“Don’t tamp it this time,” my son says. “What?” “With my Gaggia,” he says, “I’ve stopped tamping. I get better crema. Try it.” The coffee, he means, in the filter basket. It’s a Saturday morning. I’m making him an espresso in my Delonghi Dedica Deluxe Pump Stainless Steel Espresso Machine. When you make espresso with…More