A very cheap (economical) domed lid.

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Re: A very cheap (economical) domed lid.

Unread postby Dicko » Mon Apr 21, 2014 8:27 pm

Batz wrote:Looks good Dicko, I wonder if I could find one to fit the 50lt? I know they make big mixing bowls.

Batz


Hi Batz

Here is a link that I had found from the "copper hood" topic which may have the size you are looking for.

http://www.chef.com.au/prod/115/208/1/t ... ing-bowls/
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Re: A very cheap (economical) domed lid.

Unread postby Cervantes » Tue Apr 22, 2014 4:31 am

Dicko,

Have you done any tests to see if the lid effects your boil off rates?
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Re: A very cheap (economical) domed lid.

Unread postby Dicko » Tue Apr 22, 2014 4:48 am

Cervantes wrote:Dicko,

Have you done any tests to see if the lid effects your boil off rates?


I have only done 2 brews with the lid on and there is very little difference in my boil off figures at this stage.
I will report as time goes on but with my current results I feel there won't be much difference.
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Re: A very cheap (economical) domed lid.

Unread postby Cervantes » Tue Apr 22, 2014 7:23 am

Thanks Dicko,

Is there any evidence of significant amounts of condensation running back into the BM?
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Re: A very cheap (economical) domed lid.

Unread postby whitegoose » Tue Apr 22, 2014 8:03 am

Cervantes wrote:Thanks Dicko,

Is there any evidence of significant amounts of condensation running back into the BM?

I would have though the answer would be yes - but wouldn't that be the same as any domed lid including the official Speidel dome, and the domes on old belgian breweries etc? Surely any DMS precursors (which I assume is what you're getting at) that drip back into the kettle would eventually get boiled off anyway and eventually escape the kettle?
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Re: A very cheap (economical) domed lid.

Unread postby Cervantes » Tue Apr 22, 2014 8:38 am

whitegoose wrote:
Surely any DMS precursors (which I assume is what you're getting at) that drip back into the kettle would eventually get boiled off anyway and eventually escape the kettle?



You'd also hope that with the more vigorous boil more DMS precursors would driven off anyway.

I'm currently boiling for 90 minutes, but thinking that if the boil is better with the modified dome, then I may be able to get away with 60 minute boils and knock half an hour off of a brew day.
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Re: A very cheap (economical) domed lid.

Unread postby whitegoose » Tue Apr 22, 2014 9:00 am

Cervantes wrote:I'm currently boiling for 90 minutes, but thinking that if the boil is better with the modified dome, then I may be able to get away with 60 minute boils and knock half an hour off of a brew day.

+1
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Re: A very cheap (economical) domed lid.

Unread postby cpa4ny » Tue Apr 22, 2014 9:45 am

For boils that involve wort made from a large percentage of pilsen malt - 90-minute boils are pretty much a must.

Need to drive off the SMM which is a precursor to DMS.

For regular 2-row malt - 60 minute boils should be fine.
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Re: A very cheap (economical) domed lid.

Unread postby Cervantes » Tue Apr 22, 2014 11:03 am

cpa4ny wrote:
For regular 2-row malt - 60 minute boils should be fine.



I've yet to progress to lagers, so this works for me :)
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Re: A very cheap (economical) domed lid.

Unread postby Dicko » Tue Apr 22, 2014 6:49 pm

I currently have my boil time set for 80 minutes.
My boil off figures as I said earlier are virtually the same as for no dome so at this stage I am assuming that the more vigorous boil is compensating the partially closed kettle.

When the boil first starts there appears to be slight run back into the kettle but as the boil time progresses and everything gets hotter then this run back decreases.

I have only done 2 brews with the dome at this stage, the second brew was with Weyermann Bo Pils and is a Continental Pilsener style.
I figure that this beer should show if DMS is present or not after the 80 minute boil. It is fermenting with a dry 34/70 lager yeast at the moment so it will be a few weeks before the much awaited and anticipated sampling will occur. :D

I might add that one of my aims with the dome is to possibly be able to cut the boil time back to 60 minutes if at least for most brews.
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Re: A very cheap (economical) domed lid.

Unread postby cpa4ny » Wed Apr 23, 2014 1:27 am

Cervantes wrote:
I've yet to progress to lagers, so this works for me :)



High percentage of Pilsen malt is not only used in lagers - for instance, Westmalle's grain bill is just pilsen malt + sugar :cheers:
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Re: A very cheap (economical) domed lid.

Unread postby Philthebrewer » Mon May 12, 2014 12:02 pm

Just finished modifying my 36cm diameter Ikea bowl for this purpose. The good news is that Ikea sells this bowl globally so there should be no problem getting it. It seems to sit just inside the outer lip of the BM so should allow condensation to run back in.

2014-05-12 10.20.21.jpg

Thanks for all the hints Dicko, especially the 15cm cutout, as I would not want to re-do that cut too many times. With a nice polish up I don't need any rubber on the cut. With some nicely bent (with great difficulty) kitchen cupboard handles set high on the bowl near the rim (thanks again Dicko) I also have a nice malt funnel, see next picture.

2014-05-12 10.20.46.jpg
.

Now I just have to see whether Ikea can supply me with something to turn into a hop basket...
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Re: A very cheap (economical) domed lid.

Unread postby fy0d0r » Mon May 12, 2014 12:53 pm

Cool !

I wish they start selling something big enough for 50L... :roll:
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Re: A very cheap (economical) domed lid.

Unread postby rocketman » Mon May 12, 2014 1:14 pm

Phil, is that a "BLANDA BLANK" Serving bowl?
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Re: A very cheap (economical) domed lid.

Unread postby leosardinha » Mon May 12, 2014 3:13 pm

Philthebrewer wrote:Just finished modifying my 36cm diameter Ikea bowl for this purpose. The good news is that Ikea sells this bowl globally so there should be no problem getting it. It seems to sit just inside the outer lip of the BM so should allow condensation to run back in.


wouldn´t the condensation running back in be a problem?
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