High quality Goji berries (Lycium fruit, also known as Gou Qi Zi) should have a bright red color, plump and slightly chewy texture. They should have a sweet and slightly sour taste, without any signs of mold or insect damage. They should be consistent in size and shape and should be fresh, without any musty or chemical odors. They should not have any pesticides or other chemical residues.
The aroma of Goji berries should be slightly sweet and fruity, with no off-putting or musty smell. They should not have any chemical or artificial scents.
It is important to note that Goji berries that have been dried and packaged may not have the same texture and taste as fresh Goji berries, but they should will have a bright red color and a fresh aroma.