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terryzar@twc.com
Joined: 19 Mar 2019 Posts: 2 Location: Syracuse, NY
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Link Posted: Wed Mar 20, 2019 12:24 am Post subject: HERMS vs direct heating in MLT |
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I am planning to upgrade to a 3 vessel system and initially decided to go with a HERMS coil in the HLT. But since I am going electric, wouldn’t adding a heater to the MLT accomplish the same thing? Anyone tried this approach vs a HERMS? What is the downside of this approach? I know step mashing would be more difficult due to the time to heat all the wort volume (vs RIMS) on step changes, but isn’t it just as slow with HERMS as you have all the water volume in the HLT to heat?
_________________ The 4 basic food groups: Barley, water, hops and yeast!
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11122 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 20, 2019 1:03 am Post subject: |
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Welcome to the forum!
You cannot put heating elements in contact with grain as it will scorch. If you can somehow separate them and ensure adequate flow then that will work. However, since you’ll need water to sparge (assuming a fly sparged setup like the one outlined in this website), you might as well just heat in the HLT. Best of both worlds.
Cheers!
Kal
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terryzar@twc.com
Joined: 19 Mar 2019 Posts: 2 Location: Syracuse, NY
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Link Posted: Wed Mar 20, 2019 10:46 am Post subject: |
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Thank you for the feedback. Definitely would use a false bottom and apply heat below that and fly sparse. I see advantages in less to clean ( no germs coil). What would I not be able to do by applying direct heat?
_________________ The 4 basic food groups: Barley, water, hops and yeast!
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
Drinking: Chocolate Taco, Raspberry Mango Cider, American X, Sandy Dunes
Working on: Nothing
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Link Posted: Wed Mar 20, 2019 11:46 am Post subject: |
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I wouldn't recommend putting an element in the Mash Tun. That would mean you would have to purchase 3 elements and wire the box that way. I would also think you would have to give a really good cleaning every time.
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Hangovers hurt....but good memories last forever!
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11122 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 20, 2019 12:48 pm Post subject: |
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terryzar@twc.com wrote: | Thank you for the feedback. Definitely would use a false bottom and apply heat below that and fly sparse. I see advantages in less to clean ( no germs coil). What would I not be able to do by applying direct heat? |
As dp Brewing Company mentioned, I see no advantages to have 3 heating elements as per what you propose. It's a more complex setup, costs more, requires extra power, and actually requires MORE cleaning and work on brew day, not less.
If you follow my BREW DAY STEP BY STEP guide ( http://theelectricbrewery.com/brew-day-step-by-step ) you'll note that the HERMS coil doesn't need to be cleaned at all as I recommend fly sparging through it on the way to the MLT. Not only does this simplify cleaning it also ensures that you get that 1/2 gallon of very sweet wort out of the HERMS coil so your brewhouse efficiency goes up.
If you follow my design and use my BREW DAY STEP BY STEP process, nothing in the HLT needs cleaning as it only contained water and the HERMS coil was completely rinsed with hot sparge water. Keeping the MLT very simple (only a false bottom and hose) means that it's very easy to use and clean. The more 'stuff' you put in kettles that need cleaning (boil kettle and MLT) the wore work it is.
To understand how the boil kettle, MLT, and HLT are built per my design see my index of build articles here:
https://shop.theelectricbrewery.com/pages/building-your-brewery
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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