Culture of Tunisia are boiled in the lower half. The top half has holes in the bottom through which the steam rises to cook the grain which is put in this part. Cooked this way the grain acquires the flavour of whatever is below. The usual grain is semolina. To serve, the grain is piled in the middle of a dish, and the meat and vegetables put on top. A sauce can be then poured over before serving. Like in the rest of North Africa, couscous is served on all occasions. It is traditionally eaten with lamb, the semolina must be very fine,
Semolina terms for wheat, "samita" and "godhuma", or may be loan words from the Semitic root "smd" – to grind into groats ("cf." ""). Modern milling of wheat into flour is a process that employs grooved steel rollers. The rollers are adjusted so that the space between them is slightly narrower than the width of the wheat kernels. As the wheat is fed into the mill, the rollers flake off the bran and germ while the starch (or endosperm) is cracked into coarse pieces in the process. Through sifting, these endosperm particles, the semolina, are separated from the bran. The semolina