Ravenshead
Well-Known Member
For background, I have about 15 AG brews under my belt. I fly sparged all of them and had a pretty consistent efficiency of 62-65%. This weekend I tried batch sparging just to see what happened.
Here was my process:
1. Mashed with 15.5 qts (1.25 qts/lb) at 155 F for 60 min.
2. Added 1.6 gallons at 170 F and let sit for 10 min to settle the grain bed.
3. Vourlauffed (sp?) until clear (about 2 qts).
4. Opened the lauter tun valve to full open and let 'er rip into the BK. Took about 10 minutes.
5. Meanwhile, heated 3 gallons to 170 F for batch 2.
6. Added said 3 gallons to the MLT and stirred thoroughly. Let sit for 10 minutes to settle the grain bed.
7. Vourlauffed (sp?) again until clear (about 2 qts).
8. Opened the lauter tun valve to full open and let 'er rip into the BK. Took about 10 minutes.
At the end of the I expected an OG of about 1055 at 62% efficiency and 5 gallons. I got 4.5 gallons at 1045 for an effiency of around 50%.
Did my process cause my low efficiency? I use a 48 qt cooler with a copper manifold for my MLT.
Here was my process:
1. Mashed with 15.5 qts (1.25 qts/lb) at 155 F for 60 min.
2. Added 1.6 gallons at 170 F and let sit for 10 min to settle the grain bed.
3. Vourlauffed (sp?) until clear (about 2 qts).
4. Opened the lauter tun valve to full open and let 'er rip into the BK. Took about 10 minutes.
5. Meanwhile, heated 3 gallons to 170 F for batch 2.
6. Added said 3 gallons to the MLT and stirred thoroughly. Let sit for 10 minutes to settle the grain bed.
7. Vourlauffed (sp?) again until clear (about 2 qts).
8. Opened the lauter tun valve to full open and let 'er rip into the BK. Took about 10 minutes.
At the end of the I expected an OG of about 1055 at 62% efficiency and 5 gallons. I got 4.5 gallons at 1045 for an effiency of around 50%.
Did my process cause my low efficiency? I use a 48 qt cooler with a copper manifold for my MLT.