How Double Fold Vanilla Extract Is Made for Baking

Double fold vanilla extract is a highly concentrated vanilla liquid created by using twice the amount of vanilla beans as standard "single fold" extract. While standard extract uses approximately 1 oz of beans per 8 oz of alcohol, double fold uses 2 oz of beans per 8 oz of alcohol. 

Here is the step-by-step process for making homemade double fold vanilla extract

Ingredients & Materials

• Vanilla Beans: 2 ounces (approx. 15-20+ Vanilla Beans Grade A).

• Alcohol: 8 fluid ounces of 80-proof (40% alcohol) vodka, bourbon, or rum.

• Jar: Glass container with a tight-fitting lid (8oz - 16oz capacity).

• Kitchen Scale: To ensure accurate, high-concentration ratio. 

Step-by-Step Process

1. Prepare the Beans: Using a sharp paring knife, slice the vanilla beans lengthwise to expose the "caviar" (seeds) inside. This increases the surface area for maximum flavor extraction.

2. Cut for Fit: If the beans are longer than your jar, cut them in half widthwise.

3. Place in Jar: Place all 2 ounces of split beans into your glass jar.

4. Add Alcohol: Pour the 8 fluid ounces of alcohol over the beans, ensuring they are completely submerged. If beans are not submerged, they may become rancid.

5. Seal and Label: Close the jar tightly. Label with the date and type of alcohol used.

6. Store and Shake: Place the jar in a cool, dark place (like a pantry). Shake the jar every few days for the first two weeks, then sporadically after that.

7. Time (Aging): Allow to steep for at least 6 months, though 12 months is ideal for the richest, most complex flavor. 

Important Tips for Double Fold

• Why Double Fold? It provides a deeper, more intense flavor profile and is ideal for recipes where you want a very strong vanilla taste, such as ice cream or custards.

• Refilling: Once you begin to use the extract, you can top it off with more alcohol to keep it going for a few months.

• Used Beans: After 1-2 years, the beans may lose potency. They can then be dried and used to make vanilla sugar or powder.

• Cost: While more expensive up front due to the number of beans, double fold is more economical long-term, as you can use less of it in recipes. 

Important Usage Note: While it is twice as strong, it is not always recommended to simply use half the amount; for maximum flavor impact, some chefs recommend using the full amount to achieve a richer, more profound, and "premium" taste.