At the end of eight years, more or less, according to how the quality of soil and the situation have influenced the development, there would remain, say, about 2,400 plants in each caban of land, or 1,728 plants per acre. Comparing this with the yield per acre, each tree would therefore give 9.33 ounces of marketable coffee, whilst in Peru, where the coffee-tree is planted at an elevation of 5,000 to 6,000 feet above sea-level, each tree is said to yield one pound weight of beans.
In the Philippines the fresh ripe berries, when thoroughly sun-dried, lose an average weight of 52 per cent. moisture.
The sun-dried berries ready for pounding (husking) give an average of 33.70 of their weight in marketable coffee-beans.
It takes eight cabanes measure (vide p. [276]) of fresh-picked ripe berries to turn out one picul weight of clean beans.
Owing to the fact that one year in every five gives a short crop, due either to the nature of the plant or to climatic variations, it pays better to collect coffee from the very small growers rather than sink capital in large estates on the aparcero system (q.v.).
The coffee-plant imperatively requires shade and moisture, and over-pruning is prejudicial. If allowed to run to its natural height it would grow up to 15 to 25 feet high, but it is usually kept at 7 to 10 feet. The leaves are evergreen, very shining, oblong, leathery, and much resemble those of the common laurel. The flowers are small, and cluster in the axils of the leaves. They are somewhat similar to the Spanish jasmine, and being snow-white, the effect of a coffee plantation in bloom is delightful, whilst the odour is fragrant. The fruit, when ripe, is of a dark scarlet colour, and the ordinary coffee-berry contains two semi-elliptic seeds of a horny or cartilaginous nature glued together and enveloped in a coriaceous membrane; when this is removed each seed is found covered with a silver-grey pellicle.
The Caracolillo coffee-berry contains only one seed, with a furrow in the direction of the long axis, which gives it the appearance of being a geminous seed with an inclination to open out on one side.
In Arabia Felix, where coffee was first planted in the 15th century, and its cultivation is still extensive, the collection of the fruit is effected by spreading cloths under the trees, from which, on being violently shaken, the ripe berries fall, and are then placed upon mats to dry, after which the beans are pressed under a heavy roller.
In the Philippines, women and children—sometimes men—go into the plantations with baskets and pick the berries. The fruit is then heaped, and, in a few days, washed, so that a great portion of the pulp is got rid of. Then the berries are dried and pounded in a mortar to separate the inner membrane and pellicle; these are winnowed from the clean bean, which constitutes the coffee of commerce and is sent in bags to Manila for sale.
The Philippine plantations give only one crop yearly, whilst in the West Indies beans of unequal ripeness are to be found during eight months of the twelve, and in Brazil there are three annual gatherings.