It is always cold smoking on this unit to keep things clean & simple, if anyone from st elsewhere happens to remember what I used / can use for the better replacement that crumble off (3 or more winters & summer heat, is acceptable imho) i've got a few kilos of my Tarmite (copyright gus)

Context: food can attract rodents, this stuff has to be smoked outside for nigh on a week which is a lot of time for inquisitive animals, & also keeps insects at bay without blocking the bbq airflow as the wood mix is contained in a separate vessel.
What's cheap & food-safe to stick it to the inside bowl with, have things changed since I last did it? in terms of running a silicone sealant & weighting it till it dries (several bricks weight i'm guessing)
No wish to poison folk.