Food Finds about Pineapples Pineapple skin, core, and ends are used in the making of alcohol, vinegar, and animal feed. Each pineapple plant produces just one pineapple per year! Unripened pineapples taste terrible and are poisonous to humans, causing irritation of the throat and having a powerful laxative effect. Pineapples can take up to two years to reach their full size (20lbs), so generally people pick and eat them before they are done maturing. Standing a pineapple upside down (leaf on bottom) will cause it to ripen much faster. Pineapple juice is a┬ádiuretic, and it has also been used to induce labor. The Bromelain enzyme in pineapples breaks down proteins. This means that you can use pineapple or pineapple juice as a meat tenderiser.…