There's no way you're going to survive opening this in your wife's kitchen and thinking you're mixing up a gallon. It's a damn good dye, and the last thing you worry about is if your fingers go from blue to normal again. BEST IDEA Out in a place where no one cares, if you're making something blue, take a small glass measuring cup and pour some into it. A little - a little. PRACTICE with the water so you know how many "some" are. Glass is probably the only thing that doesn't permeate or discolor this material. However, if it's your wife's kitchen measuring cup resolution or not, you may be in trouble for a long time. The same goes for the digital scale. If you disobeyed and used your wife's electronic scale, you better know how to get a new one right away. You'll quickly get caught with bruised hands for violating your wife's rights and privacy. I tried a digital scale to measure 4 ounces. That worked, except the scale is now mostly blue. It will never be clean unless you make 55 gallons in a clean keg. I seriously doubt you would consider buying tactile surgical gloves ahead of time, but you will quickly discover their value once you do do not do.
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