I don't spend a lot of time grooming since I don't mind if they are still a bit dirty. I focus on the saddle/girth area and the bridle area on their face. If they just need a quick brushing, 2 minutes max, if they are muddy or shedding, it will be closer to 5-10. There are many times when I don't groom at all after a ride. In the winter, I'll use a metal curry after they have dried to fluff their hair back up and sometimes in summer, I will give them a rinse if they got especially sweaty, but normally I just turn them back out. They groom themselves by rolling.