Zero sugar wasn't an afterthought. It was the whole point.

It starts with a number

When you have Type 1 diabetes, sugar isn't something you can be vague about. Every gram matters. Not because you're being strict with yourself, but because your body has no system to manage it for you. You read labels not as a lifestyle choice but as a necessity, and over time you develop a fluency in hidden sugars that most people never need.

Linsay, one of Teto's founders, has lived with Type 1 diabetes since childhoos. Long before Teto existed, she was the person at a restaurant or a party scanning the soft drink menu and coming up short. Water, again. Or something loaded with sweeteners that tasted like a compromise.

The gap no one had filled

The problem wasn't a lack of options. There were plenty of drinks. There just weren't many good ones - not if you wanted something genuinely sugar-free (not low-sugar, not sweetened with something else) that also tasted like it belonged in a nice glass.

The sugar-free drinks that existed were mostly diet versions of something else. Fizzy, slightly medicinal, designed around the idea of deprivation. What Linsay wanted was something that was zero sugar by design - not because the sugar had been removed, but because it was never needed in the first place.

The case for naturally zero

Cold-brew tea, it turns out, is already quite interesting on its own. Hibiscus brings a floral tartness. Sencha has a clean, mineral quality. Goji berry adds depth. The botanicals do the work that sugar usually does - they make a drink worth sipping - without any of the glucose.

Teto isn't marketed as a diabetes drink. It's not positioned as a health product or a wellness option. It's just a properly made soft drink that happens to contain no sugar, because the ingredients never required it. That distinction matters. Nobody wants to be handed a drink that signals how careful they have to be. They just want something that's genuinely good.

Why it matters beyond the label

About 4.3 million people in the UK are living with diabetes. Many more are reducing sugar for other reasons - health, energy, preference, or simply because they've started reading what's actually in their drinks. They're not a niche audience. They're people who've been underserved by a market that treats zero sugar as a category for compromise rather than a starting point for quality.

Linsay built Teto for herself first. A drink she could pour without doing mental arithmetic, that still felt social and adult and worth having. The fact that it fills a gap for a lot of other people too isn't coincidental - it's what happens when you design from a real need rather than a marketing brief.

Just tea, botanicals and bubbles

That's still the whole thing. No sugar. No sweeteners. Nothing hidden. If you've been looking for a soft drink that doesn't require checking the label twice, this was made with you in mind.