Baking – How to adjust oven temperature correctly

The typical sous vide temperature for most vegetables is right around 82-83 C, so I think you nailed it. Of course it is much more difficult to reach a consistent temperature in the oven than sous vide, but the texture at a given temperature should be roughly equivalent.

The very first thing to do is to put an oven thermometer in your oven and find out if your thermostat is accurate. It will take a little while to do this test, because the oven will first overheat then cool then overheat, etc. After 20-30 minutes, you should get a good reading as the interior heats up and the temperatures fluctuations subside. If your reading on the thermometer is different from the t-stat setting, then you will be able to compensate.If it won't hold a steady temp, you should replace the thermostat Sometimes you can recalibrate a home oven t-stat, but it might cost more than it's worth as long as you allow for the discrepancy.