Hi NJ,
I can't remember the exact details on rice but I know that my method derives from the info I sought at the time. I think you have a 20 minute window to get it cooled down (below 5c), then freeze it. As long as you get it past 80c when you reheat it, it seems to be safe!
I've been doing it for years, and I'm pretty sure the TA's and BIR's do something similar, and I've never suffered from an upset tummy.
With regards to the camping stove, I did a BBQ at a friends house last summer, and I used one if these stoves with a wok to cook up a curry sauce. It was excellent, plenty of heat output for what you need. Using it indoors would be even better I guess.
All the best,
Ray
