Precautions for use of colorant

Introduction: when using the colorant, you should pay more attention to it Improper use can be very dangerous Here are the precautions for using the colorant There are many kinds of colorants, and the use methods of each colorant are different Many people ask about the harm of excessive colorants In fact, there are regulations for the use of food colorants The following safety net introduces the precautions for the use of colorants 1 The pigment used shall meet the standard The pigment used must be the pigment specified in the hygienic standard for the use of food additives, and the dosage must be within the range specified in the standard According to the regulations, the pigment used shall be marked in the trademark 2 Correct selection of pigment To fully understand the properties and beverage status of various pigments, we should select appropriate pigments according to the characteristics and use conditions of pigments The color should be similar to the original color of food The pigment with high purity should be selected as far as possible The purity of pigment is high, the brightness and extension of color are good, and the discoloration and fading are few When colored food is likely to ferment or produce hydrogen, or when adding reductive seasoning or spices, it is necessary to select reductive pigments 3 Color matching method In addition to the three basic colors of red, yellow and blue, the pigment can also be mixed by the basic color according to different proportions, matching the secondary color, and matching the tertiary color by the secondary color 4 Correctly select the mixed pigment When color matching, the solubility, permeability and colorability of the mixed pigment should be similar or similar, otherwise, the color layer separation will be caused, the color inside and on the surface of the colored food will be different, or the color of the pigment solution will be different from the color of the product For example, when indigo and red moss are used together, indigo will make red moss fade faster; when indigo and lemon yellow are used together, indigo will fade quickly under sunlight 5 Prepare pigment solution Powder pigment can not be directly added to food, and it is easy to cause uneven coloring and pigment spots when directly using powder pigment Therefore, when color mixing, you should first prepare a solution to dissolve the pigment in water, ethanol, propylene glycol and other appropriate solvents, so as to make it completely dissolved It is better to use it after filtration For example, when making coffee color, first dissolve amaranth, new carmine, lemon yellow, sunset yellow and bright blue in water respectively, and mix them in solution state The concentration of pigment solution is generally 1% - 10% In color matching, different solvents or solvent concentrations lead to different colors, especially when two or more colors are used for color matching For example, a certain proportion of red, yellow and blue mixtures have a yellow color in aqueous solution and a red color in 50% alcohol towel As long as there are food additives, there will be food safety detector, because only food safety detector can accurately detect food safety, whether the dosage of food additives exceeds the standard, and whether consumers can use them normally Therefore, I would like to remind you to learn more about food safety at ordinary times, so as to help us live a better life Editor in charge: he xianrob