Post-fermentation

Question 1

How is a wine tested for copper instability?

Answer 1

Fill clear bottle with wine, place on warm window ledge in direct sunlight for seven days > reddish-brown deposit

Question 2

What flavours are imparted by different barrel toasting levels?

Answer 2

Light toast: wood
Heavy: spice, toast
Under-seasoning/under-toasted: sappy, astringent