the Depth Charge is a special lid with a stainless steel cage attached so you can add fruit, wood, dry hops, whatever to either a primary or secondary fermentation.
this is very easy to use and worked incredibly well with my most recent DIPA.
in the past there was always some hop debris that i couldn't get rid of when dry hopping, but this truly does keep everything contained and easily removed so you determine how long anything ages in your beer.
i would rate this an 8 out of 10, due to the SS mesh having a few 'prickly points' along the seems and it's a little annoying getting tiny stab wounds when having to handle it enough to clean it after usage.
i'll add more details once i try to use it with fruit puree...i'm not sure if the mesh is fine enough to prevent it from seeping out...