You can grow sprouts in a wide variety of ways. You can use a jar, tray, or any other container. You can also use a hydroponic method, where you use a solution of water and nutrients to feed the sprouts. However, the more water and air you give the sprouts, the faster they will grow and the longer they can remain in the jar.
Potato sprouts can be planted in small pots, in a tray, or in a shallow box. They need plenty of light, so they can be grown outside under a tent or greenhouse, or in a sunny window.