I've only done 1 beer soap, and then only used "near beer", so probably not the best advice giver. But it behaved like a lamb, so here's what I did, using the "split method" described by snappy above:
Reduced the beer from a bottle to about 5 oz (to eliminate any remaining alcohol and carbonation) and put it in the fridge to cool. My recipe called for 8.58 oz of liquid (I use aloe instead of water), in a batch that was 26 oz of oils. I used a 33% water/oil ratio, so slightly discounted water/liquid.
I put the lye into 4.58 oz of aloe, added the FO to the oils, let it sit for a few minutes, added the lye liquid to the oils, brought to emulsification and added the below (which was pre-mixed).
Mixed an oz of coconut milk powder, some EDTA, 1.5 TB of oats (mix of finely ground and colloidal) and 1.5 TB of honey warmed in a tiny bit of water in the remaining liquid amount, using the 4 oz of reduced beer. Added that mix at emulsification, brought to trace and then put it in the freezer, did not try to swirl or gel. I had no acceleration, I think I could have done a swirl, espec. if I had used full water.