Instant coffee should come with a health warning, and a special number to call in case you accidentally get some in your mouth. I found this out when I asked on Twitter, “is there enough caffeine in one jar of coffee to kill me?”. As is often the way with the lazyweb, my friends were only too eager to help:
andy47: @alang: Only one way to find out
carlfish: @alang: According to Wikipedia, the LD50 of caffeine in humans is approx. 150–200mg per kg of body mass, or between 80 and 100 cups of coffee.
tgchen: @alang: only 100 cups…..go for broke.
benaskins: @alang: only one way to find out
kazaskins: @alang – using a dessert spoon or a tea spoon? One would be a slower death than the other.
carlfish: @alang: (This used to be an FAQ on alt.sysadmin.recovery)
josephgrossberg: Alan: Depends on your body weight and liver.
So there you have it. Eat a large jar of Moccona and you’re likely to die of a heart attack.
Thanks to Charles and Joe for the useful information. Thanks to everyone else for your kind thoughts. I hope I can repay you some day.