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suitbrewing
Joined: 05 Mar 2018 Posts: 3 Location: Nicosia, Cyprus
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Link Posted: Mon Mar 05, 2018 9:50 pm Post subject: 5KW Induction hob and 20 Gallon SSB stuck @ 98c/208F |
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Greetings to all. I have been a silent reader to date, but I have a question that I feel will be interesting to this community.
I recently bit the bullet on a 20 gallon SSB kettle and a 5kw induction hob. I spent a large sum on this setup and I am hoping that it will take my brewing forward both in terms of practicality, volume and quality.
I did a test with water before my first batch with the new setup.
I loaded the pot with 65L/17gallon of 25c/77F water and tried to boil it.
The process was reasonably efficient. The 70c (158F) to boil, boil up (which represent the realistic brewing scenario) happened in 40min which is fair for such a large load. If I start to heat while sparging I should be able to heat to boil in no more than 30 min.
The only issue is that when I reached boil and removed the lid, what was a rapid boil turned into a "lazy" boil. I took several temp readings and all them where in the 98c region (208F).
I appreciate that a vigorous boil has a number of benefits, such as clarity, getting rid of DMS etc. Am I missing out on those by being stuck @ 98c/208F during the entire boil process???
Do I have any options??
I should be transparent, that I also posted this question on Homebrewtalk as well. If this is not allowed by the rules of this forum moderators pls delete.
_________________ getting there
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Mon Mar 05, 2018 10:07 pm Post subject: |
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Welcome to the forum!
One thing to keep in mind is that large volumes of boiling water usually don't look to be boiling overly vigorously. It's not until you do the same with wort that you get lots of apparent movement/bubbles/etc. This is a fairly common question people ask when first testing out their systems with water. 5000W (assuming you're actually getting 5Kw) should be enough to boil 17 gallons. You're starting to get close to the point where we recommend 2 x 5500W elements usually to reduce heat times, but it should still work and produce an adequate boil.
As for being stuck at 208F, are you sure? Has the thermometer been calibrated? What altitude are you at? (The higher you are, the lower the boil temp)
Note to others from North America who many not be aware: A "hob" is a cooktop or hotplate.
Cheers!
Kal
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My basement/bar/brewery build 2.0
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suitbrewing
Joined: 05 Mar 2018 Posts: 3 Location: Nicosia, Cyprus
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Wed Mar 07, 2018 1:10 pm Post subject: |
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suitbrewing wrote: | I guess I will need to brew to find out my boil off rates?! |
Correct.
Quote: | Since we are at it, does anyone have any experience of using a stainless steel cooler as a recirculating mash tun with a rims setup?? the mash tun looks like this |
I think the biggest challenge will be how to attach fittings (ball valves/etc) to it as there are two layers of stainless with insulation in between.
If you're using an system that is able to add heat (like HERMS or RIMS) there's no need for the mash tun to be insulated.
Kal
_________________ Our new shop with over 150 new products: shop.TheElectricBrewery.com
We ship worldwide and support our products and customers for life.
Purchasing through our affiliate links helps support our site at no extra cost to you. We thank you!
My basement/bar/brewery build 2.0
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suitbrewing
Joined: 05 Mar 2018 Posts: 3 Location: Nicosia, Cyprus
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Link Posted: Wed Mar 07, 2018 1:34 pm Post subject: |
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Hi Kal
The plan is to use niples the way I did with my plastic cooler. I do appreciate that a pot is more sturdy for fixing weldless fittings but I think I can pull it off!
I have the SS Cooler already so a pot now would be additional cost. I appreciate that I don't need the insulation but I am guessing is not going to cause any harm.
_________________ getting there
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