How to calculate the moisture content of corn? How to identify corn scams when selling corn in the fall?
Now it is time for the corn harvest, and it is time for farmers to sell grain. This year's corn harvest is not very good in most areas, but it must be sold well, but the grain traders can not be pitted. When selling corn, the water content of corn will affect the purchase price of corn, but many farmers do not know how to judge the water content of corn. The following small series will give you a brief introduction to the calculation of corn water content and the common food traffickers.
Sensory judgment method for corn grain water content
Through sensory judgment of corn moisture content, mainly through five aspects, namely, licking, grasping, biting, watching, and licking.
瞧: The more fine lines on the top of the corn kernel, the more dry the corn.
Grab: Grab a handful of corn kernels and hold more corn.
Bite: The sound is crisp when the teeth are bitten, and the corn kernels of the bars are dry.
Look: the germ is dry, dry white, and cross-cut into powder, indicating that the water is about 13%.
æŽ: Handnails lick the concave side of the upper part of the corn germ, slightly traced, indicating that the water is about 14%; if there are traces, and the traces are large, there is a broken skin, then the water is about 15%; if it is corn The upper end of the embryo is soft and the color is dark and the water content is about 16%.
The sensory criteria for corn kernels with different water contents are different:
Within 14%: The color of the corn kernel is normal, the teeth bite has a vibrating and crisp sound, and the size of the granules is different, and the section is smooth. There is a slippery "brake" feeling when you grasp or insert into the grain pile by hand, and there will be a "clam" sound when stirring in the pile. The embryo is sunken and dry.
15%-16%: The color of the grain is normal. The teeth are bitten with vibration. The sound is not crisp. When the hand is gripped or stirred, it slips but does not “brake the handâ€. The embryo shrinks and sinks, and the finger can be slightly invaded. There are shiny oil trails.
17%-19%: The color of the grain is fresh, there is a sound when the teeth bite, and the teeth are not damaged. The embryo has a depression, which is easy to break in with nails and has wet marks on the nails.
20%-24%: The seeds are moist, bright and shiny. Touching the hand with a low voice, feeling the tide, feels resistance when the hand is inserted into the corn heap. The embryo is basically level with the grain surface, brittle when the teeth are bitten, slightly low or no sound, and the slag is often connected.
More than 25%: The grain is moist, the color is bright, the gloss is strong and bright. The embryo is full or slightly protruding, and it is easy to squash when biting with a tooth, without sound, and it is difficult to insert the hand into the grain pile.
About 30%: The corn kernels are large and humid, the colors are bright and bright, the embryos are swollen and protruding, and water is oozing out from the nails.
Attachment: conversion of corn moisture content (dry and dry food):
Take 30% as an example:
A moisture deduction of 1.5 (different deductions for different companies)
30-14.5=15.5
15.5×1.5=23.25
100 pounds of grain deducted 23.25 kg!
The price of different moisture content is not the same, but the price to be converted into the standard moisture content, for example, the price of 30% corn is 990 yuan / ton, according to the market price of the national second-class corn moisture (14.5%)? :
1000kg × (1-30%) = 700kg = 990 yuan. Then 900÷700≈1.286 yuan per jin
1000kg × (1-14.5%) = 855kg. Then 855 × 1.286 = 1095.53 ≈ 1100.
For example, the price of corn safe water is 1,500 yuan a ton, and safe water is 14%. Then how much is 28% of the ton?
The price of anhydrous corn: 1500/(1-14%)=1744.186
So the price of your 28% corn is 1744.186X (1-28%) = 1255.8
Another example: 35 water of corn, dried to 15 water, 100 pounds of grain will still have a few pounds, the calculation method is å•¥?
(35-15) X1.5=30 kg, 100-30-=70 kg. 100 pounds of corn left 70 pounds.
According to the formula 100X (100-35) / (100-15) = 76.5 kg
Corn moisture and price calculation formula:
Tide food price / [1-{(tidal grain moisture-14) * discount ratio} / 100] = discount price
The above is the judgment of the moisture content of corn and the conversion method of moisture content. When farmers sell corn, they can judge the water content of their own corn first, and avoid being deceived by the grain seller.
What are the routine tricks of the grain traders?
Every year, during the peak season of selling grain, there are always some grain dealers who come up with various kinds of damages to attract farmers. Which tricks do they use often?
1. There is rice on the grain truck that comes with the grain seller. This must be paid attention to, and there must be problems.
2. Under the bottom of the grain truck, there is a dark water tank, and the water on the empty road is checked.
3. There are traces of sand in the gap between the big boxes of the grain truck.
The above three are all one type of way, all of which are on the weight. When farmers sell food, they must go to the car when they check the empty car, and then drive their own car to follow, to prevent the road from releasing water and unloading sand. It is absolutely impossible to let the grain-receiving car go first.
4. Electronic jammer, interference ground scale.
Prevent the method, put a small electronic scale on the side of the weighbridge, showing that the number of pounds does not move, when the grain is sold, observe the change in the number of pounds.
5. There is a dark layer on the gun, which can take away about 1200 kg of rice.
After loading the food, it is best to check the gun carefully.
The above is a trick used by scammers. When you sell food, you must pay attention to it. Don't let the hard-earned food be cheated by the liar.
The above is the full content of Xiaobian's introduction. Here, Xiaobian reminds the majority of friends to be vigilant. They must not give the liar a chance to survive. They must know how to protect their own interests so that their food can be sold at a good price.
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