Category:catering food

Question:
sesame oil stored in glass bottles in the winter of why ice

Answer:
is not the case, the same pure sesame oil to the freezing the state standards tests do frozen storage of 5.5 zero Celsius, the freezing is not qualified, the average consumption of oil at zero degrees Celsius put a long time, will be freezing, but canola oil will not be freezing at zero degrees Celsius in freezing itself is
physical characteristics of oils and fats, but a different oil just not the same as freezing point, question the process should not be frozen, but freezing.
If the freezing of oil which do have water, the national standard water is not more than 0.05% of compliance.
I think it should be asked Sir or Madam mistaken for the freezing ice, and where there is so outrageous food for oil.
Generally, if the oil inside the water released will be a long time generate free fatty acids, for a long time after the exceedance of water were immiscible with the oil (note that is putting a long time, the principles of oiling is not miscible with water), the peroxide value in this case will rise,
eating such The edible oils and fats will have diarrhea or dizziness, which I explored in the industry for a long time, usually in the sesame oil plus palm oil manufacturers which are small
method for making sesame oil, there are two, one for the press law, another way for the wet milling law, if the machining process control is not strictly the above problems occur.

I think that the freezing of edible oils and fats will not affect its quality problems, mainly to see whether it exceeded its other targets, such as acid value, moisture, peroxide value , color and so on.
we can not simply believe that freezing of the problem is the oil, such as peanut oil, at zero degrees Celsius without freezing, then the peanut oil have a problem, it should be freezing fishes, or inside a large soybean oil, or mixed Other oil, peanut oil prices due to higher prices of soybean oil is relatively low more.

Answer:
because of relatively high melting point of sesame oil, in the above freezing, so cold on the ice of the Tianyi.

Answer:
is a relatively high freezing point of it, upstairs!

Answer:
not only sesame oil, other oils and fats will be solidified. This is because the characteristics of oils and fats decision.

Answer:
under normal circumstances, oil at low temperatures, will become porridge-like fluid, if there is water ice, then instructions.

Answer:
Description sesame oil is not very alcohol.

Answer:
you that may not be really, really sesame oil only on the fridge freezer room temperature before it solidified as a whole. That you might be cooking oil inside it. The freezing point of sesame oil and other oils and fats compared to the lowest

Answer:
in general these two points is the same bar

Answer:
do not know what you said is which sesame oil species, if it is in bulk oils, the winter will be solidified that it contains a variety of ingredients, palm oil component in the majority. because of palm oil prices cheaper than the melting point of 20 degrees.
currently on the market there is a pure palm oil, it is to winter will be solidified, some of the melting point of about 14 degrees it becomes a paste, but this does not affect its quality.
said sesame oil so you will be frozen in winter, I expect you to buy is not pure peanut oil or soybean oil , but contains a variety of ingredients blend oil. If it is bought in large supermarkets in general are not quality problem, you can rest assured that food, or home delivery distributors or manufacturers, and are guaranteed.

Answer:
is a relatively high freezing point

Answer:
because the sesame oil contains moisture inside the sake of

Answer:
is not frozen, sesame oil relatively high melting point, but has only solidified.

Answer:
you say sesame oil is sesame oil it, icing was referring to the porridge-like do? Furthermore, we need to explain about the time at room temperature.

Answer:
I can assure you that the real sesame oil is pressed sesame oil, will not freezing sub-zero, ice is mixed with other ingredients.

Answer:
must sesame oil adulterated

Answer:
say rational, I am upstairs. Cooking oil generally will not cure, only palm oil at 22 ℃ below freezing will become a white block.

Answer:
pure sesame oil is generally not freezing, if the freezing is adulterated sesame oil inside. Now there are a lot of sesame oil laced bean oil, peanut oil and so on.

Answer:
is mainly water containing large

Answer:
and water is like a truth呀!

Answer:
halo, my family farmers, eating life has not seen ice sesame oil, and sesame oil on my house on the bowl inside. It was lard icing it, fools.

Answer:
oils are some very complex mixture of components, but mainly by a series of saturated and unsaturated fatty acid ester composition (the content of this, but oh high school chemistry).
vegetable oils containing mainly unsaturated fat (in fact, is material, a lot of molecules en key is), freezing point are generally lower, while animal fats contain more saturated fat, freezing point higher than zero may be able to condensation, such as the lard.
Now many oil products, in fact, in order to taste, cost, and many other factors are used to deploy a variety of oils and fats, so the sesame oil would be icing on the point is not surprising.

Answer:
sesame oil Riga water.

