I guess I waited too long to edit my original post, but here it is again with the promised picture…
Here’s one. We generally (always) decarb in a stainless steel pot on a hot plate with overhead stirring. When I decarb and I want to keep my terps from evaporating I use a glass lid with the center knob removed, invert it and put the stirrer through the center hole. The terps noticeably drip back into the pot! Also, most of these same lids have a thermometer hole so I slide my digital thermometer down the hole, run a rubber band from the pot handle around the thermometer shaft to keep it off the bottom and away from the stir shaft.
And for smaller batches…
