getting an unwelcome jolt these days. a cup of joe is becoming harder and harder to find. shasta darlington explains why from havana. >> reporter: cuban coffee. these days a little more bitter with less of a jolt. that's because beginning this month the coffee offered on the communist country's ration card is mixed with roasted peas. a combination they thought they left behind in 2005. but the soars price of coffee imports made the government change their mind. some like this car park guard welcome the change. the first time i had coffee it was mixed with peas, he says. i liked it, and i'll keep on liking it. but most cubans are not nearly as complacent. undeniably the mixed cough is inferior quality, he says. you don't have to be a scientist to know that. the quality just isn't the same for those who like to drink good pure coffee says another woman. in fact, the new mixture is only