Answer:
linoleic acid, palmitic acid and other unsaturated fatty acids at low temperature, easy to freezing

Answer:
because the temperature dropped below freezing.

Chinese:为什么 香油冬天会结冰

类别: 餐饮食品

问题:
存放在玻璃瓶中的香油冬天为什么会结冰

回答:
不是这样的,纯正香油一样给冻的,国家标准在做冷冻试验时在摄氏零度存放5.5时,不结冻为合格,一般的食用油脂在零摄氏度放久了,都会结冻的,但菜籽油在零摄氏度是不会结冻的
结冻本身就是油脂的物理特性,只是不同的油品凝固点不一样而已,提问过程中应该不是结冰,而是结冻.
如果结冻是油里面确实有水份,国家标准水份是以不超过0.05%为合格.
本人认为应该是提问的先生或女士把结冻误为结冰了,哪里有这样离谱的食作油.
通常来讲油里面的水如果放久了会产生游离脂肪酸,久了后超标的的水分份会与油互溶(注意是放久了,原则上油与水是不互溶的),这种情况下过氧化值会升高,
人吃了这样的食用油脂会产生腹泻甚至头晕,本人在行业里面摸索很久,通常在香油里面加棕榈油的厂家是不多的
香油有两种制法,一种为压榨法,另一种为水磨法,如果加工工艺控制不严格会出现以上的问题.

本人认为,结冻的食用油脂不会影响其质量问题,主要看它的其它指标是否超标,如酸价,水份,过氧化值,色泽等.
我们不能单一认为结冻了就是油品有问题,比如花生油,在零摄氏度不结冻,那这个花生油就有问题了,应该是结冻才对,否则里面掺了大豆油或其它油,因花生油价格比较高,大豆油的价格比较低些.

回答:
因为香油的熔点比较高，在零度以上，所以天一冷就结冰了。

回答:
是凝固点比较高吧,楼上的!

回答:
不光香油，其它油脂也会凝固。这是因为油脂的特性决定的。

回答:
正常情况下食油在低温下会变成粥状流体，如果结冰的话说明有水。

回答:
说明香油不是很醇的。

回答:
你那可能不是真的，真的香油只有放在冰箱冷冻室内的温度才可使它整体凝固。你那可能是有食用油在里面呢。香油的凝固点与其它油脂比起来{zd1}

回答:
一般来说这两点是一样的吧

回答:
不知道你所说的香油是指那一种,如果是散装的香油,冬天会凝固说明它含有多种成分,棕油的成分占多数.因为棕油价格便宜些的熔点在20度以上.
目前市面上有一种纯棕油,它到了冬天也会凝固,有些熔点在14度左右的就会变成糊状,但这并不影响它的质量.
所以你说的香油冬天会结冰,我估计你买的不是纯花生油或大豆油,而是含有多种成分的调和油.如果是在大超市里买的,一般都没有质量问题,可以放心食用,或者是经销商或厂家送货上门的,都有保障.

回答:
是凝固点比较高

回答:
因为香油里含有水分的缘故

回答:
不是结冰，香油的熔点比较高，只是凝固了而已。

回答:
你所说的香油是指芝麻油吧，结冰指的是呈粥状吗？另外还要把当时的室温大概说明一下。

回答:
我可以肯定的告诉你，真正的香油就是芝麻榨的油，零度以下也不会结冰，结冰的都是掺了其他成份的。

回答:
一定是香油掺了假

回答:
说的有理，我楼上的．食用油一般不会凝固，只有棕榈油在22℃以下才会凝固成白色块状。

回答:
纯正的香油一般是不会结冻的,如果结冻就是在香油里搀假了.现在有很多香油搀有豆油、花生油等。

回答:
主要是含水分大

回答:
和水是一样子的道理呀!

回答:
晕，我家是农民，吃了一辈子香油也没见结冰，而且我家香油就放在瓷碗里。结冰那是猪油吧，上当了。

回答:
油脂都是一些成分很复杂的混合物，但主要由一系列饱和和不饱和脂肪酸脂组成（这可是中学化学的内容哦）。
植物性油脂主要含不饱和脂肪（其实就是物质分子中烯键很多啦），凝固点通常较低，而动物性油脂含饱和性脂肪较多，凝固点较高，可能在零度以上就能凝结，比如猪油。
现在很多油脂制品，其实为了口味、成本等多种因素都是用多种油脂调配的，所以香油会结冰就一点不奇怪了。

回答:
香油里加水了。

回答:
亚油酸、棕榈酸等不饱和脂肪酸在低温度时容易凝固

回答:
因为温度降到冰点以下。