Thanks for the quick reply Joshua. That's reassuring to hear. It's just such a simple process, it seemed easier than extract brewing with steeping grains. I'm glad I don't need a big cooler taking up space in my small kitchen.

At this point I'm getting familiar with the whole procedure etc. In looking at other recipes (I already have a few lined up) I very simply change the total grain bill to about 10 lbs while keeping the same grain ratio. That's all there is to "converting" a recipe right? Of course we keep the same ratio of hops as the original recipe as well and take into account maybe slightly poorer hop utilization but then were good right? I have my eye on a simple scotch ale for the next one. It amounts to about 9.5lb of grain. Guess I just wanted a more expierenced biaber to check to see if I missed something.

Thanks again

Hi I am looking to do a maxi-biab. Is there a calculator to use to figure out about how much grain I will need and about how much I will get out of it?
The pot I have has a diameter of 30 cm and a height of 23 cm. It has a volume of ~16 L (4 gallons).

I did a BIAB using it with PistolPatch's help and with my next batch I would like to try doing a maxi-biab

Is there a recent calculator that has maxi-biab calculations? The most recent one that I have doesn't seem to have anything with maxi.

Hi All. This looks like a great technique. I have two follow-up questions (Assuming I have a 19L kettle, and want to hit 21L in the fermenter):

During the boil process, you are continually pouring boiling water over the grains into a bucket, and adding that to the boil to keep it topped off (please correct me if I'm wrong). At the end of the boil, I should end up with something like 18L in the kettle, which I cool and add to the fermenter.

Here's my first question:

To hit my desired volume (21L), can I add 3L of the sparge/grain/dunked water to the fermenter, or should I add clear water, AND should this water be added as-is, or should I boil it first to sanitize then cool to fermentation temp (70F)?

Second Question:

I used the amazing MaxiBIAB Calc for an american ale with a volume of 21L. The grain bill came out to 5.736Kg, however in the forumns I read that the sweetspot for grainbills using a MaxiBIAB recipe is just over 4KG. Can someone explain this? Should I reduce my grain bill, or does it look correct? The recipe's OG is 1.058. Do I need to choose a recipe with a lighter gravity to be able to hit my calculations?

Thanks!