  Hawking's calculation is unable to predict the final stage of the black hole
evaporation. When effects of quantum gravity are taken into account, there is a
minimal observable length. In this paper, we investigate fermions' tunnelling
from the charged and rotating black strings. With the influence of the
generalized uncertainty principle, the Hawking temperatures are not only
determined by the rings, but also affected by the quantum numbers of the
emitted fermions. Quantum gravity corrections slow down the increases of the
temperatures, which naturally leads to remnants left in the evaporation.
