Please choose the correct solution to the question: blanch spinach

Solution1: bring a large pot of water to a rolling boil. Add the spinach stems first and then push the leaves down to submerge them in the water. Blanch until the stems are no longer rigid (about 40 seconds) and then drain the spinach and dump into a bowl of cold water to stop the cooking immediately.

Solution2: bring a large pot of water to a rolling boil. Add the spinach stems first and then push the leaves down to submerge them in the water. Blanch until the stems are no longer rigid (about 40 seconds) and then drain the spinach and dump into a bowl of hot water to stop the cooking immediately.

Answer format: solution1/solution2
Answer: solution1