The fermentation process takes vegetables and turns them into probiotic powerhouses packed full of healthy microorganisms and enzymes. If you're looking to add probiotic bacteria to your diet, learning to ferment vegetables is a cheap and easy way to do it. A number of common problems encountered during fermenting are covered at the end of the book, including mold, slime, cloudy substances at the top of the brine and vegetables that smell rotten, taste funny or go soft.