r/sousvide • u/NotSure2505 • 12h ago
Sous Vide tip: Non-contact laser thermometer helped my son's searing step
My son has been learning sous-vide cooking. Searing indoors over a pre-heated cast iron pan, he'd get a great sear but lots of smoke billowing off of the pan.
So we decided to research oil smoke points (which are pretty reliable) and a thermometer to try to manage this. Beef tallow smokes at around 400F, relatively low. There are oils avocado can go to 510F+ before they break down. So using a higher heat oil will help (You'll still get some beef tallow rendering that could smoke.)
The goal was simple on paper, manage the pan's surface temp so that we stayed below the smoke point (around 500F) for as long as possible while still getting a good sear. And a little smoke is OK.
A no-contact thermometer ($8) was perfect for this, you could watch the pan temp go up and see where it was peaking.
First measured his normal method. Turns out he was getting the pan near 740F and that was causing instant smoke.
Medium-low preheating got us reliably around 500F starting temperature. Then drop in some AVO oil, get the steaks in, good sear, near zero smoke, but the pan would drop to around 400F as the steaks absorbed some of the energy.
Next we decided to try overshooting the starting temp a bit so cooking would take place in a range starting at 620F (little smoke) and we would end at around 450-500F (no smoke). This yielded the best results, golden brown, crispy crust, not burnt, and just a little smoke at the start of the sear.
Tl/dr: For indoor searing, starting pan temp of around 620F is the sweet spot for perfect crust and almost no smoke.