For the ingredients that would make a 5 galloon of beer, we will need one can of malt extract (pre-hopped), one kilo of fine sugar (preferable the one that is known as dextrose or corn sugar), one sachet of yeast and water (tap water will do but if it doesn't taste good you may opt for filtered water). This can be added or built into the cabinet or the counter. Stand alone units. This is best selected if the intent is to place the system anywhere inside the house. Outdoor units. Since these systems are placed outdoors, expect these units to be durable. The construction can be made from stainless steel so that these are protected from the moisture. So what needs to be done in order to address a concern like this? The best thing to do is to ensure the cleanliness of equipments every time. All the equipments used in home brewing should be sanitized. But it doesn't mean that you have to invest in pricey sanitizing products. You can cut cost when cleaning if you can dilute an ounce of Clorox in a gallon of water and use this mixture as the cleaning agent for brewing equipments. Now this is a good initiative on your part; home brewing is one perfect hobby that you can take up. You can make your own brew to rival the commercial ones and more importantly you can earn a few bucks from your brews- if you happen to master the art of home brewing. Now in order to be successful in this kind of hobby, you must first be aware of the basics of home brewing. You may have read online that the number of home brewers and the hobbyist taking home brewing is growing. This should not come as a surprise to you. Home brewing is indeed growing in popularity, and as long as there are men who loves to drink beer it's best to assume that brewing at home will maintain its popularity. However, the beer that we purchase from the store can take its toll on our wallets. The heavy tax imposed on our favorite beverage doesn't make it easier for us either. But if you want to cut costs without compromising the amount of beer you want to enjoy every weekend, then maybe you might want to try brewing your own beer at home.