Old Hops

[nosmatt]

About to restart my home brewing, been a long while! Too many other issues, I had to stop for a while.

Anyway, my question pertains to my hops, i have a couple pounds of whole hops, 08 growing season. they have been in a dark freezer since I bought them. are they ok to use? How would I calculate the lost aa ?

Any help appreciated. next weekend is a brew day, if I must buy new hops, I will, but these varieties are not available @ more beer....

 

[Nateo]

Different hops have different stability indices. To calculate AA loss, you need to know the age, HSI, and initial AA% of each type of hops. Beersmith has a function that does that for you. Don't know of a calculator that would do that online, but if you want to tell me what hops you have I can crunch the numbers for you.

 

[cfonnes]

To make a sour beer that I have planned I purposely have a few ounces of hops laying around in open air at room temperature, it will take a couple of years for them to age and get the AA value down to zero.

 

[nosmatt]

forgot about beersmith, woops! ill put my recipe in and decide weather to use or now... too bad i didnt vacuum seal them... i have one too, no excuse!