(no subject)
Feb. 6th, 2024 08:12 am
Well, I finished the first crack at the pressure cooker and things went fine. I am now the proud owner of five pint jars of beans and bacon. They all sealed up just fine and I will have them for my lunch and report back tomorrow.
Due to my utter nerdishness and lack of anything else to do, I went looking into the power draw for doing this kind of thing. It was part and parcel of the costing out of the different parts of the process. Folks talk about the savings and how cheap you can eat if you can yourself and eat low on the food chain. I think that his is true, but usually this kind of thing is expected to be taken on faith as an absolute truism.
I don't take anything on faith.
Part and parcel of my obsessive compulsion today is documenting research into the power draw of the electric range that I use. How the deal went yesterday is that I had three of the burners running in order to process the five jars of beans.
1.) small burner, 1400 watts, on high for 20 minutes to scald mason jars
2.) small burner, 1400 watts, on high for 20 minutes to scald lids.
3.) large burner, 2200 watts, on high for 20 minutes to bring pressure cooker water (3 Quarts) to temperature.
4.) large burner, 2200 watts, on high for 20 minutes to bring pressure cooker to 11 lbs pressure.
5.) Large burner, 2200 watts, set between low and medium low for 75 minutes to maintain 11 lbs pressure.
Now, I went and asked the folks at whirlpool (stove manufacturer) about the power draw for the electric range. They shipped me here to let me understand how the controls on your electric range work.
https://techcircuit.org/how-an-infinite-switch-works/
This works out to:
1.) 1400 x 0.33 = 462 watt/hours or 0.462 KWh
2.) 1400 x 0.33 = 462 watts/hours or 0.462 KWh
3.) 2200 x 0.33 = 726 watts/hours or 0.726 KWh
4.) 2200 x 0.33 = 726 watts/hours or 0.726 KWh
5.) 2200 x 0.35 x 1.25 = 962 watts/hours or 0.926 KWh**
So, adding everything together, I come up with 3.3 KWh used in canning these five jars of beans. My current cost for electricity is around $0.19 per KWh, so it cost me around $0.62 for the batch which works out to $0.13 per jar of beans.
**Concerning #5, I am using 35% as a power draw estimate using the link above as a reference