Water can evaporate into the air as long as the air is not saturated. The issue is, therefore, how much water the air can hold, and that applies to anything absorbing anything else.

Air-drying is not likely to work very well in Seattle, where the normal moisture levels are high, regardless of how the items are oriented. Upside-down certainly has the advantage of protecting against dust and other small objects falling in and rendering it necessary to wash the items again, as well as typically ensuring that the remaining moisture is towards the opening of the item, making it easier to use a towel to remove any remaining moisture. Best practice is, in fact, to use a rack or folded absorbent material under the drying glassware, which also serves as a way to ensure it is easy to tell which items have been washed yet and which are awaiting washing.

Hand-drying methods or an automated drier are recommended in Seattle, however, regardless.

Love,
Meteorology + Chemistry

I work in mysterious ways.

Love,
God

Dr. Scott!

Science!

God!

Rocky!

(glares)

I use a dishtowel.

Sincerely,
a human

FTW,
Moisture.

You scratch us, burn us, make it so that our transport system burn themselves on us, and send a blast of steam to their visual connections while attempting to do their fixed prerogative, more so if they have focusing lenses. Please have pity for us, as this usually ends up with us heading to an unintended destination, such as the floor.

Love,

The Sugar Jar-Teacup-Plate Alliance.