Colander morphs into steamer: Put colander into pot of boiling h2o; do I need a lid or to enclose whole?!

Question: colander in aluminum or will setting colander over hot h2o be enough to steam veggies?

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Answers: colander in aluminum or will setting colander over hot h2o be enough to steam veggies?

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cover it. that will allow the steam to cook quickly without loosing water to evaporation

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