Since being introduced in 1993, McDonald's signature McCafé beverages have ... Similarly, the McCafé Mocha Frappe is made with "Mocha Coffee Frappe Base," which contains -- you guessed it ...
contacting McDonald's customer service directly seems to give some consistent numbers: 75 milligrams (mg) of caffeine in a small frappé, 85mg in a medium, and 130mg in a large. The mocha frappés ...