I was trying to setup fermentation chamber by using 7 cubic feet freezer from Lowes and Ranco temperature controller.
What I'm observing is a huge temp variations. Two days ago I have set controller at 68 degree with differential of 3 degree, which means it turns the freezer on at 71 and turns it off at 68. I have put controller probe into a glass jar full of water standing on the bottom of the freezer. What I'm observing is the fact that temperature can drop as low as 61 degree.
My understanding is that when Ranco detects 68 degree and turns the freezer off than there is enough "latency" in freezer to keep cooling for some time.
Is that normal ? Is this toatl 10 degree variation will be an issue for my fermentation ? And how to remediate it ?
What I'm observing is a huge temp variations. Two days ago I have set controller at 68 degree with differential of 3 degree, which means it turns the freezer on at 71 and turns it off at 68. I have put controller probe into a glass jar full of water standing on the bottom of the freezer. What I'm observing is the fact that temperature can drop as low as 61 degree.
My understanding is that when Ranco detects 68 degree and turns the freezer off than there is enough "latency" in freezer to keep cooling for some time.
Is that normal ? Is this toatl 10 degree variation will be an issue for my fermentation ? And how to remediate it ?