What is the time span for adding in personal bakashos in the middle brachos of shemoneh esrei without it being a hefsek? Thank you!
Answer:
It never becomes an actual hefsek, because this is part of your prayer.
However, authorities write that one should not deviate from the basic text of the Shemoneh Esrei too much, and should keep the extra supplications in the middle berachos short.
If one wishes to add long supplications, this should be reserved for the end, in the Elokai Netzor section.
Best wishes.