I freeze tane and tubes to -25.
This locks up any water
It helps keep tane liquid during extraction
It helps prevent pickup of unwanted waxes / lipids...
We had their leader and several of his trusted homies imprisoned while we were in Iraq. We radicalized them, then deemed them insignificant and not a threat before releasing them.
Rapid Rooter plugs are best imo.
Your tray is thicker than mine. Play around with it, if anything I'd think the thicker tray with larger air gaps would insulate better. May have to put probe in the tray or turn it up a degree.