When selecting pig lungs,choose ones with a pinkish, smooth, uniform surface that is elastic.Deteriorated pig lungs appear brown-green or gray-white and have an unpleasant smell; they should not be consumed.If the lungs show swelling, gas accumulation, nodules, or pus-like masses, they are also unsuitable for consumption.A proper method involves: one look – fresh and high-quality pig lungs appear full, with a uniform pinkish color, both lobes of the lung are equally large, without damage or black spots or red patches;

two touch – good quality pig lungs have elasticity when touched, feel smooth to the hand, do not stick, and feel relatively light in your hand.Gently Touch —— Good pig lungs should feel elastic to the touch, have a good texture, not stick to your hand, and feel relatively light when lifted.