If you're storing Tupperware then there isnt much setup to do really. Maybe wipe the inside down with some distilled water if it has a plastic smell then leave it running for 24h to let it get to temp then off you go.
If you want to store boxes then its 1*60g boveda per box and a couple extra because they're not that well sealed. Use some double sided tape or something to get a good spread. Some fridges have a drainage hole which needs sealing with silicone else you may find your rh is all over the place.
If you want to store boxes then its 1*60g boveda per box and a couple extra because they're not that well sealed. Use some double sided tape or something to get a good spread. Some fridges have a drainage hole which needs sealing with silicone else you may find your rh is all over the place.