I have a rectifier bridge with 4x (GP)1N5062 diodes (body made of black plastic tube - like 1N4007). I have seen that they are getting hot, even if the current passing through the rectifier is 0.95 A.
I can only keep my finger on its terminal for 3-4 seconds, so let's say 45 Celsius.
My digital multi-meter measures 23V DC voltage at the output of the bridge. However, if I switch to AC voltage it measures also about 2.1 VAC.