My thread on my boil kettle have alot of build up

[metalpysko]

I need something to break down hops and sugars built up in my stuff any idea?

 

[bob352]

Bar Keepers Friend.
Sprinkle on. Add water. A little scrubbing. Let it sit for an hour.
Works great on my ss pot.

 

[chumpsteak]

Yeah, don't use that on aluminum unless you want to build the oxide layer back up. If it's just a little gunk don't worry about it. You're boiling it anyway. If it's a lot then you probably need to take the fitting apart and soak it. Hot water and a paper towel is all I use on my aluminum kettle. It has sugar and hops residue in it and has worked flawlessly with no infections.

 

[SpikeBrewing]

I need something to break down hops and sugars built up in my stuff any idea?

What material is the kettle?