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Pairs nicely with
Squash, retired.
The best water flavouring in the UK.
Squash, drops, tablets, sachets. They all make water taste of something. Here’s how to pick one that doesn’t sneak the sugar back in.
Reviewed 26 October 2026 by the Spruce team. General information, not medical advice.
The short answer.
The best water flavouring is sugar free, tastes of real fruit and is easy enough that you keep using it. Check the label for sugar first, then for where the flavour comes from. If it gets you drinking more water and doesn’t add sugar, it’s doing its job.
Different glass, different moment.
When do
you want it?
Pick the moment and we’ll match a Spruce flavour to it.
01I want it
02Your match
See the flavour ↗
No nutrition degree needed.
What to check
on the label.
Four things separate a good water flavouring from squash in disguise.
- 01Sugar“Of which sugars” per serving. Plenty of squash and cordial still carries sugar, even when the label says fruit.
- 02SweetenerSugar-free options use sweeteners instead. All approved, so it comes down to what you’d rather have. We use stevia.
- 03Flavour“Flavouring” can mean almost anything. Real fruit near the top of the ingredients is a good sign.
- 04Cost a glassA big bottle can look cheap until you work out the glass. Divide the price by the servings.
Know what’s in the glass.
How the options
compare.
Same job, four very different ways of doing it.
Show the comparison table
| Feature | Squash and cordial | Liquid water drops | Effervescent tablets | Spruce sachets |
|---|---|---|---|---|
| Sugar | Varies. Check the label | Usually none | Usually none | 0g |
| Sweetened with | Sugar or sweeteners | Usually sweeteners | Usually sweeteners | Stevia |
| Flavour from | Juice and flavourings | Flavourings | Flavourings | Real fruit powder |
| Something extra | Rarely | Sometimes | Often vitamins | Vitamins or magnesium, depending on the blend |
| Strength | Pour to taste | Squeeze to taste | One tablet | One sachet, same every time |
Fruit flavours are naturally a little acidic, so have fruity drinks with meals when you can and keep some plain water in your day too.
Pennies, not pounds.
What it costs
a glass.
One sachet flavours one glass or bottle, 300 to 500ml. Less water makes it bolder.
- One box, 12 sachets
- £8.99 about 75p a glass
- 4-box bundle, 48 sachets
- £25 about 52p a glass
- 12-box bundle
- £62 about 43p a glass
The squash swapLime & Mint
The all-dayerRaspberry & Elderflower
The 3pm oneBlack CherryLess wondering. More water.
Quick
questions.
The things people ask about water flavouring.
What is the best water flavouring in the UK?
One that’s sugar free, tastes of real fruit and that you’ll keep using. Spruce sachets are 0g sugar, made with real fruit powder and sweetened with stevia, with vitamins or magnesium depending on the blend.
Is water flavouring good for you?
A sugar-free one is a simple way to make water more appealing, and flavoured water still counts towards your daily fluid. There’s more in our guide: is flavoured water good for you?
Is stevia safe?
Yes. Stevia is an approved sweetener in the UK (E960). We explain more in stevia vs sugar.
How much water does one sachet flavour?
One sachet flavours 300 to 500ml of still or sparkling water. Less water makes it bolder.
How much does it cost a glass?
About 75p a glass from a single box of 12 sachets for £8.99, and about 43p a glass in the 12-box bundle.
Do you deliver across the UK?
Yes, we deliver UK-wide from spruce-water.com.