Hebei sanitary control office releases the oil differentiation method of the underground drainage

Hebei sanitary control office releases the oil differentiation method of the underground drainage
News of Youth Newspaper of Hebei (reporter Zhang Yan) Yesterday, Hebei sanitary control office sent out the health to brief on, reminded consumers through seeing, hearing, tasting, hearing, asking five links distinguished " oil of underground drainage " . Differentiation method:
See: See through the lightness, the pure vegetable oil is transparent in shape, because of mix with things such as the lipoprotein of alkali, wax quality, impurity,etc.ing in process of production, the transparency will drop; See the color and luster, the pure oil is colourless, because the pigment in the oil is dissolved into oil in process of production, the oil will bring the color; See precipitate, its principal ingredients are impurity. Make and mix a large amount of moisture in course, can not refine clean with because the edible oil not up to standard, so the oil will look a little more lightly than qualified oil color. In addition, can also look over the packaging of the oil bottle, it is often unstandard to pack the oil not up to standard, it is not tight to seal. Because the oil not up to standard mostly undergo the packaging two or more times, the bottle body is often speckle with a lot of grease spots.
Two is smelt: Each kind of oil has each unique smell. Can drip a few drops of oil on the palm, both hands are closed up and gritted, hear its smell carefully while generating heat. The oil with peculiar smell, prove quality is problematic, that there is the stink will be probably the oil of underground drainage; If there is smell of mineral oil let alone bought.
Three is tasted: Fetch a drop of oil, its taste of having a trial test carefully with the chopsticks. The oil with tart flavor of mouthfeel is a subquality product, there is burnt and bitter tasting oil that frustrates the acid, the oil with peculiar smell may be " The oil of underground drainage " .
Four tins: Fetch the intersection of oil reservoir and a few of oil of bottom, scribble at the flammable paper, light and listen to its noise. It is an acceptable product that there is not a noise normally in burning; Burn abnormally and send out " Creakily creakily " The sound, the moisture exceeds standard, it is a subquality product; Send out while burning " Pi " Explosion sound, indicate the water content of the oil exceeds standard seriously, and is probably adulterated products, can't buy absolutely.
Five asks: Ask the intersection of purchase and channel of trade company, ask for the intersection of purchase and invoice or look over local the intersection of food hygiene and superintendent office sample examining report if necessary.
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