Scorching on grandfather

[Alastair70]

Edit- Just saw autocorrect in title, my computers spell checker needs educating!
I've ended up with some stubborn scorching on the bottom of the grainfather after todays brew. It's proven resistant to scrubbing with a brush and GF cleaner. Would you forget about it and carry on, or go at it with something more abrasive?

 

[Cwrw666]

I use one of those stainless steel mesh pan scrubbers on my boiler. Works a treat.

 

[AlDaviz]

It’s happened a couple of times to me I’ll normally add pbw solution and leave overnight to soak, most should come away, it will also scrape away with a knife

 

[AlDaviz]

Also looking at the photo !!
Do you scrape the bottom during the boil ?
As recommended by grainfather you should scrape every 10/15 minutes to prevent buildup. I think if it builds up too much it can trip the boiler !! The button is underneath to reset !! So you would then need to maybe empty to push the reset button !!

 

[The Baron]

what temp did you have the boil on? its usually due to having these type of machines on a high wattage during the boil and mash I use my all in one system at 1900 and no more it does take longer to boil but I don't get the burning at the bottom

 

[Clint]

Move grandfather away from the fire..

 

[Alastair70]

what temp did you have the boil on? its usually due to having these type of machines on a high wattage during the boil and mash I use my all in one system at 1900 and no more it does take longer to boil but I don't get the burning at the bottom

It was set for 100, but the few times I looked was showing 101, (not sure how that works exactly)

Also @AlDaviz, didn't scrape the bottom. Will have to pay more attention to that in the future.

 

[The Baron]

I meant what wattage did you have the machine on was it full power and if so what is the heating element wattage

 

[Linalmeemow]

Stick some vinegar or lemon juice on it, leave overnight and it'll wipe off in the morning.

 

[Alastair70]

I meant what wattage did you have the machine on was it full power and if so what is the heating element wattage

Apologies, I suspect it was going full tilt. I ran the recipe through the Connect app and left it to its own devices. I’d always assumed the device was smarter than me and let it get on with it. It has a 500W element and a 2000W one and should switch between them as required.

 

[The Baron]

Try and dial down the heating element on the next brew and see if it is not as scorched on the bottom plus a stir or 2 will help I would think. Good luck

 

[Justin Dean]

You could also source a false bottom that is used on the new robobrew as it is perfect fit for the grandfather. That will help avoid this. Presently I use my paddle stirrer to move the grain bed round and prevent scorching during the mash and i use the lower wattage during mash and sparge only using high in the initial heat up and boil

 

[Slid]

Also looking at the photo !!
Do you scrape the bottom during the boil ?
As recommended by grainfather you should scrape every 10/15 minutes to prevent buildup. I think if it builds up too much it can trip the boiler !! The button is underneath to reset !! So you would then need to maybe empty to push the reset button !!

Tripping the boiler happens on every brew now. I have some BIAB equipment from the HBC - Peco Boiler, Mashing bag etc. I use the Peco to heat the sparge water and after sparging, just wait until it cuts out during the heating to boil phase. Then use a 2L Wilko jug to chuck the whole lot through the BIAB bag back into the Peco to boil it. Then repeat the bail-out into the cleaned out GF for the chill and transfer. You lose 10c in the transfer, so it adds a bit of time as well as effort to the brew day. Maybe 30-60mins. Get clear beer and no scorching or spoilt beer, so it could be worse.

Tried taping up a 1p and 5p piece under the reset button and it made zero difference. Definitive first-world problem, IMO.

 

[ITMA]

Last thing I do before packing away is lemon juice (from a bottle) after every brew; even if the bottom doesn't look like it's got scorched, after applying the lemon juice it's amazing how much build up there was.

 

[chrisbjones202]

I normally scrape 2 or three times during the boil.
I think most of the build-up is from getting to the boil, I never got round to scraping after that on Saturday and the element was clean where I'd scraped.

I find if you never let it dry it comes off easy enough.