Inferior, then you have to see how inferior it is, is it inferior or deteriorated? If only the quality is inferior, the effect is still there. If it goes bad, the effect is hard to say, which will definitely make you uncomfortable and cause adverse reactions to your body.

However, Pu 'er tea tastes just like that. People who don't like it very much taste musty. I don't know if this taste is normal or abnormal.