We’re 220v here, so I’d assume that’d be the faster/more powerful of the two?
You could also be losing power due to the controller board over heating.
I did a butt load of trouble shooting and posted my results somewhere here, but the cliff notes version is unless you have a fan blowing across the electronics, the bullet will throttle the power. I think it started happening around the 7 or 8 minute mark of the full burn where you’re just sitting on P9.
I had also emailed him about the exact same issue, but found the above to be the issue rather than the voltage difference.
Edit: It will not throttle at all power levels, just when it overheats the electronics, which for me was when the power level was held p9 for an extended period of time.
Edit edit: 900g Full Flame test
Here’s were I started getting into the wattage drop.
And it only took 4 minutes to start overheating and throttling
Interesting/concerning. And no indications were given by the Bullet that it was throttling (warning light, indication in roasttime etc.)?
I understand a roast of this style isn’t something that the Bullet is intended to be used for, but a variable such as throttling being brought into the equation (without clear alerts to the user) makes it tricky to establish the playing field, if it is indeed happening.
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If you go into the information bubble during the roast, the top most number is the sensor temperature. It’ll turn yellow, then red as it gets hotter, and eventually throw an error code and abort if it gets too hot. Although that might be fixed depending on your firmware.
There is no outward indication of throttling.
Aillio is aware and they were the ones who provided the fan solution. I do believe the issue is the components were designed for 220v, so lower amps would normally be used. Again, that’s what I thought I saw but don’t take it as gospel.
Now all that being said, I’ve been roasting probably 3kg weekly, occasionally more for almost two years straight and I’m happy with the outcome.
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I’ve done Mortensens’ course too. I learned a lot. It’s interresting how much you can control a roast just by moving the first and second reduction points a little.
Something else I came across that I found very helpful is a YouTube with Anne Cooper about her approach to roasting and what she uses as checkpoints along the way. Her approach to managing gas doesn’t work with the Bullet, but the checkpoints seem very useful.
I’d be interrested in hearing how other peoples’ best roasts compare to her checkpoints. There is a slide about 28:16 that shows her parameters.
I’m keeping a spreadsheet of these parameters for my own roasts to see how well they work for me.