leach out of

leach out of something

[for a substance] to seep or drain out of something. All the nutrients leached out of the soil and nothing would grow. The phosphorus leached out of the soil after a few years.
See also: leach, of, out
References in periodicals archive ?
Hexavalent chromium from CCA is sometimes released to the environment, however; if during the pressure-treating process the hexavalent chromium isn't fixed completely and converted to the more benign trivalent form, it can leach out of the wood in its original form.
Acidic foods like tomatoes can cause copper to leach out of the pot and into your spaghetti sauce or whatever.