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Old 05-28-2011, 03:19 PM   #1
bob3000
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Default Batch sparge question

I have heard that when sparging you should stop once the runnings fall to 1.010. Does this apply when batch sparging. I have just brewed a batch where the sparge was 17l I decided to split it into 2 and I did a 9l then 8l sparge. i checked the gravity of both sparges the first was about 1..030 the second 1.010. the second sparge tasted bad, quite harsh and i thought maybe i had extracted tannins. so i ditched it and made up the rest with water and still almost hit my OG. Not sure if this makes a difference or not but I use a nylon mesh bag instead of a manifold.

Should i have chucked the second lot of sparged wort. Is 1.010 too low?

Also I didn't quite get the temp up to 168 for my sparge instead it was around 164/165 could this have effected anything?

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Old 05-28-2011, 03:26 PM   #2
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There are other factors in tannin extraction (especially pH), but as you still hit your OG using higher quality wort, I definitely think you made the right decision.

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Old 05-28-2011, 03:30 PM   #3
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Wow that was quick. Thanks

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Old 05-28-2011, 03:46 PM   #4
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If your taking gravity readings of your batches make sure you correct for temperature. At 160F a 1.010 reading is actually 1.032.

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Old 05-28-2011, 10:02 PM   #5
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I had cooled it to around 85F. Also, it wasn't sweet when i tasted it.

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