When to dry hop?

[FaanP]

Must you wait for fermentation to finish or can you start dry hopping during the fermentation process?

[jannieverjaar]

Now you drop a bomb like that this early in the morning.....

The short answer is when you like. The longer one is 4 to 5 days before bottling. Longer leads to grass but thats been disproven. Earlier during fermentation leads to bio transformation. You can google it. Some say it has a huge affect and others Dr. In brewing say it doesn't affect much.
Others say 3 day dry hop is when you have max flavor
Its up to you

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[CaPunT]

I do it just before fermentation is done so that it replenishes the CO2 lost from opening and adding the hops.

[FaanP]

Thanks all - will start my dry hop schedule tonight then .....

[Langchop]

Of the many theories I have heard, the following comes up most and seem to have most legitimacy to me, whether valid or not:
-Dry hopping while there is still off-gassing (fermentation) results in loss of hop aromas
-Dry hopping more than 2 days does not add anything further to the beer [and in my mind, frankly, more days starts eating away into the "fresh hop days" you have after bottling/kegging]

So as a rule I stick to 2 maybe 3 days only before bottling, and only after fermentation seems done


EDIT: I usually just tie that in with my diacetyl rest, when applicable

[Jitters]

Dry Hop At Yeast Pitch vs. Standard Dry Hop In New England IPA | exBEERiment Results! | Brülosophy (brulosophy.com)

Biotransformation vs. Standard Dry Hop | exBEERiment Results! | Brülosophy (brulosophy.com)

take it for what it's worth, one data point.

I agree with lang, based on smart people measuring hop saturation in beer after 2 days the key indicators do not increase so anything longer is pointless, according to them.

[FaanP]

Thanks for all info !!!

Thus if I have a hop schedule like this for example:

10g 4 days before bottling
10g 2 days before bottling

It can be replace with

20g 2 days before bottling or with 20g 4 days before bottling and the taste will be same? (What I read from your comments and from the articles posted)

[Langchop]

Thanks for all info !!!

Thus if I have a hop schedule like this for example:

10g 4 days before bottling
10g 2 days before bottling

It can be replace with

20g 2 days before bottling or with 20g 4 days before bottling and the taste will be same? (What I read from your comments and from the articles posted)

Thats a good question! I think you need to split your batch in 2 and tell us the variances afterward

[FaanP]

Started my dry hopping last night and this morning my fermentation fridge smelled AWESOME

[BeerHolic]

I never dry hop for mare than 3 days, unless bio-transformation.