Cream of tartar is an acidic white powder.
Tartar powder belongs to the food additive category. The main purpose of the cake house in cake making is to help beat the protein and neutralize the alkalinity of the protein, because the protein is very alkaline. Moreover, the longer the eggs are stored, the more alkaline the protein becomes. Foods made with a large amount of egg white have an alkaline smell and a yellowish color. Adding cream of tartar can not only neutralize the alkaline smell, but also make the color whiter.
If you don’t have tartar powder, you can also use some acidic ingredients such as white vinegar instead, but the amount used must be considered because the acidity of these juices varies. Generally speaking, a teaspoon of cream of tartar can be replaced by a tablespoon of lemon juice or white vinegar, but the amount of protein should be reduced by about ten grams. You don’t need to worry about the vinegar smell when using white vinegar. It neutralizes the alkaline nature of the protein and makes it less noticeable after baking.
How to make tartar powder
1. Mix 120g of low-gluten flour, 3g of Diamond Baking Powder and 0.5g of vanilla powder in ingredient B and sift them aside.
2. Take two large bowls and wipe them clean with paper towels until the bowls are oil-free and water-free.
3. Separately beat the egg whites and egg yolks into the two large bowls in step 2.
4. Use a whisk to break up the egg yolks in the bowl.
5. Continue to add milk, salad oil, fine sugar and salt and mix until no particles exist.
6. At this time, you can use a scraper to test whether the materials in step 5 still have undispersed sugar and salt particles.
7. Mix the ingredients in step 1 and the ingredients in step 6 until evenly mixed.
8. Pick up the egg beater and test it. If the batter is smooth, fine and fluid, it is successful.
9. In a large bowl filled with egg whites, add 100-tonne tartar powder.
10. Use an electric mixer to beat the egg whites until big bubbles form.
Reference for the above content: Baidu Encyclopedia - Tartar Powder