Paneer is now 10 days in, will be prepping a bog standard supermarket jar of something mild & some spinach back half of next week to compare side by side the regular stuff & the smoked, cut from the same block, IF it has matured & lost enough naturally built up acridity from the smoke process. (dubious venting)
On a side note, I now have a local source for as much steel lined PIR foam wall as I can eat, will be popping down in the car & arranging for some decent sized panels to be delivered on an ad-hoc basis which means getting out & digging out an area for a supported insulated base, which in my back garden, might mean laying down a few panels to kill some weeds this summer
Anyone wishing to "play" with this material, rather than mess around with the guts of fridges & simply go for an all weather walk in shed smoker, a rip saw works well, & if you use walls of the same thickness they become fairly well self supporting (but need stabilisation via bracing for weather purposes) then the walls are interlockable from the outset, making construction very quick.
Likely you would want to clad over the structure or affix metal edging but again, fast via a variety of means.
Look for firms local to you who supply marquees / temporary structures, due to the nature of the business they will have plenty of write offs in there yard. For a small structure & going prepared with some idea of dimensions for an entire construct, you could fish enough steel lined out of a skip & cut it on the spot.
Go in, talk nicely, ..take edible samples
(& remember this stuff is light, so if thin panels are on offer simply double them up with a decent sealant in situ).
where you are creating ventilation for either air draw / exit I recommend either fitting a vermin resistant airbrick size hole (a single house brick sized airbrick) with a copper mesh embedded within, rodents dislike copper but stainless steel mesh is also a deterrent.
Single ventilator grill equivalent area:: 10,380 square millimetres- 77% free air flow (depending on how big & hard your smokehouse requires this should be upped accordingly)
While i'm listing odds & sods, ... Galvanized sheet metal: 24 gauge or heavier. Perforated sheet metal grills should be 14 gauge. if you wish to make any outdoor diy smoker project rodent proof long term.
Hardware cloth (wire mesh): 19 gauge, 1/2 x 1/2-inch mesh to exclude rats; 24 gauge, 1/4 x 1/4-inch mesh to exclude mice.
Aluminum: 22 gauge for frames and flashing; 20 gauge for kick plates; 18 gauge for guards.