Wood will expand and contract across the grain, and a wide panel made of solid wood could change width by a half of an inch, warping the door frame. By allowing the wood panel to float, it can expand and contract without damaging the door.
Put trimmed and cleaned green beans in the steamer basket, set over the boiling water, cover, and steam until tender to the bite, 3 to 5 minutes (depending, again, on how crisp or tender you like your green beans).
Blanching green beans involves two main steps: boiling the green beans for about two minutes, then putting them in ice water immediately after and until completely cooled. When done correctly, you can achieve a crunchier texture, brighter color, and delicious flavor. Prep time: 10 minutes. Cook time: 20 minutes.