Rolling boil and escaping nasties

[manticle]

Very common brewery in Belgium or Germany.

Looks exactly like my keggle

 

[Fylp]

i read somewhere you can float a saucepan in the kettle and it gives the same effect of boiling with the lid partly on, but doesn't have the down sides of boiling with the lid on

Works for sure. After considering a million options and half building one, the simplest work fine. Champion Moog!

 

[Nizmoose]

This is not the experience or practice supported by the German designers of the Braumeister

Wobbly

There is surely no way to compare a metal dome shaped hood which has been specifically designed to vent steam, get hot and prevent condensate from falling back into the kettle to simply leaving the lid of a normal pot slightly open. A pot lid (unlike the brau lid) will simply collect a whole heap of condensate and throw it back into the kettle. Not comparing apples to apples at all.

Yes but they have designed a specific system that has been tested multiple times with every single thing taken into account. It's much more complex than lid on vs lid off. Whatever percentage of 'lid on' they have worked out in conjunction with the vigour of boil and anything else can't really compare to a pot and burner/stove/ots element.

It's not a case of x does it, therefore it's ok until you know and can replicate what x actually does.