Originally Posted by Mick
Hey, thanks for that. I'm wondering why you've got the inner tray inverted? Just did an experiment with an old heat mat that's been used to ferment heavy mason jars of Kombucha for a couple of years and it got the container up to 36c, so I'm thinking that a newer heat mat would maybe give me a few extra degrees, but I am wondering if I need to be too fundermentalist about hitting exactly 40c, and if a few degrees either way would work fine.
I'm thinking that crisscross stacking of the cobs would fit many more in than a yogurt maker. Great idea.
Anyone using BPA free plastic for cobbing?
The inverted tray is so the cobs are more uniformly heated, limiting any direct contact to a heat source.
With that said I want to update my fav methods of cobbing:
New order -
1) Dehydrator - 2) Seed Mat & Dome - 3) Crock pot - 4) Yogurt Maker...
The question a couple days ago about the Dehydrator got me thinking more about the air movement and fan in my dehydrator and previous comments I made so it caused me to go out and do some additional testing, timing happens to work currently too
The past two days I've retested the Dehydrator vs the seed mat. Both can hold temps within 1 degree for an indefinite period of time. My Dehydrator though can hold this anywhere from 90F - 160F within one degree. I tested this time with two sensors and it was dead on to whatever temp I set it, when I tested it previously it had moved some, I think it was a faulty temp gauge. I actually also now think the moving air is a benefit and likely to create a more uniform process, think convection.
The time and temp is more about nuances and subtleties. As long as it's wet enough and warm enough > 90 IME, fermentation will start and do it's magic, all curing stages are key too.
I moved Dehydrator above Seed Mat as it has a much larger temp range which is equally accurate. It also doesn't have any off gassing and frankly I just hate the smell. I'm damn sure the Mason Jars and quality Vac bags I use don't let any air in/out but regardless the seed mat and the dome covering it start to smell like crap when heating up above 95F and if I don't need to breathe or smell it then I won't. The trade-off, electricity...
A crock pot just doesn't keep a tight enough temp range or allow for enough variability IME, even the digital ones.
I've bought and returned 2 yogurt makers. I wanted them to work but they are inaccurate, cheap, small and overall quality is terrible.
Thinking a little more.... I have a combo oven/range that is electric and the top range Gas (best of both) but those with a Gas oven and a Pilot.... Has anyone tested the temp in their oven closed with just the pilot on? Depending on your home temp I'd guess this could be an option too....? Anyone with a Gas Oven? Could be a nice option that folks already have, nice size ! Certainly good for stage 2 at the least