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Blonde ale = Kölsch ?

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Would Alpha & Beta amylase convert the starches in potatoes into maltose, etc., to produce a beer-like wort? Maybe use some amyloglucosidase, which might even convert coal into useable ‘toses’. /s
The alpha and beta should work with potatoes if they are fully boiled and smashed into sludge.

Potatoe beer.... what could be more German?
 
One of my local breweries has what they call a Kolsch and it is one of their best sellers. It is a great beer, but not sure it can be classified as a Kolsch, it uses W34/70 fermented warm. He took the opposite approach on marketing and I think it sells just because it is a great beer.
 
Now I feel like I actually have to try it. 😂
I’ll work up a recipe. Hopefully Brewfather has potatoes listed in their fermentatables category. Otherwise might be hard to figure expected SG’s.
Ok, let's do one in parallel. Experimental 'tatoe ale. I'm in! But only with a 4 litre batch.
 
The alpha and beta should work with potatoes if they are fully boiled and smashed into sludge.

Potatoe beer.... what could be more German?
I've done it. It works, but the sparge is impossible, it just clogs up. If I did it again I'd use instant mashed potato powder.
The beer I made was a stout, by the way, and very drinkable.
Not sure about potato kölsch, though. Might need a dash of peppermint to bring out the best in it. 🤣
 
I've done it. It works, but the sparge is impossible, it just clogs up. If I did it again I'd use instant mashed potato powder.
The beer I made was a stout, by the way, and very drinkable.
Not sure about potato kölsch, though. Might need a dash of peppermint to bring out the best in it. 🤣
Did you taste the potatoe in any way in the final product? Hard in a stout, but maybe it came through?
 
Did you taste the potatoe in any way in the final product? Hard in a stout, but maybe it came through?
No. Not at all. I thought it might lighten the beer's body like adding sugar does, but it seemed to enrich it somehow. No discernable flavour, though.
In truth, there was no advantage, it wasn't cheaper, brewday was a nightmare and the beer was ok.
But come the times of Ragnarök, the humble spud will come into its own.
 
No. Not at all. I thought it might lighten the beer's body like adding sugar does, but it seemed to enrich it somehow. No discernable flavour, though.
In truth, there was no advantage, it wasn't cheaper, brewday was a nightmare and the beer was ok.
But come the times of Ragnarök, the humble spud will come into its own.
Sounds like my kind of beer.
 
Ok, let's do one in parallel. Experimental 'tatoe ale. I'm in! But only with a 4 litre batch.
Mash with primarily pale or Pilsner malt, some Munich, a touch of wheat and how much potato? 10%? 20%?
Maybe some lemon zest in the whirlpool or flameout and maybe a bit of lemon juice as a “dry hop”. ?
I’ll have to see about getting something like a 2 gallon FV.
 
Mash with primarily pale or Pilsner malt, some Munich, a touch of wheat and how much potato? 10%? 20%?
Maybe some lemon zest in the whirlpool or flameout and maybe a bit of lemon juice as a “dry hop”. ?
I’ll have to see about getting something like a 2 gallon FV.
Potatoes have a lot of water inside. I think one needs to find the ratio of starch per kg between potatoes and barley and then go from there.
 
Potatoes have a lot of water inside. I think one needs to find the ratio of starch per kg between potatoes and barley and then go from there.
I think I started with 5 kilos. Whether that was calculated or I simply had 5 kilos going to seed, I can't remember. When you put them on to boil remember not to salt the water.
This is worth reading:
https://byo.com/article/brewing-with-potatoes-techniques/
Chris Colby seems to suggest that it's not necessary to boil the spuds as the starch gelatinisation occurs below mash temperature. Later he talks about boiling and whipping them before stirring on the grain. I think thinly-sliced potatoes would give an easier sparge.
 
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I think I started with 5 kilos. Whether that was calculated or I simply had 5 kilos going to seed, I can't remember. When you put them on to boil remember not to salt the water.
This is worth reading:
https://byo.com/article/brewing-with-potatoes-techniques/
Chris Colby seems to suggest that it's not necessary to boil the spuds as the starch gelatinisation occurs below mash temperature. Later he talks about boiling and whipping them before stirring on the grain. I think thinly-sliced potatoes would give an easier sparge.
Sounds like another great opportunity to create more work on brew day.
 
Sounds like another great opportunity to create more work on brew day.
You're so right. By the end of the sparge, I was losing the will to live. I think I was aiming for an OG of about 1065 but ended up with 1050 and even that was murky. I'll have to look up the details, it was a good while ago.
But the beer was surprisingly good. But not good enough to go through all that again.
It's definitely a post-apocalyptic brew.
 
Here are my brewing notes. I see my OG wasn't out, but the volume was short.
And I think I've got a bottle left somewhere.
IMG_20250524_160227.jpg
 
You're so right. By the end of the sparge, I was losing the will to live. I think I was aiming for an OG of about 1065 but ended up with 1050 and even that was murky. I'll have to look up the details, it was a good while ago.
But the beer was surprisingly good. But not good enough to go through all that again.
It's definitely a post-apocalyptic brew.
I appreciate trying new ideas but sometimes it's just best to stick with what works. You'd never know if you didn't try.
 
Isn't that a contradiction, OIB ? Are you encouraging us to to stick with what works or make new discoveries by boldly brewing what no man has brewed before?
🚀
It sort of is a contradiction. I got interrupted while typing and lost my thought.

It should be a personal choice. I know lots of brewers that go to great lengths to save time while others seem to go to great lengths to make their day longer, conciencely or not.

I'm all into innovation but some things after experimenting turns out to be a flop. But we never know until we try or someone else tries.

Sorry if I was confusing.
 
I did have a bottle and it's still good. It got a little bit fizzy, but that's bottled beer for you. Still tastes good, especially now it's flattened a bit.
A little dark for a Blonde or a Kolsch, but heck, it's beer, and drinkable! I'm having a Helles before saddling up the mower.
 

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If you want to do it the easy AND “correct” way, just set it up in “ text replacement” setting under keyboard in general settings. If I type k-o-l-s-c-h, it automatically changes to Kölsch. (No hyphens) Same with c-o-2 to CO₂ . Saves me a lot of effort here. 🍻
I need a tutorial on this and I’m not totally technologically illiterate. It’d be handy for my daughter’s name too. It’s spelled with 2 e’s instead of the common ie. callee
 
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