: pale salt water can dissolve formaldehyde and pesticide residue
International food packaging association secretary general dong jinshi Suggestions, you can choose to use pale salt water to wash the dishes.About weak brine concentration, similar to our usual gargle with weak brine concentration.Wash dish on the length of time, dong jinshi, said in the pale salt water bubble 3-5 minutes, then rinse with water.Methods recommended the pale salt water to wash the dishes, dong jinshi, first of all, compared with clear water, brackish water itself has the effect of sterilization.
In addition, the solubility of weak brine to formaldehyde is bigger, can dissolve may exist formaldehyde residues in vegetables.Dong jinshi also said that in fact is not only vegetables, just bought new clothes in the pale salt water immersion, which may contain formaldehyde residue which can be removed.Finally, some may contain pesticide residues in vegetables, with pale salt water to soak, also can make these substances dissolve, reduce the possible existence of pesticide residues in vegetables.
The water that clean out rice: better placed to wash the dishes after a certain time
"With baking soda water or rice water to wash dishes method is desirable, this is because the baking soda water and alkaline water that clean out rice, can help reduce the harmful substances on vegetables," the purpose of, but for the choice of the water that clean out rice, dong jinshi, just find a m of water, alkali is not very obvious, wash dish after fermentation effect will be better, so if it is to wash the dishes, try not to use the water that clean out rice immediately, can place a period of time, because the water that clean out rice will be placed in the process of fermentation, the viscosity will be more and more big, the alkaline will also increase.In addition, the water that clean out rice itself has certain viscosity, can be adhered on the surface of the adsorption of food some of the pesticides and chemicals, remove the vegetables, also is more effective for some fruit cleaning, including grape, mulberry, strawberry is not easy to wash fruit, such as using rice washing water is safe.
Flour water: decomposition of pesticide residues as the water that clean out rice
As for the use of flour water can remove vegetable pesticide residues, dong jinshi, said using flour desirable for washing dishes, but what need reminds is, compared with the water that clean out rice, flour, alkaline water is a bit low, the ability of decomposition of pesticide residues will be slightly low, especially for the phosphorous pesticide, and the water that clean out rice can normally hydrolyzed by some phosphorous pesticide, reduce the toxicity.
Fruit and vegetable cleaning agent: good effect in the water that clean out rice but poor security
Fruit and vegetable cleaning agent is also a lot of people the choice of cleaning vegetables.The reporter understands, in fruit and vegetable cleaning agent sold on the market at present, many products labeled contains natural salt, surface active agent, there are some claims for the pure natural material itself, by the high temperature processing refined but become, can remove pesticide residue in fruits, vegetables and other ingredients surface, bacteria, polish and colouring agent, etc.Fruit and vegetable cleaner to remove pesticide residues in vegetables at the same time can ensure safety?To this, dong jinshi, told reporters that use detergent to wash the fruit and vegetable dish is desirable, if you can guarantee the quality of cleaning agent, washing effect is generally better than rice water.But to be sure, some fruit and vegetable cleaning agents containing chemical composition, compared with the above several ways, sometimes security is relatively poor.
Hot water blanch to pesticide residues
The national secondary public nutritionist Li Guangping advice, for some vegetables to blanch in hot water, should choose as far as possible blanch in hot water, this itself is also a better way to remove pesticide residues.
In general, it's difficult to clean and may use pesticides in the process of planting vegetables, use the method above can effectively remove mud and pesticide residues in certain vegetables, such as cauliflower, for some skin more bright and clean, easy to clean vegetables, such as potatoes, tomatoes, etc., there is no need to take these methods.
Clear water is rinsed repeatedly or peeling is safe
Li Guangping methods for removal of pesticide residues in vegetables, the experimental results show that clear water is rinsed repeatedly can effectively remove pesticide residues in vegetables.In addition, about the use of salt water, soda water, flour, water and the water that clean out rice method can more effectively remove the problem of pesticide residues in vegetables, Li Guangping said, found by experiment, and compared with clear water is rinsed repeatedly, these methods are actually in removing pesticide residues in vegetables, have their own characteristics, cannot treat as the same.
For cucumber Li Guangping explain, for example, spring cucumber with baking soda water to clean is effective for removing pesticide residues, but to be sure, this method does not apply to all types of vegetables, because different vegetables could contain pesticide residue is not the same, in the case of cowpea, with baking soda water to clean the effect is obvious, there is no cucumber which method is more effective, so it is difficult to generalize and nots allow to ignore a problem is, in the summer, because the temperature is higher, flour and the water that clean out rice water itself is also easy to breed microorganisms, in general, clear water is rinsed repeatedly compared with skinless way is a good choice.