Depending on what you're cutting it with, what grasses/weeds it's composed of, how thick it is, how deep/thick the piles of cut hay are, & how green/wet the hay was when cut, will all factor into it. You also have to couple that with the weather during this time frame... rain? humidity? dampness of the ground... I believe in a distant previous post, Jan mentioned that for sugar content, it's better to cut late in the day after the grass has had all day in the sun to make sugars.
I believe tedding it doesn't simply "flip it over" but spreads it out some at the same time to let air through. I was reading that this also "breaks the stalks/stems" of the thicker part of the grass so it can dry faster as the leaves dry the fastest. Down here I watched several large hay fields get cut early in the day, tedded late that afternoon and baled/moved the next day, but it was HOT out, direct sun, low wind, thin stemmed grasses, and wasn't real high/dense/thick/wet to begin with. There's lots of stuff/info available on the web.
http://www.haytalk.com/forums/topic/49489-tedding-right-after-cutting/
I believe tedding it doesn't simply "flip it over" but spreads it out some at the same time to let air through. I was reading that this also "breaks the stalks/stems" of the thicker part of the grass so it can dry faster as the leaves dry the fastest. Down here I watched several large hay fields get cut early in the day, tedded late that afternoon and baled/moved the next day, but it was HOT out, direct sun, low wind, thin stemmed grasses, and wasn't real high/dense/thick/wet to begin with. There's lots of stuff/info available on the web.
http://www.haytalk.com/forums/topic/49489-tedding-right-after-cutting/