OK, so I tried steaming the last two meals - back to boiling for us.
The first one came out good, but I actually had several inches of water, and we use the deep pasta-style basket in our 6 Qt pot. The corn was half-submerged, and I turned it every two minutes.
So you boiled it steaming is when the water is below the streamer basket. In a 4 or 6 qt pot I put 1" of water and 4-6 ears of corn into the basket. I start to time it when the water starts to boil for 6 minutes.
The second time, I kept the water just at the basket level for a true steaming, and I kept turning it
unnecessary, but I could see that it was darker colored on some sides than others. It just did not get cooked evenly. Wasn't bad, but I want it cooked the same all the way round.
It steams evenly with a lid on the pot. All parts of the ear are evenly cooked.
But it still was a worthwhile experiment. Since we now only cook 2-3 ears at a time, it made us realize we only need enough water to cover the ears. Just out of habit, we had filled the pot pretty full. But the cobs pretty much lay flat in the bottom if that is all the water you use.
Similar to my experience microwaving corn - it works, sometimes perfectly, but too often it is uneven. No way for that to happen when
submerged in 212F water!
-ERD50