I've been doing partial mashes with a couple of pounds of 2 row, some Vienna or Munich, and a handful of specialty malts (biscuit, aromatic, etc, depending on my mood).
I find myself on a quest to push the quantity of Vienna/Munich as high as it can go. But my current setup can only fit 4 pounds of grain in total, so I have to reduce the amount of base malt to make room.
I know these malts can self convert, but do they have enough diastatic power to also convert specialty malts? For instance I'm toying with something like:
- 2.5 lb Vienna
- 0.75 lb honey malt
- 0.5 lb biscuit
but I fear this may be pushing it too far and I need to fit some 6 row in there as well?
Backing up a step, can anyone recommend a good resource on how to calculate this stuff? I have info about the diastatic power of various malts, but I don't understand the units - it seems like somewhere around 30 is the ability to self convert, and then it goes up from there? Anyone got a formula for working out whether any given combination of base malt + specialty is going to work out?