Manufacturers who have used antioxidants such as BHA、BHT、VC natrium or PG do not have to change their technics and prescription. All they have to do is to replace their original antioxidants with TBHQ.
The latest information abroad shows that TBHQ has excellent stabilization effect on unsaturated fat (esp. high unsaturated vegetable oils) and edible animal fat. It also applies to essence oil, nuts, inedible animal fat, tallow and food packing materials such as cellophane paper and paraffin oil.
The most important principle of adding TBHQ in food is: to guarantee that the antioxidant is dissolved completely and distributed averagely in fat and oil. Only a small amount of （0.2g/kg）TBHQ in food oil is needed so whether antioxidation is successful or not depends on the method how the antioxidant is added. The choice of method relies on products, processing method and facilities a factory can provide. TBHQ can be used according to the following one or several methods and prescriptions.
1、Direct method
Heat fat or oil which needs stability to over 60℃. After the fat or oil becomes liquid completely, stir TBHQ until it dissolves totally. Go on stirring for 20 minutes to make sure that it distributes in the fat or oil evenly(do not stir energetically less too much air is in the fat or oil.
2、Antioxidant condensation method
Dissolve TBHQ in a small amount of fat or oil (at 93℃-121℃) to make condensed TBHQ antioxidant solution. Add the solution directly into oil or use a quantifier to add the solution into liquid oil and stir until it is distributed evenly.
For example: melt 200 g TBHQ into 5kg vegetable oil at the temperature 93℃-121℃ to make condensed TBHQ solution. After the solution is made, one ton fat or oil can be added directly into the solution or it can be put into the flavor for meat products and mixed with one ton diced meat to achieve the antioxidation effect.
3、Proportion method
Condensed TBHQ solution should be added proportionately or with the help of a quantifier into the pipe through which oil that needs the antioxidant will pass. Stainless steel pump should be used to measure the quantity of antioxidants needed. When the method is adopted, attention should be paid to enough onflow in the pipe which makes the antioxidant distribute evenly.
4、Spray method
TBHQ which has been diluted according to proportion needed can be sprayed directly onto nut food. The concentration of the solution should be adjusted according to quantity needed and the solution be guaranteed to spray evenly on the surface of products.
5、Other methods
Other innovative methods can be adopted to add TBHQ antioxidant into all kinds of food. Enterprises may put up new methods in light of characteristics of their products. For instance, TBHQ can be mixed into condiments and then put into sausage, other meat products or fried food to make their quality stable.