If you have purchased a slow cooker that is too large for your needs and you want to safely reduce its capacity, there are a couple of options you can consider:
Use a heat-resistant divider: Some slow cookers come with dividers or inserts that can be used to separate the cooking area, allowing you to cook smaller portions on one side. If your slow cooker came with such an accessory, follow the manufacturer's instructions to use it safely.
Create a DIY divider: If your slow cooker doesn't have a specific divider, you can attempt to create one using heat-resistant materials. Make sure to use materials that can withstand the slow cooker's cooking temperatures. Stainless steel or aluminum sheets or foil could be an option, but be cautious not to interfere with the slow cooker's heating elements or temperature control. You may need to get creative and inventive, but always prioritize safety.
Use oven-safe dishes: Instead of trying to divide the slow cooker itself, you can use oven-safe dishes or containers inside the slow cooker to separate and cook smaller portions. Place the dishes strategically to utilize only one side of the slow cooker effectively.
Batch cooking and freezing: If you can't find a safe way to reduce the slow cooker's capacity, consider using the large slow cooker to prepare larger quantities of food. You can then portion the cooked food and freeze it for later consumption.
Regardless of the method you choose, safety should be your top priority. Make sure any materials or inserts you use are heat-resistant and won't release harmful substances when exposed to high temperatures. Additionally, do not obstruct the slow cooker's ventilation or heating elements, as this can lead to uneven cooking or even damage the appliance.
If you are unsure about modifying your slow cooker or using certain materials, it's best to contact the manufacturer for guidance or consider exchanging the slow cooker for a more appropriately sized one that suits your needs.