Loose tea can be found either packaged in bags, boxes, etc., or completely loose.
Packaged tea should be in airtight packaging and protected from sunlight. Completely loose tea should be in well-sealed containers to protect it from moisture and not absorb odors from spices, coffee, etc. All types of tea and their qualities are not prepared in the same way or with the same water temperature. You should carefully choose your supplier, who should be knowledgeable enough to guide you correctly in both your choice and preparation instructions.
The substances in the tea you drink are contained in the dried leaves. These substances, released into hot water, are responsible for the tea's color, density, flavor, aroma, and properties. Therefore, the value you pay should correspond to the substances in the tea you buy.