If you are canning food you have to kill them all. Get Ball's Blue Book and follow directions exactly. smile.amazon.com/s/ref=nb_sb_ss_i_1_16?url=search-alias%3Dstripbooks&field-keywords=ball+blue+book+of+canning+and+preserving
In advertisements, it's always 99.99%. And I believe you cannot actually kill it 100% there will always be a little percentage that is not detectable. But cooking will surely eradicate bad bacteria.
