I just brewed my first batch and the hops came packaged with the alpha acid content printed on the package. I received some cuttings from a friend and started growing my own hops. Given that there are bound to be a lot of variables such as water, nutrients and other things, how will I be able to determine the alpha acidic content of my home grown hops?
I was also wondering if hops are like grapes in that the variables I mentioned above will ultimately affect the sugar content of grapes. Will the alpha acid content change in my hops from year to year or do they remain relatively the same?