Feta is a soft brined white cheese with small or no holes, a compact touch, few cuts, and no skin. It is usually formed into large blocks, which are submerged in brine. Its flavor is tangy and salty, ranging from mild to sharp. Its maximum moisture is 56%, its minimum fat content in dry matter is 43%, and its pH usually ranges from 4.4 to 4.6. Feta is traditionally categorized into firm and soft varieties. The firm variety is tangier and considered higher in quality. Traditionally (and legally within the EU), feta is produced using only whole sheep's milk, or a blend of sheep's and goat's milk (with a maximum of 30% goat's milk). The milk may be pasteurized or not, but most producers now use pasteurized milk.