The above is non-toxic stainless steel, or standard credit grade stainless steel.The easiest way to distinguish is: with a magnet at the bottom, the suction is 430, suction or weak magnetic 304.But 304 pot most of the outer layer of the pot has a 420 magnetic conductive layer, is magnetic, so the magnet detection is not accurate, the spoon back and forth end, sometimes will hold, because of the magnetic polishing produced.So the most accurate way is to suck the bottom, the most accurate detection or use N8 stainless steel potion

The above is non-toxic stainless steel, or standard credit grade stainless steel.The easiest way to distinguish is: with a magnet at the bottom, the suction is 430, suction or weak magnetic 304.But 304 pot most of the outer layer of the pot has a 420 magnetic conductive layer, is magnetic, so the magnet detection is not accurate, the spoon back and forth end, sometimes will hold, because of the magnetic polishing produced.So the most accurate way is to suck the bottom, the most accurate detection or use N8 stainless steel potion

The above is non-toxic stainless steel, or standard credit grade stainless steel.The easiest way to distinguish is: with a magnet at the bottom, the suction is 430, suction or weak magnetic 304.But 304 pot most of the outer layer of the pot has a 420 magnetic conductive layer, is magnetic, so the magnet detection is not accurate, the spoon back and forth end, sometimes will hold, because of the magnetic polishing produced.So the most accurate way is to suck the bottom, the most accurate detection or use N8 stainless steel potion

The above is non-toxic stainless steel, or standard credit grade stainless steel.The easiest way to distinguish is: with a magnet at the bottom, the suction is 430, suction or weak magnetic 304.But 304 pot most of the outer layer of the pot has a 420 magnetic conductive layer, is magnetic, so the magnet detection is not accurate, the spoon back and forth end, sometimes will hold, because of the magnetic polishing produced.So the most accurate way is to suck the bottom, the most accurate detection or use N8 stainless steel potion

The above is non-toxic stainless steel, or standard credit grade stainless steel.The easiest way to distinguish is: with a magnet at the bottom, the suction is 430, suction or weak magnetic 304.But 304 pot most of the outer layer of the pot has a 420 magnetic conductive layer, is magnetic, so the magnet detection is not accurate, the spoon back and forth end, sometimes will hold, because of the magnetic polishing produced.So the most accurate way is to suck the bottom, the most accurate detection or use N8 stainless steel potion

The above is non-toxic stainless steel, or standard credit grade stainless steel.The easiest way to distinguish is: with a magnet at the bottom, the suction is 430, suction or weak magnetic 304.But 304 pot most of the outer layer of the pot has a 420 magnetic conductive layer, is magnetic, so the magnet detection is not accurate, the spoon back and forth end, sometimes will hold, because of the magnetic polishing produced.So the most accurate way is to suck the bottom, the most accurate detection or use N8 stainless steel potion

The above is non-toxic stainless steel, or standard credit grade stainless steel.The easiest way to distinguish is: with a magnet at the bottom, the suction is 430, suction or weak magnetic 304.But 304 pot most of the outer layer of the pot has a 420 magnetic conductive layer, is magnetic, so the magnet detection is not accurate, the spoon back and forth end, sometimes will hold, because of the magnetic polishing produced.So the most accurate way is to suck the bottom, the most accurate detection or use N8 stainless steel potion