Regular screw on lids a pickle jar would be great for storing rice. Doesn’t have to be air tight
Super easy. Some people use a pressure cooker. I never have. I just use a very large pot.
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https://www.amazon.com/Ball-Mason-Jar-Regular-Jars/dp/B014V7RSE8
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Just google how to do it.
That glass looks like the this one from ikea, which has a stated volume of 12 ounces. That said, the product description for these mason jars say they're an inch shorter than the glasses, but still a pint.