interesting . meta and qeizo seem to be in a loopy confusion ..
im gonna take it you have all these old filters ( which i hope have been stored and sealed after blast, and dry) ( i would throw mine in a ziploc)
well.. you got a whole combo of crap on them, if you only ran primo buds and trim, you might have a nice collection of filter oil to obtain.. buttt if you were running anything and everything, (which included a lot of nasty or not so pretty/tasting runs) then your oil will be contaminated with that( meaning you will only get such a good quality extracted out) ..
i used to collect ALL filters, rinses of tools, rinsed plates etc into one ISO jar in freezer.. welllll. once it came time to re winterize, my end product was well.. alright.. not comparable to a nice run, but shit, something to eat/smoke. ( a lot of it though
)
i now divide collections of reallyyy good rinsed filters/tools into one jar, and divide not so good rinses into other jar.
my friend, in your case.
i have never packed an entire tube with blasted used filters...nooo freaking idea how well that will work.. but sounds interesting!!
i instead, would put all those filters into a mason jar.. pour enough room temp 99% ISO or better over the filters.. swirl around. swirl some more(dissolve everything in jar till liquid becomes nice amber).. from there, I would freeze entire jar over night, then strain liquid through (new clean) filter into pyrex..
freezing liquid helps it run through filter without getting it clogged.
my 2 pennies