Coffee is the biggesttary source of caffeine. You can expect to get around mg of caffeine from an average cup of coffee. However, this amount varies between different coffee drinks, and can .Folgers Cl.ic Roast Half Caff blend provides half the amount of caffeine as its caffeinated blends. The caffeine content per oz. is mg. It is mg for oz. and mg per ounce..Caffeine levels in coffee vary even more than simply being caffeinated or decaffeinated. The roast of the coffee and the coffee bean play a large role in how much caffeine the coffee contains. Understanding how these affect the caffeine levels can help coffee drinkers choose a coffee that best suits their needs. Caf.Folgers coffee was introduced in in San Francisco, California. As of , there are ninends available in the Folgers product line. Single serve packets can be enjoyed on the go and only require the addition of water..