Burnt bottom!

[MashBag]

How much water is that for? I have a habit of treating 8 gallons of water prior to a brew day, you never know when you might need a drop more

I should have mentioned that. 30l

At 8gall 36l is 49.38ml

 

[Buffers brewery]

First outing of the Digiboil today. Still managed to burn.....or rather singe the bottom.

Mainly because I thought I needed to boil off some excess water and left it to boil too long at too high a heat. Will do better next time

P.S. it cleaned off a lot easier and wasn't as beadly burnt as the previous boiler.

 

[Brew_DD2]

First outing of the Digiboil today. Still managed to boil.....or rather singe the bottom.
View attachment 91136
Mainly because I thought I needed to boil off some excess water and left it to boil too long at too high a heat. Will do better next time

P.S. it cleaned off a lot easier and wasn't as beadly burnt as the previous boiler.

Some residue like this is perfectly normal. Baked on black like the high density elements is what ruins a wort.

 

[Agentgonzo]

Agreed. That smallish amount of brown residue is normal.

 

[peebee]

Agree too! Some matter collecting is inevitable ... it's the grain proteins precipitating out ("break"). I wipe it off with one of those soft microfibre clothes. This if the inside of my Grainfather after numerous brews:

Given the amount of burning on @Buffers brewery's earlier pic, I think you can safely say that older boiler was getting way too hot, or ... the water treatment then was ineffective!

Yeah, I know, so I have a "hard water" prejudice! And "chalk" precipitating out and sticking to the hot element surface will roughen up the surface, cause the break to stick to it, where it will burn. But there's a problem with that: We treat the water so we are all using near enough the same water for a particular beer. The "hardness" of the original water has nowt to do with it. UNLESS, you weren't treating your sparge water, at least by acidifing it (considered by some to be unnecessary, but here we have an example where it would be necessary!), or whatever the previous water treatment, it wasn't having the desired effect (still loads of "chalk" in the water to precipitate out on boiling).

 

[Larse]

I've had this happen regularly with my Klarstein Maischfest. I recently added a bazooka filter, but this meant that the grain basket was sitting on it, so I used three short pieces of 3/4" plumbing pipe (plastic) to raise the basket above the filter. Lo and behold, no burn marks. My conclusion is that the base of the grain basket is too close to the heat (~2cm) and this was causing the burning as there wasn't enough circulation room under it.

One swallow does not make a summer, so I'll see if this continues to be the solution I think it is.

 

[Stu]

I've had this happen regularly with my Klarstein Maischfest. I recently added a bazooka filter, but this meant that the grain basket was sitting on it, so I used three short pieces of 3/4" plumbing pipe (plastic) to raise the basket above the filter. Lo and behold, no burn marks. My conclusion is that the base of the grain basket is too close to the heat (~2cm) and this was causing the burning as there wasn't enough circulation room under it.

One swallow does not make a summer, so I'll see if this continues to be the solution I think it is.

I was thinking about this as I had the same problem.
I've stopped it by putting a bag in the bin. I find it makes it easier to sparge too. The holes are too big and finer particles fall through the holes and burn on the bottom.

I've said this before, I'd really like a proper fine mesh bin for it. But I can't find one that fits.