Food Canning Facts. When processing foods using the open kettle method, jars should still be sterilized. When you cook the foods in the jars, the jars do not need sterilization, but should be thoroughly washed.
Meanwhile, horizontal ridges are more likely to signal a problem. One condition, Beau's lines, is characterized by indentations across the nail bed that are a sign of disrupted growth due to illness.
What do Fingernail Lines Indicate? Most of the time, fingernail lines are normal and do not indicate underlying health issues. Horizontal lines can be fairly ordinary on people who regularly get their nails manicured.