Ebstein Anomaly Ebstein anomaly is a rare defect in which the tricuspid valve, which prevents backflow of blood from the right ventricle into the right atrium, is deformed. The right side of the heart is where deoxygenated blood from the body is pumped into the lungs for oxygenation.
Buttermilk never expires. Ten days after the expiration date, just boil it for a few minutes and let it settle for a while. It makes a great dry yogurt in the form of cookies. They last for years.
Like milk, buttermilk can be frozen up to 3 months, but it is not recommended because it tends to separate. If you do freeze buttermilk, let it thaw in the refrigerator and be sure to mix it well to reincorporate the solids with the liquid.