I've been struggling a bit to get hop aroma into an IPA, and I think maybe my hop bags aren't letting enough wort get into the hops. I've been adding 50g of Simcoe to 20L of wort 5 minutes before flameout and getting a fairly plain beer. 25g of the same hops as a dry is doing nice things for me.
Anybody have strong feelings about bag or no bag for late additions?
Here's a picture of the bag material: (cheap disposable Chinese Traditional Medicine bag) . The bag is about 20cm x30cm over all.