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My guess is it is just the bags that smell all the same and not the resins. I suggest putting resins in a separate small ball jars like these and toss the bags (be sure you label your jars).
https://www.amazon.com/Ball-1440080400-4-Ounce-Quilted-Crystal/dp/B07D4PRPVL/
Here's a 12pk of 4oz ball jars in case you do a really big press.
https://www.amazon.com/gp/product/B07D4PRPVL/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
For the most part though, I just reuse the nicer jars from the dispo. Just clean them with ISO.
If you give your cat wet food then a 4 ounce [118 ml]glass jar (the link is for a pack of 12 of the Ball brand ones with lids) works great for keeping the wet food fresh and from stinking up your fridge. The big cans of wet food are 5.5 ounces [162.65 ml] so they have enough room for leftover food. I also washed the food bowl with hot water between each feeding, making sure it has been scraped clean and wash with dish soap once a day, rinsing it really, really good (I certainly wouldn't want to eat out of a dirty dish and I wouldn't think it'd be pleasant for the cat either). If you don't have a water fountain- change the water in the bowl as needed, mostly by making sure the bowl is clean, there's nothing in water and the bottom isn't slimy (for the same reason as the food bowl).
I don't know if this would work as a occasional treat or if your cat needs more fluids (if it's a bad idea someone say so, nicely please). Make a weak catnip tea for them: Start by boiling water, then add the catnip, let it sit for 3-5 minutes, strain it, let it cool completely (or stick it in the fridge until it's cool), and then give it to the cat. I'd make it so I couldn't smell or taste the catnip, so it might have to be watered down a bit. I'd say no more than a 1/4 cup [60 ml] of the tea, I don't know how often but probably not more than 1-2 times a week. (Again if it's a bad idea please nicely say so, it was a random thought I just had.)