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Old 04-15-2011, 05:14 AM   #1
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Default biab temperature monitoring question

I'm finally getting around to brewing and plan on starting w/biab and I'm wondering how to monitor temperature. I saw the stickied thread w/the long stemmed thermometer in the top however I plan on starting with 5 gallon batches in the penrose kettle and I'm wondering if a long stemmed thermometer will have enough reach or if I should have an outlet drilled in the kettle for one. If so, how high up should it be?

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Old 04-15-2011, 05:35 AM   #2
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WTF IS A biab???? .... brew in a bag? this is prob why you havnt had any responses. wtf is biab?

( sorry in a less drunk way. what is biab. if you provide more information we would love to help )

but i like this ire psiresponse ; D

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Old 04-15-2011, 06:12 AM   #3
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Yea, I meant brew in a bag, was too lazy to capitalize it

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Old 04-15-2011, 06:15 AM   #4
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Problem with having a thermo installed in the keg mixed with BIAB is that you will potentially rip the bag on the probe end. Try using one of the digital probe thermos with the cable attached, like for a BBQ or oven. Or a fast read long stem digital which you could put into the mash and remove for fast reads.

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Old 04-15-2011, 06:16 AM   #5
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Yea i htknk th emorst last mpost ins right. a digital prob would work best for you. i should stop drinkging.

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Oh the things I would do to that pint.
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Old 04-15-2011, 10:49 AM   #6
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I used my keggle with the thermometer in the side and it worked fine but you do have to be careful but if you have a digital thermometer it would work better.

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Old 04-15-2011, 11:50 AM   #7
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What temperature are you checking? When I biab, I use a junky glass thermometer and when at temps, put the lid on, wrap it up in an old blanket and walk away for an hour. I usually only lose 1 - 2°.
I've not biab in the winter, the coldest it's been was probably around 45°F outside, so that might factor in.

I'm not familiar with the penrose kettle or your method of heating, but with a 30 qt propane turkey fryer, this works well enough.

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Old 04-15-2011, 12:56 PM   #8
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I have done 5 gal. BIAB batches in a 62 qt. Bayou Class pot and I just use a digital hand held with about a 5-6" probe. I check at the beginning and then about half way through mash.

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Old 04-15-2011, 01:36 PM   #9
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Get the probe down into the middle of the grain bag. I ususlly use two thermometers, one in the middle of the grain, and one in the liquid surrounding the bag. The liquid temperature can vary from the grain temp wildly. I have the bag down in the liquid, with the top open and clipped to the edges of the pot. That way I can stir and leave the digital temp probe in the grain. Make sure you get it down in the middle, but don't brick your digital probe if it isn't sealed.

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Old 04-15-2011, 01:53 PM   #10
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I use a digital thermometer with the cabled probe like for a BBQ. it even has a remote unit so I can go back inside if it's freezing outside (or soon to be a freaking oven in the south). works great. even in sub freezing temps (24F was coldest O brewed in) with the kettle wrapped in a sleeping bag I only lost 4 degrees over 90 minutes.

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