Hello everyone! I just finished constructing an electric heat treat oven so that I can heat treat ovens at my new house without worrying about scaring neighbors with large propane burners and forgers. Now that I have this equipment, I’ve been considering getting into stainless steel for kitchen knives and that kind of thing. My oven is perfectly capable of getting up to the temperatures required for stainless but I’m concerned about doing cryo treatments at home. I’m not thrilled about the thought of paying a bunch of money for a dewar and then constantly filling it with liquid nitrogen just to do cryo treatments. Are these treatments REALLY necessary to achieve an acceptable hardness on stainless knives? I find it hard to believe that after soaking at temperatures above 1900F and then plate quenching with compressed air followed by a standard temper cycle that the steel wouldn’t be at an “acceptable” hardness. Then again, I’m not a metallurgist. Thanks!