Maltose/ˈmɔːltəʊz/ Definition 1 of 1Pro Tip 1/3Brewing Context Maltose is key in beer making, as it's the sugar yeast ferments to produce alcohol. In the brewery, the yeast transformed the maltose into alcohol. Pro Tip 2/3Not Table Sugar Maltose is different from common table sugar, which is sucrose, not maltose. Make sure to buy maltose, not sucrose, for your home brewing. Pro Tip 3/3Sweetness Level Maltose is less sweet than table sugar, contributing subtle sweetness in foods. Maltose gives this bread a gentle sweetness that enhances its flavor.