What is Citric Acid and Why Is It in Sodas?

What is Citric Acid and Why Is It in Sodas?

Once upon a time, a soft drink was something you ordered because you were thirsty. Not because you were optimising your microbiome, healing unresolved childhood trauma, or trying to become a technically unemployed Scandinavian longevity guru with a failing podcast.

Now every ingredient feels like a small philosophical debate.

Citric acid, for example.

It sits there quietly on ingredient lists across sodas and sparkling waters, minding its own business, while for some reason only you are asking: What is citric acid and should I be worried about it?

Fair question.

Citric acid is a naturally occurring compound found in citrus fruits like lemons and limes. It’s the reason a lemon tastes bright rather than vaguely sweet and disappointing. In beverages, citric acid does a few very sensible things. It sharpens flavour, balances sweetness, preserves freshness and keeps carbonation feeling lively. Without it, most sodas would taste flat. Like lemonade that forgot the lemon.

At StrangeLove, acidity isn’t some shady ingredient hiding behind the curtain. It’s part of what makes a drink actually taste like a drink.

If you’d prefer a practical demonstration rather than a chemistry lecture, our Lo-Cal Sodas and Sparkling Waters are ready when you are.

What Exactly Is Citric Acid?

If we strip away the mildly intimidating name, citric acid is simply a natural organic acid found in citrus fruits. Lemons, limes, oranges and grapefruits all contain it, and it’s largely responsible for that bright, tart taste we associate with citrus.

So when people search “what is citric acid”, the answer is less “industrial chemical” and more “the thing making your lemon taste more like a lemon.”

Commercially, citric acid is usually produced through fermentation. Natural microorganisms convert sugars into citric acid in a controlled environment. It’s a process that’s been used safely for decades in food and beverage production.

In drinks, citric acid performs several useful roles:

• Enhancing tartness and citrus brightness
• Balancing sweetness so drinks don’t taste like melted lolly water
• Preserving freshness and stability
• Helping carbonation feel crisp rather than lazy

That’s why citric acid in soda is incredibly common. Without a touch of acidity, most soft drinks would lean heavily toward sweetness and lose the refreshing edge people expect.

In short, citric acid isn’t there to complicate your life.

It’s there to stop soda tasting like sugar slop.

Why Is Citric Acid Added to Sodas?

If you’ve ever wondered why citric acid is in drinks, the answer is pleasantly simple.

Because flavour needs structure.

Soft drinks operate on a delicate balance between sweetness, carbonation and acidity. Remove one of those and the drink starts to feel slightly confused about its purpose, kind of like you after being asked to present a ‘fun fact’ about yourself in a work meeting

Citric acid helps hold that structure together.

Flavour balance

Sweetness on its own becomes overwhelming very quickly. A touch of acidity cuts through sugar and brings clarity to the flavour.

Without acidity, a lemon soda would taste like someone whispered the word “be more lemon” into a glass of sugar water.

Preservation

Citric acid also helps stabilise beverages by discouraging microbial growth. In other words, it helps drinks stay fresh and behave themselves on the shelf.

Texture and carbonation

Acidity influences how carbonation feels on the palate. Citric acid sharpens the sensation of bubbles, making sparkling drinks feel bright, lively and refreshing.

Some large commercial sodas rely on extremely high sugar levels, then push acidity quite aggressively to balance the syrup. That combination can sometimes feel harsh and contribute to concerns around dental sensitivity or digestive irritation.

Balanced drinks take a different approach.

For example, our Lo-Cal Lemon Squash uses acidity to lift natural citrus flavour rather than whip  it into submission.

Is Citric Acid Good or Bad for You?

This is usually where the internet arrives carrying a pitchfork.

Search “is citric acid bad for you” and you’ll find a mixture of useful information and people who appear to believe lemons are part of a broader conspiracy. Somewhere in the middle sits the truth, quietly wondering how fruit became the villain of the story.

The reality is considerably calmer.

Citric acid occurs naturally in many fruits and is widely recognised as safe when consumed in normal amounts. Lemons, limes and oranges have been handling this responsibility for centuries with minimal drama. No public statements. No apology tours. Just fruit quietly doing fruit work.

In fact, citric acid plays a role in the body’s natural metabolic processes and appears in the citric acid cycle, which sounds complicated but is essentially how cells produce energy. Your body has been running this system successfully since birth while you were busy doing more important things like refreshing Instagram and pretending to understand tax.

There are also a few modest citric acid benefits. It can assist with mineral absorption and has mild antioxidant properties in certain foods. Nothing miraculous. No glowing skin or spiritual awakening. Just competent chemistry quietly getting on with things.

