Sprouts can be germinated at home or produced industrially. A downside to consuming raw sprouts is that the process of germinating seeds can also be conducive to harmful bacterial growth. All viable seeds can the sprouting book pdf sprouted, but some sprouts should not be eaten raw.
Whole oats may have an indigestible hull which makes them difficult or even unfit for human consumption. In the case of rice, the husk of the paddy is removed before sprouting. With all seeds, care should be taken that they are intended for sprouting or human consumption rather than sowing. Seeds intended for sowing may be treated with chemical dressings.
Several countries, such as New Zealand, also require that some varieties of imported edible seed be heat-treated, thus making them impossible to sprout. The germination process takes a few days and can be done at home manually, as a semi-automated process, or industrially on a large scale for commercial use. Then they are soaked for 20 minutes to 12 hours, depending on the type and size of seed. Many different types of vessels can be used. One type is a simple glass jar with a piece of cloth or nylon window screen secured over its rim.
Tiered” clear plastic sprouters are commercially available, allowing a number of “crops” to be grown simultaneously. By staggering sowings, a constant supply of young sprouts can be ensured. Any vessel used for sprouting must allow water to drain from it, because sprouts that sit in water will rot quickly. The seeds swell, may stick to the sides of the jar, and begin germinating within a day or two. It’s a one-way watering system with micro sprinklers providing intermittent pulses of fresh water to reduce the risk of bacterial cross-contamination with Salmonella and E. Sprouts are rinsed two to four times a day, depending on the climate and the type of seed, to provide them with moisture and prevent them from souring.
Each seed has its own ideal sprouting time. If left longer they will begin to develop leaves, and are then known as baby greens. Refrigeration can be used as needed to slow or halt the growth process of any sprout. Those sprouted in the dark will be crisper in texture and whiter, as in the case of commercially available Chinese Bean Sprouts, but these have less nutritional content than those grown in partial sunlight. Growing in full sunlight is not recommended, because it can cause the beans to overheat or dry out. Subjecting the sprouts to pressure, for example, by placing a weight on top of them in their sprouting container, will result in larger, crunchier sprouts similar to those sold in grocery stores. The sprouted beans can be eaten raw or cooked.