  It is shown that a condensation transition involving a chiral order parameter
can occur in itinerant helimagnets, in analogy to the transition between the
isotropic phase and the phase known as blue fog or blue phase III in
cholesteric liquid crystals. It is proposed that such a transition is the
explanation for recent neutron scattering results in MnSi. Predictions are made
that will allow to experimentally test this proposal.
