Black Insomnia claims to be the world’s strongest coffee.
“One 12-fluid-ounce (355-milliliter) cup contains nearly double the recommended daily allowance of caffeine.”
For some reason it doesn’t seem to come in instant.
If we were going to use it at MGPC, I’d be aiming for people to drink it before the service.
mgpcpastor's blog 
It comes in capsules, which is the same thing.
True
I thought Death wish coffee was strongest coffee but I am bit bored with them. Will use Black Insomnia but sad Nespresso capsules are sold out but I just ordered beans. Now my grinder brewer(just bought one) is waiting for them to make a strong sorry strongest cup of joe. Hope that will help me to give a nice kick in morning