Behmor Mod #2 – Bean Temp Probe

[Agrajag]

That looks tip top. I'm wondering how it will help you with your roasting, as in how will you use it to improve your roasts? I have installed a heatsnob in the way suggested on my behmor (up the back/top) but am pretty new to roasting so at this stage just collecting data and seeing what affects what. Since I'm not getting bean temp I'm really just hoping that the relative data (comparing roasts) will help, as I can only see what's going on in an indirect way. I'm hoping this is good enough. I'm unfamiliar with graph you've posted and the legend is too small to read, what are the other colours?

What is the minimum roast size with your setup that the probe sits inside the bean mass? Is 200g enough?

[MrFreddofrog]

Well done
That profile looks spot on!

Cheers Matt

Thanks, I'm new at this so I need any feedback, good, bad or otherwise.

[DesigningByCoffee]

Well done
That profile looks spot on!

Cheers Matt

[MrFreddofrog]

…. and then drill through both inner and outer panels for probe access. Fit a cable gland and an offset bolt to prevent the probe from spinning in the drum. Cut small section off the drum vanes to ensure the probe doesn’t foul them. Bend probe, insert and job done!

(Instead of the fitting, next time I’ll just use a hollow threaded rod used to make lamp stands, cheaper, easy to find and more clearance for the probe. And looking at it now, it doesn't seem cutting the vanes was actually needed but better to be safe that sorry I guess.)

In the temp charts, bean temp is the dark green line.

ps. To those who have a stake in Behmor, what do you think if they pre-drill the spindle and panel holes? They could then sell bean temp probes as optional extras.

[MrFreddofrog]

After much brain scratching here’s my simple approach that didn’t require a lathe or the drilling precision of a dentist.

Cut off spindle, drill hole, insert hollow threaded fitting and secure with backing nuts. Enlarge slot holding the spindle and .....