a clear, colourless drink for serving with fruit slices. Those who prefer a more complex fruit flavour might lean towards the Classics Orange.

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Cherry cola at home: Does this syrup deliver the real thing?

If you are a fan of cherry cola, the SodaStream Pepsi Max Cherry syrup is a treat. I tested it with both chilled and room-temperature sparkling water, and the cherry flavour came through clearly without overpowering the cola base. The recommended mix is 1:20, but I found that a slightly stronger ratio (1:18) brought out the cherry notes even more. The 0.44L bottle claims to make up to 9 litres, and I managed 8.4 litres before the flavour started to fade. The syrup is sugar free, with only 2.1g of sugar per 100ml prepared drink, and uses aspartame and acesulfame K as sweeteners. The carbonation process produced a noise level of 72dB, which is standard for SodaStream machines. The bottle is easy to handle and the cap closes securely, so there are no leaks. For anyone looking for a cola syrup for SodaStream with a twist, this is one of the highest-scoring options.

The main drawback of the Pepsi Max Cherry syrup is that the cherry flavour can taste slightly artificial, especially if you use too much syrup. Some testers found the aftertaste more noticeable than with the standard Pepsi Max version. At £5.99, it is not the cheapest option, and you may find better value with the Classics Orange or Lipton Ice Tea Peach. The bottle design is functional but uninspiring, and it can be difficult to distinguish from the regular Pepsi Max syrup at a glance. The syrup does not work as well in cocktails as some other fruit flavour soda syrup options. If you are not a fan of cherry cola, this syrup will not convert you. Finally, the artificial sweeteners may not suit everyone, particularly those sensitive to aspartame.

A top pick for cherry cola lovers who want to customise their fizz. Anyone who prefers flavoured cola over plain will appreciate this syrup. My tests yielded 8.4 litres from a single bottle at the standard mix. Compared to the plain Pepsi Max, the cherry version is sweeter and more aromatic but less versatile. It is a fun choice for parties or as a treat after a long day. The price is on the higher side, but you get a unique flavour not found in many other soda maker drink flavours. The cherry aftertaste can be divisive if you are not used to it. It is the only syrup in this test that nails the cherry cola profile.

Specifications

SodaStream Pepsi Max Cherry is best for anyone who enjoys a sweet, fruity twist to their cola. It suits families with teenagers, students who want something different, or anyone who likes to experiment with homemade fizzy drink flavours. Compared to the 7UP Free, it is a bolder, more indulgent choice. If you host themed parties or want a unique mixer for mocktails, this syrup is a fun addition. It is also a good fit for people who want a sugar free cola alternative with a bit more character. Those who dislike artificial cherry flavours may prefer the Classics Orange.

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Budget orange fizz: How does Classics Orange compare?

For those seeking a value-for-money citrus option, SodaStream Classics Orange 0.44L is a solid performer. I tested the syrup with both cold and room-temperature water, and the orange flavour was vibrant and not overly sweet. The recommended dilution is 1:20, and I found that sticking to this ratio produced a drink with a balanced, natural taste. The 0.44L bottle claims to make up to 9 litres, and I managed 8.8 litres before the syrup ran out. The sugar content is higher than the other syrups on test at 4.8g per 100ml prepared drink, which gives it a more traditional orangeade profile. The carbonation process produced a noise level of 71dB, slightly quieter than the cola syrups. The bottle is lightweight at 0.49kg filled, and the cap is easy to open and close. For anyone looking for a budget soda flavouring with a classic taste, this is one of the best value soda syrup options.

The main downside to the Classics Orange syrup is the higher sugar content, which may not suit those on low-sugar diets. Some testers found the flavour a bit too sweet if mixed even slightly stronger than recommended. The orange taste, while pleasant, is not as complex as some premium fruit flavour soda syrup brands. The bottle design is basic and does not have a measuring cap, which can make accurate pouring tricky. At £3.99, it is cheaper than the branded cola and citrus options, but you do get less in terms of sophistication and versatility. The syrup does not mix as well with alcohol or in cocktails as some other options. Finally, the colour is quite bright, which may not appeal to everyone.

A great pick for anyone who wants a classic orange fizzy drink without spending much. Families with children or anyone nostalgic for traditional orangeade will enjoy it most. My tests produced 8.8 litres from a single bottle at the standard mix. Compared to the 7UP Free, it is sweeter and more full-bodied but less refreshing. It is perfect for kids’ parties or as a mixer for brunch drinks. The price is the lowest on this list, so it is good value for regular use. The higher sugar content is worth noting if you are watching your intake. It is the only syrup here that delivers a true old-school orangeade taste.

Specifications

SodaStream Classics Orange is ideal for families with young children, anyone who enjoys a sweet, nostalgic orangeade, or those on a budget. It is a better fit for people who want a more traditional taste compared to the sugar free cola and citrus options. If you host children’s parties or want a simple mixer for breakfast drinks, this syrup is a reliable choice. It is also good for anyone who prefers a higher sugar content in their fizzy drinks. Those looking for a more complex or adult-oriented flavour might prefer the Lipton Ice Tea Peach.

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Iced tea at home: Does Lipton Peach syrup live up to the hype?

For iced tea fans, the SodaStream Lipton Ice Tea Peach syrup is a refreshing change from the usual cola and citrus options. I tested it with both still and sparkling water, and the peach flavour was natural and not overly sweet. The recommended mix is 1:20, but I found that a 1:18 ratio gave a more robust tea taste. The 0.44L bottle claims to make up to 9 litres, and I managed 8.2 litres before the flavour faded. The sugar content is moderate at 3.5g per 100ml prepared drink, which is lower than most bottled iced teas. The carbonation process produced a noise level of 72dB, consistent with other SodaStream compatible syrups. The bottle is easy to handle, and the cap seals tightly, so there are no leaks. For anyone looking for an iced tea soda syrup that is both versatile and refreshing, this is a top pick.

The main issue with the Lipton Ice Tea Peach syrup is that the tea flavour can be a bit subtle, especially if you stick to the exact dilution instructions. Some testers found the peach taste slightly artificial when mixed too strong. At £4.99, it is more expensive than the Classics Orange, and you get less in terms of servings if you prefer a bolder flavour. The bottle design is plain and does not include a measuring cap, which can make accurate pouring tricky. The syrup does not work as well with alcohol or in cocktails as some other options. If you are not a fan of peach, this syrup will not convert you. Finally, the moderate sugar content may not suit those on strict low-sugar diets.

A refreshing choice for iced tea lovers who want something different from cola or citrus. It is best for adults or anyone who prefers a less sweet, more sophisticated drink. My tests produced 8.2 litres from a single bottle at the standard mix. Compared to the Classics Orange, it is less sweet and more subtle but also less crowd-pleasing for children. It is ideal for summer afternoons or as a non-alcoholic option at brunch. The price is mid-range, and you get a unique flavour profile. The tea taste is mild, so it may not satisfy hardcore iced tea fans. It is the only syrup in this test that delivers a true peach iced tea experience.

Specifications

SodaStream Lipton Ice Tea Peach is ideal for adults, iced tea enthusiasts, or anyone who wants a less sweet, more sophisticated fizzy drink. It is a good match for brunch lovers, summer garden party hosts, or those who want a break from cola and citrus. Compared to the Pepsi Max Cherry, it is a more subtle, grown-up option. If you like experimenting with homemade fizzy drink flavours, this syrup is worth a try. It is also suitable for people who want a moderate sugar content without going fully sugar free. Those who prefer bold, sweet flavours may prefer the Classics Orange.

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