Erratic IBTS RoR on First Roast

Roasting on the Bullet
21

Smoothing might be good, but not smoothing helps with resolution.

Once a small bean got stuck between the drum and the door, and I saw the change in temps very quickly. Another time the bean chute plug was dislodged a little and I noticed the temp changes very quickly.

If there is an over zealous smoothing feature added to the roast curve it may prevent detecting other anomalies.

1 Like
22

I think the issue is the IBTS is not accurately reflecting the gradual increase in bean temp. There is no way a constant application of heat to the beans would cause IBT to rise in a stepped fashion resulting in the ROR swings. Not sure if this is algorithmic or what.