Current I'm BIABing using the medium body BIAB profile on Beersmith. After the mash I squeeze my bag out into a seperate bucket and then pour that into the kettle before taking a gravity reading.
However I'm left with 4-5L of deadspace in the kettle and so I would like to include a 'sparge' step to increase my batch size. I'm going to take the bag out, let it drain into another bucket, and then pour 4L of water of the bag before I squeeze it. I'll then pour that liquid into the kettle.
How can I set this up in Beersmith so it's taken into account? I considered using the 'Kettle top up' field, however presumerably this just refers to water and so it wouldn't account for the specific gravity of the sparge addition.