Induction cooktops use electromagnetic currents to heat pots and pans directly, transferring 90% of energy to the cookware compared to 50% for electric and 60% for gas. Speedcook ovens combine microwaves, convection, and light waves to cook 15 times faster than conventional ovens. The Vorwerk Thermomix TM 31 is an all-in-one countertop appliance that can blend, steam, boil, grate, whisk, knead, chop, and weigh for $1,400. Online grocery services deliver fresh local produce to customers' doors within 24 hours in some major cities.