re: Brew in a bag question (extract recipe conversion)

There are many factors that go into the conversion. Some people get ridiculously high efficiency with BIAB and some are all over the chart. Best way to figure it out is experiment and tune in your system as you learn. The DME/0.6 is a good starting point. Brew a batch and take a SG reading after your mash, before boiling. Record that for future batches and adjust this batch with some water or DME, depending on whether your SG is higher or lower than expected.