So I thought I might share a tip that has help me to nail down the IBUs I'm targeting in each of my recipes. When building a recipe I've quite often found that the Tinseth and Rager formulas are drastically different, the difference between a Pale Ale and and IPA really. To help with this...
It doesn't get any easier than Highland Brewing bottles. The labels are just 'cling' type stickers similar to something you would put in the back window of your car. They can be peeled off before or after you drink the beer, no water required!