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).
1 Top with the remaining green onions, mushrooms, and napa cabbage. 2  Drizzle soy sauce and water over everything. 3  Place steam bowl in a steamer over 1 inch of boiling water, and cover. 4  Steam for 15 to 20 minutes, or until fish flakes easily.5  Garnish with cilantro, if desired. Top with the remaining green onions, mushrooms, and napa cabbage. 2  Drizzle soy sauce and water over everything. 3  Place steam bowl in a steamer over 1 inch of boiling water, and cover. 4  Steam for 15 to 20 minutes, or until fish flakes easily.