That said, context still matters.

Highly acidic drinks consumed constantly, particularly sugary ones, may contribute to dental enamel wear over time. Teeth, while durable, were not designed to spend their entire existence bathing in syrup.

Some people also experience mild sensitivity to acidic foods or beverages. Citrus can occasionally be a bit intense. Like a motivational speaker who had too much coffee.

But again, this usually has more to do with the overall drink formulation than citric acid alone.

A soda loaded with sugar and aggressive acidity behaves very differently from a balanced beverage designed with flavour in mind. One tastes bright and refreshing. The other tastes like someone tried to invent happiness using a measuring jug.

Which is where formulation becomes important.

StrangeLove’s Take on Citric Acid in Sodas

At StrangeLove we spend a reasonably unreasonable amount of time thinking about drinks.

Not about changing your life. Not about creatine. Or protein. Or any kind of ‘tine’ actually. In fact we would be sorely disappointed if any of our drinks turned you into the sort of person who wakes up at 4:45am to journal beside a Himalayan salt lamp.

Just drinks.

Great ones.

Which is where citric acid comes in. Not as the star of the show, and certainly not as the villain. It’s more like the quiet professional in the background making sure everything stays lively and balanced.

Without acidity, soda becomes a bit sad. Too sweet. A little floppy. Like a lemon drink that forgot the lemon, causing you to send us angry emails about our lacklustre lemons

So we build flavour properly. Citrus oils. Botanicals. A sensible amount of acidity. Enough to keep things bright without punching you in the face.

The result is fairly straightforward:

• Natural botanicals and citrus extracts doing the heavy lifting
• Lower sugar Lo-Cal sodas that still taste like actual drinks
• No artificial sweeteners trying to impersonate sugar
• Australian-made sodas bottled in glass, because we’re stubborn like that

Citric acid still plays its role of course. It sharpens flavour. Keeps the drink fresh. Stops sweetness from getting out of hand.

Think of it less like a headline ingredient and more like seasoning in cooking. Invisible when it’s right. Very obvious when it’s missing.

Which, if we’re being honest, is how most of our drinks are built. Quiet balance rather than confusing chemistry.

If you’re curious how that tastes, you can explore the Lo-Cal Sodas or read more about our mildly obsessive drink-making habits on the ‘A StrangeLove Story’ page.

Citric Acid Beyond Sodas – Everyday Uses

Citric acid doesn’t just appear in soft drinks.

It pops up all over the place. Quietly. Efficiently. Like the sort of person who does the group project properly while everyone else is at the pub.

You’ll find citric acid in foods like jams, confectionery and sauces where it helps regulate acidity and preserve freshness. Without it, many of those products would taste flat, overly sweet, or vaguely confused about their purpose.

It also appears in dietary supplements and certain pharmaceuticals because of its role in metabolism and mineral absorption. Your body understands citric acid perfectly well. Humans with nothing better to do than argue about it on the internet, less so.

So while the name might sound slightly scientific on an ingredient list, citric acid is actually one of the most widely used and well-understood compounds in modern products.

The Final Sip: Balance Over Excess

Citric acid sounds dramatic on an ingredient list, but in reality it’s just one of the tools that makes drinks taste bright, refreshing and vaguely exciting.

Like salt in cooking. Or bitterness in coffee. The right amount sharpens everything.

Push it too far and things unravel quickly. Empires collapse. You cut your own bangs. Someone invents a drink with thirty grams of hidden sugar and calls it “wellness”.

Good soda sits somewhere in the middle.

That’s the territory StrangeLove prefers. Citrus doing its thing. Botanicals adding a bit of intrigue. Reasonable amounts of sugar to carry flavour. Proper formulation quietly keeps everything balanced while nobody makes a big deal about it.

Because the goal here isn’t to reinvent hydration or unlock your best self.

It’s to master flavour and make a bloody good drink.

If you’d like to taste what that balance looks like in a bottle, try Lo-Cal Lemon Squash or the bright citrus character of Yuzu Sparkling Water.

Explore Our Natural, Low-Sugar Sodas

If you’ve made it this far into a blog about citric acid, congratulations. Your curiosity is impressive and possibly slightly concerning.

Either way, you deserve a drink.

You can browse the full Lo-Cal Sodas collection or explore our Sparkling Water range, both of which exist for the deeply unfashionable reason of tasting good.

You might also enjoy:

• Mineral Water vs Sparkling Water
• Ginger Ale vs Ginger Beer: The Differences Explained

Because sometimes the best drink is simply the one you enjoy. And we are paid to tell you, that drink is probably made by StrangeLove.