do clay pots absorb water
Terra-cotta can range from white to reddish brown in color. Terra-cotta pots are made from clay and fire-baked to form porous earthenware. Terra-cotta pots commonly are used in gardens to hold plants or water, but they have a variety of other purposes.If your terra-cotta pots are unglazed, they can absorb moisture and crack when exposed to extremely cold temperatures.Sealing the pots with exterior varnish or terra-cotta sealer also can prevent mineral and salt spots that form from water exposure.. Clean the terra-cotta pots with warm water and a few drops of dish detergent on a soft-bristled scrub brush. For mineral spots, wipe the pot with a cloth dampened with full-strength white or apple cider vinegar.