Thread transport continued.
The way that I determine if rinsing is necessary is this. I drink the "rinse water" after it cools. If it has an offish taste, I rinse the filters. If it tastes like normal water, no rinse needed. As far as the Melittas go, the browns definitely need rinsed, the white (IMO) don't. The rinse water from the browns tastes like a brown paper sack smells. The water from the whites has little or no off taste. For economical and ease of use purposes the Melitta whites are the way to go (IMO).
As far as water temps go. If I preheat my thermal carafe or chemex with the water just off boil and pour it back into the kettle, I am at about 205 degrees and ready to start my bloom pour. How long do you wait before resuming the pour after the "bloom"? I wait about 1 minute. In that one minute with lid down I lose about 5-10 degrees. So, I pour my bloom at 205 degrees and resume the pour with the water at 195-200. I think that my water may be a little cool by the end of the pour, but don't know of any way to avoid it. Maybe shorten my bloom time? Any thoughts?