The lines are off the hook this week on Cooking Issues as Dave answers live caller questions from Australia to Moscow. Find out how to make your own sous vide machines at home, truffle infusion tricks and more information on meat glue. Learn about some interesting DIY projects, espresso pump science and leg of lamb cooking tips. As always, novices and pros alike can learn something on the most scientific food radio show on the planet! This program was sponsored by Modernist Pantry The inherent problem with a leg of lamb is the leg has many muscles that want to be treated differently. If you cook a leg of lamb for 24 hours some muscles will be delicious, and then there are others that would be better with a quick grill. That said, sauce can make up for a lot! --Dave Arnold on Cooking Issues