It seems the standard way to remove chickens feathers after slaughtering is to scald the chicken in hot water for up to a couple minutes before plucking the feathers. (as an example, here's some instructions in pdf format from the university of Wyoming).
According to Jewish Law (See YD 69:11), this method would not be permitted, since the chicken has not been salted yet. (This process is called "מליגה"). (See also YD 68:11 for further discussion)
What do Kosher meat processors do to remove the chicken feathers in a halachically permissible way? If there is a different method for home practitioners, what would that be?
I came across a paper from Israeli scientists in the 1970s looking for a kosher way to remove the feathers who tested using cold water and found that good plucking (i.e. without the skin tearing) was attained at temperatures below 7 °C. You can read the paper here. But there is no mention of if this method was adopted by kosher slaughterhouses.
{This question was inspired by this one}