I think that “bitterness” might be one of those genetic taste bud type things, kind of like some people dont know that cilantro tastes like lemon Pledge on an anus. When I eat stevia leaves there is a tiny taste maybe like a glass of weak tea. Some people just seem to get hysterical about the bitterness but I cant find it.
Stevia has a bitter after taste to me.
I don’t like cilantro and hot and spicy. It really restricts me when my friends want to go to a Mexican restaurant.
I have not eaten margarine for 50 years. These days I fry with olive oil with a bit of butter added for flavor. I find I use less than a stick of butter a month.
I remember my mother canning with a pressure cooker. We ate canned (bottled) corn and green beans, as well as more acid foods. She made jams and jellies put in small glass containers with a 1/4 inch of hot parafin poured on top. You have to be careful to fill the jar so NO fruit is on the area where the parafin needs to touch to seal properly.