Mark_M... played around last summer with a solar funnel cooker like the one designed at Brigham Young Univ....was really trying to make ice cream with exposure to the night sky...I built a solar water heater for Mom and Dad years ago... so probably could design one, but the one from SOS looks good... don't think I could make one without vacuum forming with a weight under 10#

there are some pretty detailed instruction on home pressure canning... I think that LDS are the "pros from Dover" as they've been at it for a long time.. I know I'm way behind the learning curve, so am just trying to look at some options