Containers may explode in the heat of a fire. Extinguishing Media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers.
Blanch the greens (optional). This will preserve the bright, green color, but the beet greens will cook fine without it. Here's how to go about it: Prepare an ice bath: a bowl of cold water and ice. Submerge the greens in boiling water for one minute. Remove the greens with tongs or drain them into a strainer. Place them in the ice bath until cold.
Add the greens. Cover the pan and cook until tender. Chard and beet greens will take 8 to 10 minutes; kale, mustard, turnip, and collard greens will take 20 to 25 minutes. Drain the greens well in a colander, pressing to remove excess liquid. Toss with 1 tablespoon butter or olive oil, if desired, and season to taste with salt and pepper.