There is a kind of walnut with paper skin, the skin is mostly black and thin, and it is easy to crush with two in your hand. The peach kernel is full and the taste is not too hemp. This is of course very good! The market price is often 25-30 yuan a catty.
And some black walnuts, the seller pretends to be paper-skinned walnuts, in fact, the outer skin of walnuts is not cleaned, or it is specially dyed with the juice of the outer skin, so when buying, you must take two pieces and crush them on the spot, and look at the peach kernels and taste them!
Let's see what others say.