| ▲ | hrldcpr 2 days ago | |
You're right that the caffeine isn't entirely removed, but it's supposedly more than 90% removed. (I'm even seeing the number 97% mentioned a lot online.) | ||
| ▲ | winrid 2 days ago | parent | next [-] | |
The bean is already only like 2% caffeine lol so cheap decaf can definitely really be "half caf" even if they say that. | ||
| ▲ | jeffbee 2 days ago | parent | prev [-] | |
That fraction is going to depend a lot on the definition and the reference. I believe the 97% is the US standard for how much of the natural caffeine in green beans must be removed. You will note how this can be manipulated by using a more caffeine-abundant variety. EU standards are more sensible, stated in terms of caffeine content in the final product. Either way, commercial decaf processes and normal brewing methods will yield something like 5-10mg of caffeine in a "decaf" dose of coffee, which is an order of magnitude less than usual. | ||