Jalapeno peppers often have beige lines running down from the stem. This does not affect their flavor. Refrigerate jalapenos in a paper bag for up to 10 days.
To avoid being burned, care must be taken when handling chili peppers. (Soap will not remove the burn.) Always wear rubber gloves when working with the hot peppers, and keep hands away from eyes and nose. Slice stem off the chili and cut in half lengthwise. Carefully remove seeds and ribs (for milder flavor). and discard. Two peppers from the same plant can have different heat intensity. Test each pepper. Drink milk, not water, or eat starchy foods of the heat is too intense.