Starbucks coffee. Eight-ounce coffee. 155 to 195 milligrams. Folgers classic roast coffee. Two tablespoons. 120 to 160 milligrams. Ryze mushroom coffee. One heaping tablespoon. 48 milligrams.

For example, if I top up my Starbucks account with $10 using the Starbucks credit card, I'll earn 10 Stars. Once I spend the $10 at Starbucks I'll earn another 20 Stars, for a grand total of 30 Stars.