I have only done water bath canning. I have never done pressure canning. Last year we got tomato blight in this area so I got nothing all my beautiful tomatoes caught the blight. I was so angry because they traced the blight to tomato plants bought at big box stores but it is a fungus that spreads on the wind. So even though I bought all my plants from a local greenhouse that starts all their own from seed I still caught it from neighbors who bought theirs at big box grrrrr! This year my back didn't allow me to put in a garden but I may just buy my tomatoes at the farm market and put them up. I have also done jams, salsa (both red and green), corn relish and sweet hot pickle relish. I too did not know you could not pressure can on a glass stove top. I have one and have had no trouble with my big water bath canner.