Due to spoilage concerns grocery stores price food based on shelf stability not just production costs. Processed foods are generally shelf stable enough for this not to be a major concern.
Similarly economies of scale apply in many situations. Slow cooking beans takes more energy the smaller the batch size due to surface area to volume ratios etc.
Combined with the opportunity costs associated with cooking + cleanup means there’s very few healthy options that can compete with highly processed foods.
Oh, and I bought a banana for $.22.
Cooking a steak takes about 10 minutes.
Microwaving a TV dinner ($7.50) takes more time.
A medium potato is around 110 calories. 15 * 150 calories servings = 5$ that’s 20.45 medium potatoes for 5$ or 24.4c per medium potato. https://www.walmart.com/ip/Doritos-Nacho-Cheese-Tortilla-Sna...
The potato requires prep, 10 minutes in the microwave ~= 1/4 kWh, and presumably a little salt and butter. A microwave meal is a more complete nutrition source and takes less time, making them more complex point of comparison.
Prep: 5 seconds under the faucet, 10 seconds to quarter it
Cook: 3 min 40 sec in the microwave
TV Dinner: 10 min in the microwave, $7.69 price
https://www.bigbearswife.com/how-to-cook-a-potato-in-the-mic... How long does it take to cook a potato in the microwave? Between 5-10 minutes
https://microwaveshub.com/how-long-to-heat-up-a-potato-in-th... The cooking time to heat a potato in the microwave will largely depend on the size and type of potato. Here’s a general guideline: Medium Red 6-8 oz, 4-5 minutes large Russet 7-8
I’ve literally never seen a microwave meal take 10 minutes, but I’m guessing that’s theoretically possible if it’s got enough mass to heat up.
They do want you to let them cool, but that’s true of anything you heat to a cooking temperature in a microwave.
From experience a microwave meal should take about 3 minutes to cook so I don't know how you're taking more than 10 minutes unless, like your food item comparisons, you're cooking enough of them to feed an entire town.
1. Cut film to vent
2. cook 6 1/2 mins on high
3. Let stand 1 min
A frozen pot pie is 10.5 min.
I don't know any frozen dinners for 3 min.
As to let sit time, if you can instantly pop a potato or other food into your mouth after it comes out of the microwave you haven’t cooked it.
Processed food may not be cheaper, but the flavor:effort ratio is waaaaaay higher.
There's no universe where processed food is cheaper.
Our cheapest grass-fed tenderloin is $10 for a half pound cut. One. In a poor northern state.
We had that cow two years and didn't supplement grain. Cheap as you can grow them.
With a $5 steak, it might as well be corn chips.
You can have your corn chips. No thanks.
I have bad news for you about flour