This article examines ethnic boundary formation by analyzing how former participants in a liminal organization mobilize organizational schemas of identity and practice. I envisage Jewish summer camps as liminal organizations that provide an undifferentiated setup for immersive ethnic engagement within a clearly defined temporal period. I posit that the liminality of camp helps participants overlook the complexities of identity by transmitting organizational schemas without the constraint of structural pressures. I argue the concept of liminality makes visible structural pressures that stimulate deliberate cognition over organizational schemas.