Why do artichokes turn brown? Their flesh contains a substance which reacts when exposed to oxygen. Scientists call this enzymatic browning. Prevent it by keeping trimmed artichokes fully-submerged in water with a fair amount of lemon juice or vinegar. The best way is to weight them down with a plate or other object, so they stay in the water.
What's the difference between globe artichokes and baby artichokes? Actually, they are both picked from the same plant, at the same time. The artichoke plant sends up many flower stalks, reaching different heights and yielding different size artichokes. The main difference is that the bigger artichokes will be tougher and have a larger choke to remove, while the baby artichokes will be more tender and have a very small choke or no choke at all.