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Roll Name for the Retirement Class of 2025!

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September 3, 2024
engineer101 wrote: Mon Jul 08, 2024 12:15 pm
I am planning to retire someday in Q1 2025, though precise date is TBD. Age 58.

Welcome to the Retirement Roll Name engineer101! You are on this Marvelous Class of 2025

engineer101 wrote:After 35+ years of engineering, I am prepared for one thing else! Time to atone for years of books not learn and flicks not watched, plus some sleeping in, residence cooking, biking, touring, and so forth. And I’ll spend a while between now and the large day doing extra particular planning.

Sounds nice! There’s nothing like an engineer for detailed planning. We want you all the most effective in planning and having fun with a protracted fantastic retirement stuffed with thrilling new adventures.

And since you’ve got “cooking” in your checklist of vital issues to do when you punch out of the rat race, learn this discussion board thread “Beef Roast” the place a number of Boglehead engineers tried to cook dinner roast beef – full with graph paper, coloured pencils & pens, spreadsheets, cease watches, a wide range of meat thermometers and several other cookbooks with detailed instructions, all arrayed out on their kitchen counters, making an attempt to cook dinner the right beef roast as scientifically completely as potential in response to exact plans :D

Notice – these are precise quotes, nobody may probably make this up :mrgreen:

All tools examined with engineering precision for all techniques go –

Will verify the exterior show thermometer and internal-read thermometer in heat water someday to see if I nonetheless see the 3-5 diploma distinction.

Checked immediately, they usually have been spot on (similar temp studying on every) from about 90 deg F to about 125 deg F. Then checked in my tea, and at first the instant-read displayed about 5 levels larger (say 145 vs. 140), however then I seen that that displayed temp on the instant-read thermometer modified after I moved it barely, and it was inside 1 or 2 levels after I put the information of the thermometers proper subsequent to one another.

So I am pleased with my thermometers.

So, now your thermometers are cross-calibrated, do you’ve got a ample provide of graph paper?

After all I am doing a spreadsheet to plan our cooking/baking, and I exploit the common of min and max instances to plan.
Additionally, I’ve additionally learn that temp rises much less whereas resting if cooked at low temp, which is sensible. My notes for recipe I believe I used final time point out with 325 temp to take away at 128-130 for goal temp of 135, and I am fairly positive that is what I did, and it labored nice. Most typical advice appears to be to take away at 125 for goal temp of 130, however particularly with decrease temp (say 200-250), I am leaning towards eradicating at 128-130.

Subsequent time, strive cooking it on the lowest temp. your oven will do. Mine is 170F. With decrease temperatures you’re going to get much less overshoot. Additionally, I’m an engineer. I’ve a chunk of graph paper on the counter prime the place I plot temp. vs. time as we’re going alongside. That makes it straightforward to extrapolate the time when the roast will probably be finished.

So for the primary 40 minutes or so, temp elevated by solely about 0.2 levels/minute, then 0.5 deg/minute over subsequent hour, then 0.65 deg/minute for subsequent 40 minutes, then 0.61 deg/minute for 20 minutes, then about 0.5 deg/minute for the final 20 minutes earlier than eradicating from oven. Temp continued rising at 0.5 deg/min for first couple of minutes, then 0.4 deg/min for about quarter-hour, then continued to sluggish from there.

Additionally an engineer by coaching, and did similar, however entered instances and temps into my spreadsheet as I went. Used a components to extrapolate temp, however after all the curve shouldn’t be linear, so predictions get higher after the primary hour or so. Right here is the plot proven earlier with calculated temps added:

Image

We are able to see that on the 42 minute mark, the prediction for the 102 minute mark was means low (19 levels), as a result of sluggish warmth enhance fee throughout first 40 minutes. The prediction at 102 minutes for 142 minutes was 7 levels low, however after that every one predictions have been +/- 2 levels from precise. By 142 minutes I may see that the oven would attain goal temp of 125 earlier than goal time, since I had guessed 20-Half-hour per lb, and used the common of 25 minutes for planning (whereas precise turned out to be 23.25, and naturally I ought to have taken it out even sooner, so about 20-21 minutes per lb–at low finish of my guesstimated vary).

:D

As I’ve stated earlier than, I will admit, engineers make me really feel insufficient – all I do is combine a Lipton’s Onion Soup packet with ketchup and pour it over a big roast, put it within the oven, coated, for 3 hours, 350 levels, and it is finished :mrgreen:

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