Liquid tempering

[Lt.Col.Vortex]

Actually, the "candy thermometer" phrase is what threw me off. "Deep fryer" is what you linked me to, and those I did find. But I picked me up a Taylor Precision 5932 Classic Oven Thermometer, which goes up to a 600F max instead of 500F.

I am still going to set my blades to help with the temperature balance. I dont trust this oven entirely.


BTW, first link is only a 220F max.

 

[Rick Marchand]

Actually, the "candy thermometer" phrase is what threw me off. "Deep fryer" is what you linked me to, and those I did find. But I picked me up a Taylor Precision 5932 Classic Oven Thermometer, which goes up to a 600F max instead of 500F.

I am still going to set my blades to help with the temperature balance. I dont trust this oven entirely.


BTW, first link is only a 220F max.

Weird... the first one I linked to is listed as 50-500F range and I found it by the picture which I swear went to 500F. I would not have clicked on it to find the link if it had gone to 220F. ETA: the text in the pic says that the "photo may not represent selected temperature range".

Both of those were labeled as Deep Fryer/Candy thermometers. I found them by doing an image search on Google under "candy thermometer" and looking for the ones that went above 450F.:thumbup:

 

[Lt.Col.Vortex]

Since we're talking about temperatures, what is the max safe temperature variance for 1095? I know I'm, suppose to keep it at 425, but at what point does varying temperature start to become a problem?

Yes I know the answer is somewhere in another thread, but please humor me.

ETA: the text in the pic says that the "photo may not represent selected temperature range".

yep, saw that afterwards. Those people need to keep their products and pictures up to date

 

[Rick Marchand]

Since we're talking about temperatures, what is the max safe temperature variance for 1095? I know I'm, suppose to keep it at 425, but at what point does varying temperature start to become a problem?

Not sure what you mean by "varying"... is that the same as fluctuating?

Time and temperature both play a part but not always equally. If your tempering oven is fluctuating from 415F to 445F during the whole cycle, I would treat it as if you tempered at 445F (as that was the highest temperature reached). If the fluctuation only occurred when you first put the blade in and the oven tried to stabilize, then I wouldn't worry too much because the blade most likely hadn't hit peak temp until a few minutes had passed. As for the 425F temp being the goal, I personally temper 1095 at 475F and sometimes even 500F. But I am confident that I am hitting 65/66HRC in the quench.