Renewable: Sunglasses Made With Castor Bean Oil

The frames of these sunglasses (Dragon Experience Eco) are not made with petroleum. Instead they are made with Nylon 11, the only commercially successful high volume biopolymer, which is made by polymerizing a split segment of castor bean oil.

Green Coffee Beans

Roasting your own coffee beans at home is quite simple. It takes about 5 to 15 minutes and you get the freshest coffee around. Green or raw coffee beans can be bought for $4 to $5 per pound, about half the price of the roasted kind. Look for fair-traded, organic coffee beans — it’s the metaefficient choice. Sweet Maria’s is …

Criollo Chocolate: Efficient Food of the Gods

In its pure state, chocolate, or cacao, is quite nutritious, and inspires eudaimonia. There are number of varieties of cacao. Almost all commercial chocolate is made using beans of the Forastero Group. Another more prized cultivar, Criollo, is used by the top chocolate makers around the world. It is less bitter and more aromatic than any other bean.

Heirloom Beans: Efficient Flavor

Heirloom beans! These are special bean varieties that have been passed down by generations of growers. The beans have their own distinct flavors and heritages. For example, here’s a description of the “Tongues of Fire” bean: A cranberry-type, mottled beige and brown marked bean grown from a seed variety originally collected from Tierra del Fuego, on the tip of South …