Maltodextrin is a non-fermentable sugar used to enhance body, mouthfeel, and head retention. These changes can affect the perceived taste of beer, but maltodextrin itself does not contribute any significant sweetness. Typical usage is between 0.8-1.6 oz per gallon.
Home brewing is a hobby that anyone can pick up and master in a short time. You need a little time, a little patience and a whole lot of pleasure. Most people start with a home brewing kit, these kits contain everything that you need for your first batch. These home brewing kits are a great way to learn and gain some experience and you end up with excellent quality beer.