If you're a Fressko fan, you already know about the internal fill line - one of our favourite little design details that takes the guesswork out of your order. It's there so your barista knows exactly where to pour to, giving you the perfect ratio every time. No watered-down lattes. No disappointment.
But here's the thing about real life: it moves fast. Cafe mornings are busy, muscle memory is powerful, and filling a cup to the brim is second nature for most baristas. Lids usually just sit on top, right? So you can hardly blame them.
You know the moment. You watch the coffee get poured just a little too high. You hand over your Fressko. You cringe as the lid goes on and coffee begins to creep out the sides, or you find yourself frantically sipping a too-hot latte in the middle of a cafe just to get the level back under the line. We've all been there.
Here's what's actually happening
When your cup is overfilled, and the lid is placed on top, the vacuum seal creates pressure inside the cup. That pressure has to go somewhere, and unfortunately, it goes sideways. Out of the lid. Down the side of your beautiful cup. Onto your hand, your bag, your day. It's not a flaw. It's physics. But there's a simple fix.
The overfill hack
Next time your coffee goes over the fill line, try this before the lid goes on:
