In the Early Middle Ages beer was brewed primarily in monasteries, and on a smaller scale, in individual households. By the High Middle Ages breweries in the fledgling medieval towns of northern Germany began to take over production. Though most of the breweries were small family businesses that employed at most eight to ten people, regular production allowed for investment in better equipment and increased experimentation with new recipes and brewing techniques. These operations later spread to the Netherlands in the 14th century, then to Flanders and Brabant, and reached England by the 15th century. Hopped beer became very popular in the last decades of the Late Middle Ages. In England and the Low Countries, the per capita annual consumption was around , and it was consumed with practically every meal: low alcohol-content beers for breakfast, and stronger ones later in the day. When perfected as an ingredient, hops could make beer keep for six months or more, and facilitated extensive exports. In Late Medieval England, the word beer came to mean a hopped beverage, whereas ale had to be unhopped. In turn, ale or beer was classified as "strong" or "small", the latter less intoxicating, regarded as a drink of temperate people, and suitable for consumption by children. As late as 1693, John Locke stated that the only drink he considered suitable for children of all ages was small beer, while criticizing the apparently common practice among Englishmen of the time to give their children wine and strong alcohol.