Magnetic Stir Plate
- orlando
- So far gone I'm on the way back again!
- Posts: 7197
- Joined: Thu Nov 17, 2011 3:22 pm
- Location: North Norfolk: Nearest breweries All Day Brewery, Salle. Panther, Reepham. Yetman's, Holt
Re: Magnetic Stir Plate
It's to warm, end of.
I am "The Little Red Brooster"
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
Re: Magnetic Stir Plate
I'll stick to the evidence in the yeast book from two respected authors. Stir plates grow more yeast than any other method which would indicate they are better at aerating. Off flavours are irrelevant though are you are growing not fermenting so the yeast will most likely produce different smells and flavours especially given the ideal temps are 25°c.Sadfield wrote: ↑Sat Aug 19, 2017 11:45 pmI think the point about stirring vs shaking was in regards to oxygenation, with shaking being better as stir plates were not designed to aerate, but to keep a substance in suspension. The lack of aeration can cause starters to have off flavours. I think the shear stress thing was added on to the argument to add weight to the shaken not stirred idea. £100 stir plate and £25 flask vs a 5L spring water bottle, I know which method I prefer.
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- orlando
- So far gone I'm on the way back again!
- Posts: 7197
- Joined: Thu Nov 17, 2011 3:22 pm
- Location: North Norfolk: Nearest breweries All Day Brewery, Salle. Panther, Reepham. Yetman's, Holt
Re: Magnetic Stir Plate
That is so unlike me, my keyboard keys must be sticking. Hot water bottle still not needed, yet!
I am "The Little Red Brooster"
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
Re: Magnetic Stir Plate
OK.AnthonyUK wrote:I'll stick to the evidence in the yeast book from two respected authors. Stir plates grow more yeast than any other method which would indicate they are better at aerating. Off flavours are irrelevant though are you are growing not fermenting so the yeast will most likely produce different smells and flavours especially given the ideal temps are 25°c.Sadfield wrote: ↑Sat Aug 19, 2017 11:45 pmI think the point about stirring vs shaking was in regards to oxygenation, with shaking being better as stir plates were not designed to aerate, but to keep a substance in suspension. The lack of aeration can cause starters to have off flavours. I think the shear stress thing was added on to the argument to add weight to the shaken not stirred idea. £100 stir plate and £25 flask vs a 5L spring water bottle, I know which method I prefer.
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Sent from my E5823 using Tapatalk
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- Under the Table
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- Joined: Tue Mar 25, 2008 11:52 pm
- Location: Wombwell (South Yorkshire)
Re: Magnetic Stir Plate
Wonder if these are any good? CLICKY
"Brewing Fine Ales in Barnsley Since 1984"
- - - - - - - 30 years (1984 - 2014)- - - - - - -
Pints Brewed in 2021......... 104
Pints brewed in 2018.. 416
Pints brewed in 2017.. 416 - Pints brewed in 2016.. 208
Pints brewed in 2015.. 624 - Pints brewed in 2014.. 832
- - - - - - - 30 years (1984 - 2014)- - - - - - -
Pints Brewed in 2021......... 104
Pints brewed in 2018.. 416
Pints brewed in 2017.. 416 - Pints brewed in 2016.. 208
Pints brewed in 2015.. 624 - Pints brewed in 2014.. 832
- orlando
- So far gone I'm on the way back again!
- Posts: 7197
- Joined: Thu Nov 17, 2011 3:22 pm
- Location: North Norfolk: Nearest breweries All Day Brewery, Salle. Panther, Reepham. Yetman's, Holt
Re: Magnetic Stir Plate
Buy one and let us know.
I am "The Little Red Brooster"
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
- Jocky
- Even further under the Table
- Posts: 2738
- Joined: Sat Nov 12, 2011 6:50 pm
- Location: Epsom, Surrey, UK
Re: Magnetic Stir Plate
I have a friend who has one of those. It works fine, albeit a bit noisy compared to more expensive models.
Ingredients: Water, Barley, Hops, Yeast, Seaweed, Blood, Sweat, The swim bladder of a sturgeon, My enemies tears, Scenes of mild peril, An otter's handbag and Riboflavin.
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- Under the Table
- Posts: 1793
- Joined: Tue Mar 25, 2008 11:52 pm
- Location: Wombwell (South Yorkshire)
Re: Magnetic Stir Plate
Noooooooorlando wrote:Buy one and let us know.
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"Brewing Fine Ales in Barnsley Since 1984"
- - - - - - - 30 years (1984 - 2014)- - - - - - -
Pints Brewed in 2021......... 104
Pints brewed in 2018.. 416
Pints brewed in 2017.. 416 - Pints brewed in 2016.. 208
Pints brewed in 2015.. 624 - Pints brewed in 2014.. 832
- - - - - - - 30 years (1984 - 2014)- - - - - - -
Pints Brewed in 2021......... 104
Pints brewed in 2018.. 416
Pints brewed in 2017.. 416 - Pints brewed in 2016.. 208
Pints brewed in 2015.. 624 - Pints brewed in 2014.. 832
- orlando
- So far gone I'm on the way back again!
- Posts: 7197
- Joined: Thu Nov 17, 2011 3:22 pm
- Location: North Norfolk: Nearest breweries All Day Brewery, Salle. Panther, Reepham. Yetman's, Holt
Re: Magnetic Stir Plate
spoilsport.
I am "The Little Red Brooster"
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
-
- Under the Table
- Posts: 1793
- Joined: Tue Mar 25, 2008 11:52 pm
- Location: Wombwell (South Yorkshire)
Re: Magnetic Stir Plate
No need for one at the mo, chipping away at 500g of Nottingham.............
"Brewing Fine Ales in Barnsley Since 1984"
- - - - - - - 30 years (1984 - 2014)- - - - - - -
Pints Brewed in 2021......... 104
Pints brewed in 2018.. 416
Pints brewed in 2017.. 416 - Pints brewed in 2016.. 208
Pints brewed in 2015.. 624 - Pints brewed in 2014.. 832
- - - - - - - 30 years (1984 - 2014)- - - - - - -
Pints Brewed in 2021......... 104
Pints brewed in 2018.. 416
Pints brewed in 2017.. 416 - Pints brewed in 2016.. 208
Pints brewed in 2015.. 624 - Pints brewed in 2014.. 832
Re: Magnetic Stir Plate
Haha, that's going to last a while.
Re: Magnetic Stir Plate
I've been cooking up 5l starters for 50l brews using a stir plate and bubbling air in through a .5u filter for quite a while now and the yeast just grows like crazy, lag time after pitching is never more than an hour or two, so I'm pretty sold on the stir plate.
I didn't know that optimum growth temperature was as high as 30c - tend to set mine to about 22-24c, will have to turn up the heat on the next one...
I didn't know that optimum growth temperature was as high as 30c - tend to set mine to about 22-24c, will have to turn up the heat on the next one...