Avoiding loss of aroma from dry hopping

[letsbrewit]

Well if many bottled dry hopped beers retain their aroma just for some weeks (This agrees with work performed by Peacock et al., who found that after 18 days of storage 80% of the hydrocarbon terpenes had disappeared from a bottled model beer)

Which practices we can achieve to get a little more aroma time in beer bottles?


Regards.

[MN_Nice]

We started using a hop cannon last Fall and it's improved our hop aroma and flavor in the final product...also less risk of O2 absorption because we never really open the tank to add the hops. Just hook up the cannon to the PRV arm with a little output pressure going through the hose and then blast the hops into the tank gradually.

[beejay]

Where did you get your hop canon or was it something you built or had built?

[letsbrewit]

nice you have a hop cannon, do you use less amount of hops to get your aromatic profile target?

[MN_Nice]

Sorry for the delayed replies, didn't notice more posts here

BeeJay: Fairly simple design but definitely requires custom fabrication. No "off the shelf" versions on the market that I'm aware of

letsbrewit: No we use the same amount of dry hops. Our preference was to increase hop aromatics in the final product over cutting back on ingredient costs.

[Wild Onion Pete]

Where did you get your hop canon or was it something you built or had built?

I believe Specific Manufacturing out of canada does fabricate the hop cannon.

[MN_Nice]

Yes Specific Manufacturing is the way to go. It works pretty well, just be aware that you'll probably need to come up with a solution to get around the BV in your PRV in order to make it work correctly. We use 2.5" valves leading to a 2.5" PRV pipe on our fermenters and we had major problems with the hops clogging the valve and getting stuck all the way up into the hop cannon hose. Ended up creating a process where we remove the entire PRV butterfly and hook the hose straight to the PRV arm with no valve in between. We also modified the exit valve on the bottom of the cannon to work off a compressed air powered pneumatic setup instead of a hand operated valve. It takes a lot of force to open that valve and not only was it hard to operate by hand, and the valve seat kept wearing away easily. Much easier now

[scmorgan]

I believe Specific Manufacturing out of canada does fabricate the hop cannon.

Any contact details, google yielded little ...

[Kent C]

Try this: http://specificmechanical.com/
They are quick to respond.

- Kent