Question for Roccbox owners - blue flame or yellow?

[omniflow]

Hi,

A question to Roccbox owners who use the gas burner. When running on high, does yours burn with a yellow flame, or a blue flame?

Mine has always burned with a yellow flame, which may be correct, but I know a blue flame will be hotter.

Thanks

[DKL]

Slow to the party but mine seems fairly yellow and there is a decent about of soot. But it gets from cold to 400c in about 35mins so can't be that bad. IIrc they claimed cold to 500 in less than 30mins but that's really optimistic in my experience.
Either way I'm very happy with it.