Did you mean ‘melted’?
https://www.vice.com/en/article/gvkmpq/this-canadian-brewery-is-turning-icebergs-into-beer
Yes. Melted/molten. I struggled briefly with the choice of adjective there. Settled on “molten.” I think that they are synonymous...
molten
[ mohl-tn ]
adjective
liquefied by heat; in a state of fusion; melted:
molten lead.
melt
See synonyms for: melt / melted / melting / molten on
verb (used without object), melt·ed, melt·ed or mol·ten [mohl-tn], melt·ing.
to become liquefied by warmth or heat, as ice, snow, butter, or metal.