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# Adding Ingredients

**Editing Ingredients and Applying Deletion Methods in Tech Cards**
When creating a tech card, certain adjustments in ingredients must be made to ensure correct stock reduction. Follow these steps:
1. Go to **Back Office → Menu → Products**.
2. Find the tech card you want to edit. Click the **three dots** next to it and select **Edit**.
3. Go to the **Ingredients** section. First, check the **Deletion Method**.
### **Deletion Methods**
There are **two types of deletion methods**:
**1. Delete from Ingredients:**
When selected, the ingredients listed on the tech card will decrease individually from stock as sales occur.
**2. Delete from Ready Product:**
When selected, the tech card itself will decrease from stock as a whole, instead of its ingredients.
💡 Choosing the correct deletion method is very important to keep stock data accurate. Make sure to select the method that fits the tech card’s specifics.
### **Adding Ingredients After Selecting “Delete from Ingredients”**
After selecting **Delete from Ingredients**, you can add the following to the tech card:
* **Ingredients**
* **Semi-finished Products**
* **Ready Products**
* **Tech Cards**
**1. Adding Ingredients:**
Enter the quantity to reduce from stock per portion in the **Brutto** field. If the ingredient exists in stock, it will decrease accordingly.
If the reduction does not happen, go to **Menu → Ingredients**, find the ingredient, click **Edit**, and make sure **“Do not calculate stock”** is **not active**. If this option is active, stock will not reduce. Once enabled, it cannot be reversed.
**2. Adding Semi-finished Products:**
Enter the quantity to reduce from stock per portion in the **Brutto** field.
* If the semi-finished product exists in stock, it will decrease.
* If it does not exist, check the deletion method:
    * **Delete from Ready Product:** the semi-finished product itself will decrease.
    * **Delete from Ingredients:** the ingredients of the semi-finished product will decrease.
**3. Adding a Tech Card:**
Enter the quantity to reduce per portion in the **Brutto** field.
* If the tech card exists in stock, it will decrease.
* If it does not exist, check the deletion method:
    * **Delete from Ready Product:** the tech card itself will decrease.
    * **Delete from Ingredients:** the ingredients of the tech card will decrease.
**4. Adding Ready Products:**
Enter the quantity to reduce per portion in the **Brutto** field.
* If the product exists in stock, it will decrease.
* If the reduction does not happen, go to **Menu → Products**, find the product, click **Edit**, and make sure **“Do not calculate stock”** is **not active**.
* ![](https://storage.crisp.chat/users/helpdesk/website/-/7/4/0/e/740e20bde3bec000/image_7eg18o.png)
|| 💡 If a semi-finished product contains another semi-finished product, or a tech card contains another tech card, pay special attention to the deletion methods.
* If the deletion method is **Delete from Ready Product**, the ingredients inside will **not decrease**, only the tech card or semi-finished product itself decreases.
* If the deletion method is **Delete from Ingredients**, the ingredients inside will decrease from stock.
|| 💡 If your product’s deletion method is **Delete from Ingredients**, but the product itself is still in stock, first the stock of the product will decrease. After it is finished, the ingredients listed in the tech card will start decreasing.