u/Freer4

I'm exploring canning some of my chili sauce for later use. It's fully and very well cooked for hours, I'm not canning it raw. It's mostly tomato sauce with some ground beef and other ingredients. I'm looking to get a PH meter just to be sure of the acidity of the entire chili once cooked.

Assuming it's high-acidity, is a regular water bath good enough? Or does the presence of meat, even if cooked and even if the chili is high-acidity, mandate the use of a pressure canner?

I have a 14-50 (4 prong 50 amp) plug wired to a panel on a food truck.

I have a L14-30 receptacle (4 prong 30 amp) on my generator.

Assuming I'm not pulling more than 30A of 240V off the panel anyhow, is there any reason I can't swap out the 14-50 plug for a L14-30 plug on that same cord? It just means I have a 50A extension cord being underutilized and everything else should be fine, the breaker on the generator would trip if I tried to pull more than 30A on that L14-30 anyhow, right?

I think this is fine but I'm not an electrician.

My very limited understanding is that "normal" 120V is a single phase (one hot) and 240V is two phase (two hots), 2x 120V hots. Seems to track. 240V two phase outlet has 4 prongs (2 hots, neutral, ground) where the two hots lead back to a double-pole breaker at the panel that connects to both panel phases.

How does a 240V single phase play into this? I recently acquired a 240V single-phase appliance, that's 3 prongs, only one hot. I don't think I can get 240V out of a single 120V phase, and I don't think I can connect one wire to both phases at the panel.

I have a food truck with a 14-50P and a generator with an L14-30R. There are adapters for these. My understanding is that this connection will be find, I just won't be able to draw more than than 30 A from the generator.

The gen itself is rated for more 7000W, but I'm trying to determine how much equipment I can hypothetically run with this wiring.

The outlets are all 120V (or 110V? either way I think the math is roughly the same) run off a panel on the truck fed from that connection. So I can draw 30A at 240V through the plug to the generator, which means 60A of 120V power is actually available for the appliances?

Is it safe to just say I have up to 7200W (based on 30A 240V from generator) I can use on the truck, or does splitting the load up into 120V outlets affect this somehow?

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My novice electrical understanding makes me think that it actually depends entirely on how the outlets are connected to the panel. 240V has 2 hots, and if all the outlets were connected to one of those hots, I'd be capped at 3600W. Basically, I'll have to be aware of which outlets are attached to which hot from the generator and balance my appliance draw accordingly.