I bled all four of my brakes but I realized that the brembo brakes has a bleeder valve on the inside and outside of the calipers. I forgot to bleed the inside of both calipers. I driven the car around for 10 miles already. Has the fluid already mixed with the rest of the fluid or is the old fluid still on the inside pistons?

 

for the most part, still inside the caliper, sure a little bit may have gotten into the end of the lines, but those couple drops wont make any real world difference