[Illustration: Fig. 121.] One great point in cheese-making is to have a sufficient quantity of good rennet in store; for the older it grows the more powerful and effective it becomes, and the experienced cheese-makers, studying their own interests, know very well how difficult, hurtful, and time-wasting, it is to use fresh or new rennet. The assertion sometimes made that they use muriatic acid instead of rennet for curding the milk in Holland rests on an error, at least so far as the present methods are concerned. In earlier times, and for the poorest kinds, as the Jews’ cheese, muriatic acid was more or less used. At the present time, the rennet for those cheeses is prepared from the stomachs of calves some days old. When the curd has sufficiently come, and has all been thoroughly broken, the dairy-woman puts a four-cornered linen cloth, called the cheese-cloth, which is used only for this purpose, and is only loosely woven, upon a small strong ladder laid over the edges of a low tub, and puts upon the cloth the proper quantity of curd, then ties up the four corners of the cloth, and presses with her whole strength, that the milk may drain off. This work is also done by men who can apply great strength, Fig. 121. The corners of the cheese-cloth are brought together, and the operator presses as hard as he can, in order to remove all the milk from the curd. But, as this is not possible with the hands alone, the whole is placed under a plank-press, and by this means as much of the milk as possible is pressed out. A strong cleat is nailed to a pillar in the wall at a convenient height from the floor,--say two feet,--so that the tub, ladder, and cheese-cloth, can be put under the plank, when the plank is pressed down upon the cloth and curd. At the other end of the plank the operator sits and presses down with the whole weight of his body, as seen in Fig. 122. The whey runs into the tub, and is generally used as food for swine. The pressure is continued till no more runs off. [Illustration: Fig. 122.] After the complete removal of the whey, the curd remaining in the cloth has the form of the palms of the hands, and is pressed so firmly that it holds together when the cloth is removed. But it is again broken up, and put for this purpose into the breaking-tub, a low but broad, open tub, with wooden hoops, and made of strong staves, and is here worked over by the bare but cleanly-washed feet of the dairyman, or hired man. This working with the feet is continued, just as in kneading dough, till all is brought to a stiff paste. [Illustration: Fig. 123.] [Illustration: Fig. 124.]