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Hop aroma not lasting

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Nodrog

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I've had most of my recent dry hopped IPAs taste / smell pretty good for first few weeks after bottling, but after 4 to 6 weeks they,re really losing their aroma. Same in glass and pet bottles. Am bottle conditioning at 20c for 2weeks then storing at 6c.

Any ideas on what I can try doing to improve the longevity of the dry hop aroma? Am using up to 5 g per liter, cascade, Motueka, and s cross, so should be plenty there. Yeast is us05, is easier to post a recipe from work tomorrow than now if it helps.
 

waggastew

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Try adding more of your hops late in the boil (10min onwards) and when cooling the wort (whirlpool) as well as the dry hopping. Also, make sure you dry hop after fermentation is complete. I tend to do mine at 2degC for a week along with the crash chill.
 

Nodrog

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this was the recipe, there are plenty of 5 min, 0min additions (at flameout, then immersion chiller straight on).
Dry hops added in 2 strages, first 1/2 on day 4-5, and 2nd half on day 10, bottling day 14.


The recipe is loosely based on:


http://nzcraftbeer.tv/mash-up-20-litre-recipe/


mashup 39
American IPA

Recipe Specs
----------------
Batch Size (L): 25.0
Total Grain (kg): 7.546
Total Hops (g): 320.00
Original Gravity (OG): 1.067 (°P): 16.4
Final Gravity (FG): 1.017 (°P): 4.3
Alcohol by Volume (ABV): 6.58 %
Colour (SRM): 6.9 (EBC): 13.6
Bitterness (IBU): 73.9 (Average)
Brewhouse Efficiency (%): 70
Boil Time (Minutes): 60

Grain Bill
----------------
5.031 kg Maris Otter Malt (66.67%)
2.515 kg Vienna (33.33%)

Hop Bill
----------------
20.0 g Southern Cross Pellet (12.7% Alpha) @ 60 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 15 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 15 Minutes (Boil) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 15 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 10 Minutes (Boil) (0.8 g/L)
20.0 g Chinook Pellet (9.6% Alpha) @ 10 Minutes (Boil) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 10 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 5 Minutes (Boil) (0.8 g/L)
20.0 g Chinook Pellet (9.6% Alpha) @ 5 Minutes (Boil) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 5 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 0 Minutes (Boil) (0.8 g/L)
20.0 g Chinook Pellet (9.6% Alpha) @ 0 Minutes (Boil) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 0 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 0 Days (Dry Hop) (0.8 g/L)
20.0 g Chinook Pellet (9.6% Alpha) @ 0 Days (Dry Hop) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 0 Days (Dry Hop) (0.8 g/L)

Misc Bill
----------------

Single step Infusion at 67°C for 60 Minutes.
Fermented at 18°C with Safale US-05


Recipe Generated with BrewMate
 

Nodrog

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this was the recipe, there are plenty of 5 min, 0min additions (at flameout, then immersion chiller straight on).
Dry hops added in 2 strages, first 1/2 on day 4-5, and 2nd half on day 10, bottling day 14.


The recipe is loosely based on:


http://nzcraftbeer.tv/mash-up-20-litre-recipe/


mashup 39
American IPA

Recipe Specs
----------------
Batch Size (L): 25.0
Total Grain (kg): 7.546
Total Hops (g): 320.00
Original Gravity (OG): 1.067 (°P): 16.4
Final Gravity (FG): 1.017 (°P): 4.3
Alcohol by Volume (ABV): 6.58 %
Colour (SRM): 6.9 (EBC): 13.6
Bitterness (IBU): 73.9 (Average)
Brewhouse Efficiency (%): 70
Boil Time (Minutes): 60

Grain Bill
----------------
5.031 kg Maris Otter Malt (66.67%)
2.515 kg Vienna (33.33%)

Hop Bill
----------------
20.0 g Southern Cross Pellet (12.7% Alpha) @ 60 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 15 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 15 Minutes (Boil) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 15 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 10 Minutes (Boil) (0.8 g/L)
20.0 g Chinook Pellet (9.6% Alpha) @ 10 Minutes (Boil) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 10 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 5 Minutes (Boil) (0.8 g/L)
20.0 g Chinook Pellet (9.6% Alpha) @ 5 Minutes (Boil) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 5 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 0 Minutes (Boil) (0.8 g/L)
20.0 g Chinook Pellet (9.6% Alpha) @ 0 Minutes (Boil) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 0 Minutes (Boil) (0.8 g/L)
20.0 g Cascade Pellet (7% Alpha) @ 0 Days (Dry Hop) (0.8 g/L)
20.0 g Chinook Pellet (9.6% Alpha) @ 0 Days (Dry Hop) (0.8 g/L)
20.0 g Southern Cross Pellet (12.7% Alpha) @ 0 Days (Dry Hop) (0.8 g/L)

Misc Bill
----------------

Single step Infusion at 67°C for 60 Minutes.
Fermented at 18°C with Safale US-05


Recipe Generated with BrewMate
 

Thirsty Boy

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hop aroma fades.... it just does.

APAs, IPAs etc are all best consumed in that 6 week period (or around about that timeframe anyway) you are talking about.

If your hop aroma wasn't starting to tail off a couple of months after hitting the bottle - there's quite a few brewers both commercial and home that would be chasing after you trying to learn your secret.
 

Nodrog

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Thanks tb, sounds as if I'm looking for the holy grail.


Shame I'll have to just drink it quicker, and use more hops, damn!
 

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