Quick-frozen sweet potato is a processing technology in sweet potato. It can preserve sweet potatoes for a long time. Huinong School teaches everyone to make frozen sweet potatoes.
1. Process: raw material acceptance → rinse and peel → soak and wash → cut, block, rinse → steam → cooling → quick freezing → measuring bagging → packing → frozen storage
2. Process operation points:
(1) Selection of raw materials: Fresh sweet potatoes with a spindle shape, a conical shape and a round shape, and yellow and orange fleshy meat should be used as raw materials. Sweet potatoes that have been stored for more than 3 months after harvest are not suitable for use.
(2) Rinsing and peeling: Rinse the raw potato with clean water. For the concave and germinated parts, wash the impurities with a brush, then completely remove the buds and skin with a stainless steel knife, and remove the potato roots.
(3) Soaking and washing: The peeled sweet potato is first placed in a plastic bucket filled with clear water, concentrated and then transferred into a large pool with flowing water to prevent discoloration. Waiting for dicing and cutting is not too long.
(4) Cut and block: Cut on a clean, non-toxic, high-strength plastic hard board according to certain specifications. If strips are required, the multi-purpose cutting machine is used to cut the sweet potato into strips with a cross-sectional area of ​​4.8 mm × 4.8 mm and a length of 80 to 100 mm. Generally, the portion of the sweet potato that is not suitable for cutting is first cut and then cut. .
(5) Rinsing and color protection: The potato chips or French fries are repeatedly rinsed with purified water to remove surface starch and impurities, and then immediately bleached in a 0.5% sodium sulfite solution for 10 minutes. In order to prevent enzymatic browning under aerobic conditions, the peeled potato chips and chips should be immersed in clean water to isolate oxygen or immersed in a dilute solution of citric acid and ascorbic acid. In addition, do not touch iron containers, tools, equipment, stainless steel, plastic appliances should be used.
(6) Steaming: The washed potato chips or French fries are evenly spread on the steaming pan, drained, and steamed until cooked. Steam is usually steamed for 2 to 5 minutes using 0.29 MPa. During the cooking process, when the central temperature of the potato body reaches 110 degrees Celsius or above, it is considered to be fully cooked. If the sweet potato is overcooked, it will be soft or mushy, affecting the shape; if the sweet potato is not cooked, the product tastes very poor.
(7) Cooling: Place the steamed potato chips or French fries on a metal stand, cool to room temperature by natural airing or fan blowing, and properly turn during cooling.
(8) Quick freezing: It is advisable to use a fluid continuous freezing machine. When the temperature in the quick freezing room drops to about -40 °C, the feeding speed is adjusted, and the product center temperature is -18 ° C to -25 ° C in 25 to 30 minutes, the surface is not cracked, and the potato body is not connected.
The above is the modulation and processing method of broiler feed, for your reference, and hope to help you. Huinong School has more relevant agricultural technology knowledge. Continue to pay attention to Huinong School to answer questions during planting and breeding.
Introduction:
Broadly speaking,normal White Garlic which has 4-7cloves,with white papery-skin.with the characteristics of pure flavor,strong aroma,crsipy taste,rich nutrition,very popular in the markets
More knowledge:
The bulb of garlic,an allium plant in the lily family.with the pungent flavor and spicy taste.spherical shape with a diameter of 3-6.5cm. The surface is covered with white and papery-skin.
The top is slightly pointed, with residual scape in the middle,many fibrous root marks at the base. The bulbous valve is slightly ovoid, with a membranous outer skin, slightly pointed at the apex, and an arcuate bulge on one side.
Specification:
1.Brand:Changrong
2.Variety:Liliaceous Vegetables
3.Color:Pure white/Normal white
Normal White Garlic,Dehydrated Normal White Garlic,Dried 5Cm Normal White Garlic,Organic Normal White Garlic
shandong changrong international trade co.,ltd. , https://www.cragriculture.com