

So… 203 °F = 96 °C…
That’s right on the margin where bubbles are really inevitable. It you are heating the water in a very homogeneous way, and has a lid or some salt dissolved, it’s possible you don’t see any bubble. It’s not common, but hey, everybody sees a few uncommon things in their life.






If you measured the water temperature, the thermometer has a better measurement than the presence of bubbles or not. And it’s the temperature that is important, not the bubbles.