Does bringing meat to room temperature before cooking actually help?
Much less than the advice implies, and the usual justification for it does not survive scrutiny.
The claim is that a steak taken straight from the fridge cooks unevenly — overdone outside, cold centre — and that resting it on the counter for 30 to 60 minutes fixes this.
The problem is thermodynamics. Meat is a poor conductor of heat, and it warms from the outside in very slowly at room temperature. Kitchen testing repeatedly finds that a thick steak left out for an hour rises only a few degrees at the centre — often from around 4°C to perhaps 8 or 10°C, when the target internal temperature is 50°C or more. That handful of degrees is a small fraction of the total temperature change cooking must achieve, so its effect on the final result is minor.
There is also a food safety consideration. Guidance in most countries discourages leaving raw meat at ambient temperature for extended periods, since the range roughly between 5°C and 60°C is where bacteria multiply fastest. An hour is generally low risk for a whole intact cut, where bacteria are on the surface and will be seared; it is a genuinely worse idea for minced meat, poultry and anything where bacteria are distributed through the product.
What actually produces an evenly cooked steak:
A dry surface. Patting the meat dry does far more for a good crust than temperature does, because surface moisture must evaporate before browning starts.
A properly hot pan and not overcrowding it.
A thermometer, which removes guesswork entirely.
The reverse sear — low oven or sous vide first, then a hard sear — genuinely solves the even-cooking problem, unlike counter resting.
Resting after cooking is a different thing and does have a real effect.