One handle is broken on our large saucepan, so I made a rather crude wooden handle and glued it to the lugs. Only then did my son tell me that this is the saucepan that goes in the oven, for stews.
I stuck it in the oven at 150C for a few hours, and quite a bit of resin has oozed out of the wood, but the wood isn't burning.
I've just turned it up to 180C, and I'll keep an eye on it.
Any idea how hot it can go before it chars or bursts into flames? I'm told that sometimes stews go up to 200C.
Something I would expect the son to do, not the father!
Table 1 on this pdf suggests 200C is getting pretty close to ignition
I was just wondering what the other handle was made from. You might be OK provided the wood remains intact, and does not crack under the heat. Brian
I take it the stews in that pan are started on the hob and then transferred to the oven to simmer. 200C is way to high for that sort of stewing. Also, many handles have a lower tolerance of heat than the pan body - often 175C. So imv 200C for any significant time is far too severe a test.
Not sure if there?s any point in trying to ?stew? something in a closed lid pan at anything much over 100C.
As long as there?s water to boil off the temperature of the stew isn?t going to go much (if any) higher than that anyway. I?ve never ?stewed? anything at 200C.
Tim
So what was the original handle made of, (meltable) plastic?
Probably 140 °C is enough, unless you want to be sure that it heats up quickly, in which case you start it at 180 °C (preheated).
Generally it's better to use a vessel with small handles rather than a long handle like a saucepan if you are going to put it in the oven.
Asian hardware stores sell loads of these, but you have to be careful as some have plastic knobs and handles - presumably for cooking on the hob.
at 180 it'll gradually brown & char as does food.
Perhaps a heat-shrinkeable Silicone rubber sleeve over the glued assembly might help prevent the adhesive heating and meleting or cracking up. I used an metal_based epoxy (bought in an Autospares outlet) for a similar handle of a round metal pan and it withstood high heat of a gas fleme stove.
Thanks, all. At 150C, the wood secreted a lot of resin, but did not char significantly or smell too bad. At 180C it smelled pretty awful, so I stopped the test.
How about the holy spirit ?
Ignition temperature for cellulose based reading matter, according to Ray Bradbury and my 8 digit calculator, corresponds to a temperature of
232.77777 deg C. :-)
Wood contains resin which is much more flashpointy. That's removed in papermaking.
NT
I am afraid Ray Bradbury's title annoyed me in the same way so much of his work did. I dislike science fiction by people who obviously have no grasp of science or engineering. The title is a gross example of spurious precision, If the proposition that paper ignites in air at about 450degF is true at all, then it would be reasonable to expect in practice that it happened for a given book somewhere between +/- say
50degF of this figure.
Just make a steel handle, then you only need to worry if the oven starts to melt.
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LOL! :-)
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