Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
OTA transfer to different coffee drinks according to the volume of water.
| Coffee drinks | Volume of boiling water (mL) | Transfer OTA from ground coffee to coffee drink (%) | Amount of OTA (ng/cup of coffee) |
|---|---|---|---|
| False Turkish coffee | 100 | 66.1 | 4.26 |
| Lungo | 80 | 54.5 | 3.51 |
| Turkish coffee | 100 | 51.7 | 3.33 |
| Americano | 100 | 50.8 | 3.27 |
| Espresso | 30 | 32.2 | 2.07 |
| Doppio | 50 | 30.2 | 3.89 |
| Ristretto | 20 | 22.3 | 1.44 |
