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Old 01-22-2013, 09:44 AM   #1
Dec 2012
Posts: 44

Hi Guys,

I'm preparing to make my first weizen and I've seen a lot of discussion about stuck sparges with this style. Is there any risk of this happening when using BIAB? Should I be seeking out rice hulls or similar?

Thanks in advance,


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Old 01-22-2013, 09:46 AM   #2
Jul 2012
Malmoe, Sweden
Posts: 76

Stuck sparges is not an issue when doing biab.

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Old 01-22-2013, 12:30 PM   #3
WoodlandBrew's Avatar
Oct 2012
Malden, MA
Posts: 2,191
Liked 247 Times on 201 Posts

Agreed, not an issue, but it will probably run a little slower. You might have to be a little more careful when you raise it out of the pot to drain. Wheat, oats, and other gummy grains restrict the flow a little, but it keeps going. Expect about twice the usual lattering time.
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Old 01-22-2013, 03:49 PM   #4
Dec 2012
Posts: 44

Thanks guys, thats reassuring to know!

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Old 01-22-2013, 03:55 PM   #5
TopherM's Avatar
Mar 2011
St. Petersburg, FL
Posts: 3,976
Liked 450 Times on 355 Posts

There is no sparging or lautering in a typical BIAB process.

A stuck sparge in a traditional brewing process is when the solids (grain/hops, etc.) clog the valve so you can't separate the wort from the grain.

In BIAB, the bag separates the majority of the wort from the grain from the start, and you squeeze the rest of the absorbed wort out of the grain. Unless you are doing something wrong, the grain would never have the oppertunity to clog up the kettle's output valve, so you can't get that flow "stuck."

I do a ton of BIAB weizens (Hefe's)...let me know if you have any specific questions on your recipe or process!
Primary #1 - Midnight Ryeder (Midnight Wheat and Rye)
Primary #2 - Florida Weiss
Primary #3 - Kane-DOH APA (Honey Citra APA)
Secondary #1 - Downtown Flanders Brown (brewed August 2012)
Keg #1 - Raspberry Florida Weiss
Keg #2 - Cinnamon Raisin Cider
Keg #3 - NONE!
Bottled - NONE!

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