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Brews & Views Bulletin Board Service * Brews and Views Archive 2003 * August 29, 2003 * Anyone use a grain bag in mashtun? < Previous Next >

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Kentucky Dan (68.210.147.199)
Posted on Friday, August 08, 2003 - 02:23 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Does anyone else use one of the large mesh grainbags over the top of the manifolds in a cooler mashtun? Sort of like a strainer before the manifold?

It has been a constant by most of the members in our club for years and recently, I'm starting to question the wisdom of the practice, and wonder if anyone else uses the grainbags.

It does seem to reduce the introduction of stray kernals into the wort.

Thanks,
kentucky dan
 

Jon Reid (204.210.63.5)
Posted on Friday, August 08, 2003 - 02:39 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

"It does seem to reduce the introduction of stray kernals into the wort. "

So does a good vorlauf.
 

Brandon Dachel (63.238.222.190)
Posted on Friday, August 08, 2003 - 11:11 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

> I'm starting to question the wisdom of the
> practice,

I don't think that there is anything unwise about it, but most would probably say that it's unnecessary.
 

Paul Hayslett (64.252.33.200)
Posted on Friday, August 08, 2003 - 12:10 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Just wondering -- how do you stir the mash with the bag in there? When I get to the end of a session, my "manifold" (loop of SS braid) is all banged up. I'm sure I'd have gotten all tangled in a mesh bag. Does this mean I'm stirring too aggressively? Should I back off?
 

Kentucky Dan (162.114.211.143)
Posted on Friday, August 08, 2003 - 02:09 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

The bags used are usually bigger than most of our manifolds, so the bags are usually tucked under. After that, most people seem to take a few cares but nothing inordinate.

The part of the wisdom that I am starting to question is the efficiency aspect. A friend at a recent brewin forgot to bring his grainbag and mashed without. He also forgot to bring something to control the flow rate from his discharge tube. (His 1st all grain).

His sparge was fast and furious ultimately slowing to a trickle. He continued to play with it until he arrived at his 5 gallon level.

He was making an APA while we were making a IPA. The grain was all ground in my mill. His OG was the same as our OG!! And his efficiency much higher! The mashtun is similar to mine.

I'm wondering if the grainbag hampers the internal drawing of sugars and that the trickle was caused not from the lack of the grainbag, but because of the unrestricted hose! If so, maybe I should eliminate the grainbag (never noticed anyone else online mentioning the bags) and possibly increase my efficiency.

Thanks for the input.
Kentucky dan
 

Denny Conn (63.114.138.2)
Posted on Friday, August 08, 2003 - 04:45 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

KD, you'll just have to try it to see if it increases your efficiency, but it certainly seems unnecessary to use the bag.
 

Jake Isaacs (128.163.110.72)
Posted on Friday, August 08, 2003 - 04:50 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I used a grain bag over my manifold a few times. Didn't notice much difference except for the PITA of getting the bag hung up in my mash paddle. It tends to trap air a bit when you add strike water to a cooler, untucking the edges from under the manifold.

I don't see any advantages really (unless your manifold sucks), but I also don't see anything necessarily wrong with it if you're batch sparging. I could see some flow problems if you sparge continuously, though.
 

FrugalBrewer (209.98.83.170)
Posted on Friday, August 08, 2003 - 05:43 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I used to use the grain bag AS A MANIFOLD!!!. Take a grain bag and place it into a bottling bucket, secure with bungee cord so bottom of grain bag is above the drain on the bottling bucket.

Then sparge through the bag collecting the runoff through the spigot.

VERY CHEAP all grain setup, works fine.

We mashed in a cooler and transfered the grain to the grain bag in the bottling bucket, the transfer was kind of a PIA.

I have since switched to a manifold in a rectangular cooler and do not use the grain bag.
 

Kentucky Dan (68.210.130.90)
Posted on Friday, August 08, 2003 - 05:49 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

What kind of efficencies do you get FB?
 

Kentucky Dan (68.210.130.90)
Posted on Friday, August 08, 2003 - 05:49 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

What kind of efficencies do you get FB?
 

Ronald Ray Clark (68.106.80.93)
Posted on Saturday, August 09, 2003 - 01:16 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I use a big bag at the bottom and it streches out to the edges of the tun. It keeps grain from getting in the pump
 

FrugalBrewer (24.245.46.227)
Posted on Monday, August 11, 2003 - 04:25 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I'm not sure Kentucky Dan. I have kind of slacked off on the scientific side of this hobby, I don't even measure gravities sometimes. I also have a connection for some free barley so efficiency isn't all that important to me.

My new system is a nylon braided tube manifold in a rectangular cooler. I simply drilled tons of holes in the nylon braided tube.

I also batch sparge now, when I used the grain bags I trickle sparged.
 

Kentucky Dan (68.210.128.71)
Posted on Thursday, August 14, 2003 - 01:25 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Thanks for the feedback. I'll definitely have to try a mash w/o the grainbag. From the little that I saw, the bag may hamper the draw on the grain resulting in lower efficiency.

Cheers,
kentucky dan

Anyone going to B&S?

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