Originally Posted by samc
Stainless is not a good idea with induction unless it has an encapsulated bottom with other metals that are magnetic. I'd think Blichmann pots would be a fail with induction.
Sam, you are 100% correct.
Originally Posted by digg1es
To work properly with an induction burner the pot material needs to be magnetic, ie: any form of steel or iron. Blichmann kettles should work great. A kettle with a stainless/aluminum bottom would work great as well.
I've never used one myself, but I would imagine that it would work fairly well, as there is no energy waste as the heat is generated by the pot itself.
If you have not tried it, you should not recommend it, because you are wrong. Blichmann Kettles are made of 304 Stainless Steel. Essentially, the addition of nickel to the stainless steel compound helps to strengthen the protective qualities of the chromium. Generally referred to as a 300 series, stainless steel that contains nickel is not magnetic at all. The reason is that the presence of the nickel alters the physical structure of the stainless steel and removes or inhibits any magnetic qualities.
However, magnetic stainless steel does exist. The 400 series, which contains steel and chromium, but without the presence of nickel, does in fact exhibit magnetic qualities. While the degree of magnetic attraction may vary, it is not unusual for items made with the 400 series stainless steel to provide enough attraction to interact with magnets, and in some cases to allow small metal items to adhere to the stainless steel surface.