I haven't used it in several years, and I don't remember if this has happened before.
Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)
immediately after taking cold water water and putting it under the steamer? no.
after turning on the heat and having stream pass into the bamboo? yes, especially if there's food in the basket. It's like boiling food, the stream condenses on the food and bamboo, some of the colour from the bamboo and from the food gets dissolved in the water, and falls back down into the main water, changing the colour.
if this happens with just the bamboo basket (no food in it) and smells very bad, it might be a sign that your bamboo has rotted, and should be replaced. The colour isn't a sign of anything.
Plus a cherry on top if you pretty, pretty please.
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