Zinc is a metal that is normally found in small amounts in nature. It is used in many commercial industries and can be released into the environment during mining and smelting (metal processing) activities. People living near smelters or industries using zinc could be exposed to higher levels of zinc by drinking water, breathing air and touching soil that contains the metal.
Step 3: Blanch the green beans. 1  Bring a large pot of water to boiling. Allow 1 gallon of water per pound of green beans. 2  Fill a large bowl with ice water. 3  Working in batches, carefully lower the green beans into the boiling water.  Boil small beans for 2 minutes, medium beans for 3 minutes, and large beans for 4 minutes.
Eat & Live Well! A different response: One cup of fresh green beans with a bit of water takes about 3-4 minutes to cook in a microwave oven. Increase time by about 2 minutes for each cup of beans, checking frequently for done-ness. Canned green beans only need about 2 minutes to warm 2 cups with a bit of liquid.