What does "use in moderable quantities as required by production" in food additives mean?

",
food additives
as long as the prescribed use is safe", I believe many people have heard this sentence.However, some
national additives
do not limit usage at all, and are described in national standards as sumable use as required by production", i.e. the competent authorities do not limit the amount used, and producers use as much as they want. What does this phrase mean by "using it in moderable quantities as required by production"?generally does not specify the use of limited additives can be broadly divided into two categories one is that its safety is high until casual use will not be a problem, such as many emulsifying agents, thickeners.such additives are subject to process necessity and cost constraints, national standards stipulate that the use of food should be reduced as much as possible, provided that the desired effect is achieved. For example, thickener guar gum, jaundol, ggluent, cara glue, etc. , if the use of 5 g / kg has been able to achieve the desired effect, taking into account the cost, the producer will not add more.other category is that it is not possible to use the amount of health damage, that is, has "self-limiting".typical representative is the fragrance fragrance, add a little is very fragrant, if used more, the taste is not acceptable. It is not difficult for people who have cooked to understand that any seasoning is used too much, not only can not make the taste better, but also counterproductive, even more so the consumption of flavors and spices.such as sweetener aspartas sweet, stevia glycoside, sweetener, flavoring agent flavor nucleotides, sodium glutamate, etc. , are also added to simply can not eat.acidity regulator is also impossible to use more, such as sodium bicarbonate (small soda), do steamed bread if put more, steamed hair yellow, taste astringent.