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The oil has the texture of regular vanilla ice cream, slightly sticky, like you find in those street stalls. Apart from the color, I didn't notice any other differences from regular ice cream.
And yes, charcoal is beneficial; I've swallowed it a couple of times in handfuls when I ate something that didn't agree with me. You shouldn't overdo it, but compared to the amount of sugar in ice cream, charcoal is quite harmless.