Storage and packaging of buckwheat

The main product made from buckwheat is unground buckwheat, which is one of the most popular food products. Its shelf life is determined by the conditions in which the batch of cereals is stored, the quality of the grain raw materials from which the cereal was produced, the processing technology and the type of packaging and ranges from eighteen months to two years. Optimum parameters of temperature and humidity in clean, dry, sufficiently ventilated rooms are from 5 to 15  С and no more than 70% humidity.

The higher the quality of the batch of grain for processing (grain of the same type, shape, technological properties), the less moldy self-warmed and unfulfilled grains, additional impurities in the form of leaves, husks and dust, and foreign odors in it. It is impossible to obtain high-quality cereals from low-quality buckwheat kernels, since the entire set of deficiencies in grain raw materials is transferred to cereals. A quality product that is in demand on the buckwheat market is obtained only from fresh, well-made grain.

During long-term storage, buckwheat can change color – it is determined visually by sprinkling a portion of cereal in a continuous layer on black glass or paper under diffused daylight or artificial lighting. Buckwheat does not like sunlight, it should be stored in darkened rooms in opaque packaging. With a darker setting and a lower temperature, the shelf life of the cereal increases.

Buckwheat absorbs odors well, therefore, it is necessary to take into account the commercial proximity when storing it in the same room with products with strong aromas, for example, in the warehouse of stores.

The nutritional value of buckwheat is influenced by moisture parameters during storage. The higher the moisture content of the cereal, the faster it deteriorates. Groats with minimal moisture and dry can be stored almost indefinitely. The maximum moisture content during long-term storage of hydrothermally treated buckwheat kernel is 14%. Buckwheat obtained from unboiled grains, during long-term storage, should also have a moisture content of no more than 14%. If the groats are intended for current consumption, then a moisture content of no more than 15% is allowed.

Foreign weeds (rotten and broken kernels, fruit shells, etc.), contained in cereals in excess of the standards, translate the product into a lower grade up to non-standard.

The presence of pests in the stored mass is unacceptable. The dimensions of individual particles of a metal-magnetic impurity in a linear dimension should not be larger than 0.3 mm and not exceed a mass of 0.4 mg. Before packing in bags or packaging in bags, control sifting of cereals and separation of metal-magnetic impurities are carried out.

Buckwheat groats

Buckwheat groats can be stored both in factories producing it, and in warehouses and bases of agricultural organizations, in warehouses of trade and public catering enterprises. It is stored, as a rule, in textile containers – bags made of linen, jute, cotton or mixed fabrics with a capacity of up to 50-70 kg. Bags are marked with a label on which they put the name of the product, its type, grade, net weight, date of production and the number of the standard. Groats, packaged in small containers (1-3 kg), are stored in boxes and boxes on pallets or racks.

The kernel is removed at processing plants using weighing equipment. Modern machines carry out filling with simultaneous weighing and weight regulation. Sack sewing is also mechanized and takes place on sack sewing machines. With the full mechanization of the hole-making department, the movement and delivery of products to pallets is carried out using belt conveyors and screw slopes. The pallets are then sent to the finished goods warehouse. In the absence of mechanization (in small industries), bagging, weighing and sewing of bags are done manually, as well as transportation of cereals – on wheelbarrows.

Buckwheat is packed in linen, jute or cotton bags, cardboard boxes, packed in paper or polyester single-layer bags of 0.5 kg or more. In addition, for packaging, multilayer films made of polypropylene and polyethylene are used in the form of three-seam bags, doy-packs, bags with side folds, etc. For retail groceries, such packaging is optimal, as it is airtight and resistant to external influences. Also, buckwheat is packed in a cardboard container. Cardboard is an environmentally friendly packaging material and can be easily disposed of or recycled without harm to the environment.