Caffeine Pills Recommendation

I sometimes put coffee beans into my morning smoothie. It’s delicious with chocolate peanut butter, and adds a nice texture/crunch. Like those chocolate covered espresso beans. From what I’ve found online, an average bean contains 6-10mg of caffein. It feels like a more buffered dose of caffeine when I do this, vs drinking a coffee, I guess it may extract more slowly in the gut than it does in boiling water.