What's actually in your soda? A guide to reading the label

Most soda labels read like a chemistry exam. Here's how to decode them – and why the shortest ingredient lists are usually the best ones.

Pick up a can of mainstream soda and flip it over. You'll find a list of ingredients that can run to fifteen or twenty items. Some of them are hard to pronounce. Some are colours with numbers. A few are things no one outside a food lab has ever heard of. And all of them ended up in your drink for a reason – just not necessarily a good one.

Reading a soda label doesn't require a science degree. It mostly just requires knowing what to look for, and what questions to ask. Here's our honest guide...

Start with the ingredient list

Ingredients are listed in descending order by weight. Whatever appears first is what the drink is mostly made of. In most mass-produced sodas, that's carbonated water – fine – followed fairly quickly by some form of sugar or sweetener.

The ingredients to watch out for tend to cluster into a few familiar categories:

The sugar situation

Sugar gets a lot of bad press, some of it deserved. The type and quantity both matter. A standard 355ml can of mainstream cola contains somewhere around 39 grams of sugar – roughly ten teaspoons. That's not a lot of a lot of things, but it's quite a lot of sugar in one go.

What matters just as much as quantity is quality. Sugars aren't all created equal. Fair Trade organic cane sugar – the kind we use at Six Barrel – is a world away from high fructose corn syrup, both in terms of how it's made and how it behaves in your body.

• Standard cola (355ml): ~39g sugar
• Six Barrel Soda (250ml serve): ~15g sugar

Figures are approximate and vary by flavour.

Natural vs artificial flavours: what's the difference?

This one trips people up. "Natural flavours" sounds reassuring, but it's a legal term – not a quality one. In many countries, it simply means the flavouring agent was originally derived from a natural source at some point in its journey, even if it went through significant processing after that.

“Artificial raspberry” and “natural raspberry flavour” can both be synthesised in a lab. The difference is where the starting molecule came from.

Real fruit flavour – the kind that comes from actually using real fruit – doesn't require any of that. When a drink gets its raspberry flavour from raspberries, the label can just say: raspberries.

Colours: the rainbow problem

Colour additives in soda exist for one reason: to make the drink look how you expect it to look. Real fruit doesn't always produce a vivid, shelf-stable hue. Synthetic dyes do. Many common ones – Red 40, Yellow 5, Blue 1 – are petroleum-derived and have faced ongoing scrutiny from researchers and regulators in different countries.

A drink made with real cherries will look different batch to batch, season to season. That's not a flaw – it's evidence that something real went into it.

Preservatives: why are they even there?

Preservatives extend shelf life. That's useful if you're shipping a product around the world and want it to last eighteen months in a warehouse. It's less necessary if the drink is made in small batches from real ingredients and consumed within a reasonable time frame.

The short label rule

There's no universal "clean label" standard, but a practical test works well: could you buy everything on this ingredient list at a farmers market or good grocery store? If the answer is mostly yes, you're probably in good territory.

Our own soda syrups use ingredients like NZ citrus, Central Otago cherries, organic ginger, organic rose petals, and Fair Trade organic cane sugar. That's it. No preservatives, no artificial colours, no flavours we couldn't point to in a kitchen. Not because we're trying to be pious about it – because drinks made that way simply taste better.

What "sugar free" actually means

Sugar-free sounds like a simple upgrade. Sometimes it is. But the question is always: what replaced the sugar? Many sugar-free drinks swap sucrose for artificial sweeteners – aspartame, acesulfame potassium, sucralose – which have their own ongoing research conversations.

Our Seltz Drops are sugar-free and use naturally-derived flavour with no artificial sweeteners. The answer isn't always "avoid sugar-free" – it's "check what they used instead."

The short version: flip the bottle over. Count the ingredients. Ask if you recognise them. And if the list runs longer than eight or nine items, start asking why.

Soda isn't supposed to be complicated. It's fizzy water and something delicious. The more a label has to explain, the further it's probably drifted from that idea.

Want to see exactly what goes into our drinks? Every ingredient in the Six Barrel range is listed on the product page — no surprises.

Shop our small-batch soda syrups, 330ml cans, and sugar-free Seltz Drops today.