1. touch sense

Fine quality pearl powder:the thinner pearl powder the better quality,of course,the more expensive.Bad quality pearl powder:its granule should be thick,and some of them ever like grit.

Assessing method:kneading on hand back,abandon if feel thick.

2. orally sense

Pure pearl powder:no peculiar smell, tasting mellow and deep,there is special light fishy flavor and fragrance within the aftertaste.

Bad quality pearl powder:acid,pungent or other peculiar flavor,or none flavor at all.If taste burnt,as well as a yellow color,it could be remnant pearl powder. The heating lead to a yellow color that generated by high speed running of steel pin.Longtime imbibing this kind of pearl powder would cause accumulative heavy-metal poisoning

Assessing method:tasting little amount pearl powder with tongue

3. Appearance

Bad quality pearl powder:obviously whiter than pure pearl powder. Sticking little powder on finger,then outspread under sunlight or lamplight and examining carefully.It might be detected obviously shinnying.It is isinglass powder.The quality is not pure if the pearl powder appearance obviously yellow or dark.

4. choose of thin degreed

Fine pearl powder:thin powder,easy to be imbibed,weak self-fluidity

Examining method: most pearl powder on market is bag packing.Nip the bag when you buy the pearl powder.If the powder spread rapidly (flowing), leaving far away from the presses,even it is pearl powder,it is quite thick pearl powder.

Summing-up

Simulated pearl powder

Qualification:Sticking little powder on finger,outspread under sunlight or lamplight and examining carefully.It might be detected obviously shinnying.It is isinglass powder.

Color and lustre:It is obviously whiter then pure pearl powder.This kind of simulated pearl powder is mix with animal albumen powder.It would stick inside stomach if taken in longtime.

Fine pure pearl powder:

Qualification:powder lustre is whiteness and equality,non-impurity.

Touch sense:sense is tender and smoothness,easy to absorb on skin.

Flavor:slight fishy smell,without any peculiar smell

bad quality pearl powder

Qualification:the material of this kind of pearl powder is the remnant powder that boring from pearl jewelry.

Lustre:slight yellow,it cause by high heating that generate from machine boring.