There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry, agriculture, or laboratory experiments.
A ricer can be used to remove excess water from foods such as cooked greens that are to be added to quiche, and sliced or grated potatoes to improve the quality of potato chips or hash browns made from them. Potato ricers are used to make Mont Blanc, a dessert of chestnut puree. ricer can be used to remove excess water from foods such as cooked greens that are to be added to quiche, and sliced or grated potatoes to improve the quality of potato chips or hash browns made from them. Potato ricers are used to make Mont Blanc, a dessert of chestnut puree.
The benefit to using a potato ricer instead of mashing the potatoes by hand is that the potato ricer achieves a uniformly smooth consistency with no lumps. And an electric mixer or food processor can overwork the starches, producing a gluey product. potato ricer (here's one) is shaped like a cup or cylinder with small rice-sized perforations at one end and some sort of handle or press for forcing the food through the perforations.