[sotix]

I have a different experience than the other commentator with my toaster’s bagel button. Both sides still get heated. My bagel button makes the toasting cycle last longer than normal, which is perfect for defrosting a frozen bagel and then toasting to the setting the wheel is set to.

[arghwhat]

Is it labelled "bagel", or is it a symbol that could be interpreted? What you describe is what the "defrost" feature of the linked circuit would do.

I have certainly misinterpreted iconography completely before...

[sotix]

It's labeled bagel, and there is a separate defrost button. According to this[0] manual from Cuisinart, "The bagel feature adds extra time to the toasting cycle to allow for thicker breads." So there's our answer!

[0] https://www.cuisinart.ca/on/demandware.static/-/Sites-ca-cui...