If you are interested in whether the sugar-sweetened version tastes different: slightly, yes. People with a passion for soda will try to convince you that they can detect the difference between high-fructose corn syrup and cane sugar. It’s sort of the same sentiment some people have that Mexican Coke (which also uses cane sugar) is better. Sweeter. Smoother. Less artificial concerns. The truth is, it boils down to your taste buds. Some people purchase the yellow cap of Coke simply for the taste, even if they don’t know what Passover is.
The official stance is that the flavor is largely consistent. The important thing is uniformity. You aren’t supposed to sip it and think “Ahhh yes, this is a religious accommodation.” It’s just Coke. With different sugar patterns.

It’s Not More Expensive (Because That Would Be A Whole Thing)
You typically find Coke with a yellow cap in stores that are situated in strong Jewish demographics—basically, New York or certain parts of L.A. or Miami or Chicago. It shows up on shelves a couple of weeks before Passover and disappears silently afterwards. Blink, and you’ll miss it. Unless you’re looking for it.
The Cap is a Signal, but also a Symbol
While functional, it’s also at least somewhat meaningful. The bright yellow cap means, “Hey, we made a change for you.” It’s not a press release. It’s not an outrageous advertisement. It’s just a little change in plan, hiding in plain view.
For many people, it’s something they anticipate every spring. Like: oh hey, yellow caps are back. That little touch offers an annual moment of acknowledgement and thoughtfulness, and in a time when large brands don’t typically acknowledge niche needs—like, that’s cool.
So the next time you see a yellow cap, now you know
This isn’t random. This isn’t a fad. This isn’t a new Coke flavor they forgot to announce. That lid is important. It means someone, somewhere, made a conscious effort to recognize a community’s tradition, and changed a global product for it.

You don’t have to be Jewish or even celebrate Passover to find that design thoughtful or purposeful. It’s a low-key inclusive moment that doesn’t yell at you from the label. Just a small flash of yellow. Easy to lose. Easy to appreciate.
And there’s also likely someone out there buying a case of yellow-cap Coke just because they’re adamant it tastes better. Honestly? That’s not a horrible reason. Pick one up, drink it cold and enjoy the small pop of meaning hiding in your bottle.