Beverast but to be honest the tubes are not filling me with confidence. I don’t want to be ordering new tubes every few weeks. Will replace the faulty tube over the weekend.
In the video the tubes looked pretty bright, that in itself can reduce lifespan significantly if they are being over powered for their environment. Simplistically that type of tube is to radiate heat away, and it’s not meant to reflect back. The fact that it’s in a roaster and close to the drum is going to make it super hot in there. It does depend on the types of heaters a little. I do wonder if a ceramic kiln style heater might have been a better choice.
https://www.dykast.com/products/ceramic-heating-elements/5068
One of the things for sure is, just because you have 2kW st your disposal, doesn’t mean you have to use it….sure in a cold environment you might need more of it. From memory, I think many of your roasts seemed rather fast, perhaps I am wrong.
Your well over seems to be 11 minutes…I would recommend a much longer roast time. Aim for 13.5 to 14.5 minutes for a little roaster…irrespective of light or dark roasting. This will put you more in the ballpark, give a better developed roast and allow you to use lower heating power (which would extend the life of the elements). “pushing” the roast with lots of power really isn’t the way and definitely gives less even roasts.
I know there’s a lot of stuff talked about on the web, but most of it is rubbish when applied to home roasting. In a roaster of that size, you shouldn’t really need to be inputting more than 1600W or so of heat energy, for a Kg in this sort of weather, I use around 2300W!
As always though, I’ve never used the Cormorant you have, or examined closely it’s tech, so take all my comments with a pinch of salt.
