I am looking at purchasing a 30l beer me boiler for BIAB. As this has no temp control i am using my inkbird 308. I know i could get a digiboil 35 for the same job but as i am looking at between 15 and l8l using my fermenter king junior i feel this is a waste. My question is profile set up. I will determine the boil of rate by boiling water for 60 mins. As there is a space under the tap is this mash tun deadspace. Or should i use this as trub chiller loss as i no chill.