Here's an idea I've been pondering for a couple of days.
I usually err on the side of caution and mash my batches with slightly more grain than necessary. So after collecting the wort for the current batch, I still have a gallon or so of 1.020 SG wort left over. Problem is, this is too weak for a starter wort where I'm shooting for 1.040. My idea then is to add more grain to bring the leftover 1.020 back up to 1.040. Question is, how much grain? I can't find a tool that calculates gravity starting from a weak wort.
Even better, could I skip adding additional grain and use 100% cheap adjunct like corn or rice? I wonder if the leftover sparged two-row grain plus 1.020 wort would have enough power left to convert the adjunct, or did the enzymes go into the boil pot already?
I usually err on the side of caution and mash my batches with slightly more grain than necessary. So after collecting the wort for the current batch, I still have a gallon or so of 1.020 SG wort left over. Problem is, this is too weak for a starter wort where I'm shooting for 1.040. My idea then is to add more grain to bring the leftover 1.020 back up to 1.040. Question is, how much grain? I can't find a tool that calculates gravity starting from a weak wort.
Even better, could I skip adding additional grain and use 100% cheap adjunct like corn or rice? I wonder if the leftover sparged two-row grain plus 1.020 wort would have enough power left to convert the adjunct, or did the enzymes go into the boil pot already?