Twinings English Breakfast Tea was originally blended to complement the traditional, hearty English Breakfast, from which its name derives. The refreshing and invigorating flavor makes English Breakfast one of the of the most popular black teas to drink at any time or occasion, not just for breakfast. English Breakfast can be enjoyed with or without milk, sweetened or unsweetened - the choice is yours. Each of the four boxes come packed with 24 K-Cups that can be used with any style or model of Keurig brewing machines.The Keurig single-cup brewing system uses a special packaging for coffee, tea and hot cocoa called K-Cup portion packs or "K-Cups". Each K-Cup is an airtight, mini-brewer that locks out oxygen, light, moisture and humidity while locking in freshness and flavor. Simply insert the no mess K-Cup into the brewer and hit the brew button for a fresh-brewed, perfect cup of coffee or tea in under a minute.