Sidman
Well-Known Member
I have been doing some pretty big 10 gallon batches lately and notice that when pumping and recirculating I was getting "stuck" like sparges. I use Blichmann G2 15 Gal mash tun and realized I was at the top of capacity for considering my grain bill and grist to liquor ratio. I picked up on here that the sight gauge can be used to monitor a stuck sparge. Checked the instructions and sure enough if your gauge falls below half your volume your headed for a stuck sparge. So I started playing with recirculating volumes if you will. I noticed that you can really dial in the volume level.
So I was curious as to what level GPM is best to recirculate without compacting the grain bed too much but still give me a good recirculating rate. I noticed the G2 instructions mentioned something like 1 GPM for rims. I don't have a rims (yet) and currently direct fire under mash to keep temps constant so I need a good flow when firing.
And the second question is can I get a good guestimate on flow rate using the sight glass? IE if my starting volume shows 10G and I recirculate at a steady reading of 9 G am I at a 1 GPM flow? Seems like that would be too simplistic and doesn't take into account the time factor. Anyone have any ideas?
So I was curious as to what level GPM is best to recirculate without compacting the grain bed too much but still give me a good recirculating rate. I noticed the G2 instructions mentioned something like 1 GPM for rims. I don't have a rims (yet) and currently direct fire under mash to keep temps constant so I need a good flow when firing.
And the second question is can I get a good guestimate on flow rate using the sight glass? IE if my starting volume shows 10G and I recirculate at a steady reading of 9 G am I at a 1 GPM flow? Seems like that would be too simplistic and doesn't take into account the time factor. Anyone have any ideas?