When it comes to preparing delicious meals, roasters and slow cookers are two of the most popular choices. Both of them offer convenience not too big in size and versatility as you can cook almost any kind of meal in both of them.
However, there are some distinct differences between these two. They are made for different cooking preferences and recipes. In short, roaster offers a faster cooking time than slow cookers. Also, there’s an obvious size difference where roasters are pretty big compared to slow cookers.
Below, we have differentiated slow cookers and roasters by their general characteristics, in an attempt to help you make an educated choice. So, read on!

What’s Slow Cooker?
The slow cooker, also known as a crock pot, is a countertop electrical appliance. It is designed to cook food at low temperatures over an extended period of time. Its primary advantage is its convenience. Also, it can transform tough cuts of meat into tender without any effort from your side.
Here are some of the key features and benefits of a slow cooker:
1. Low and Slow Cooking Method
The slow cooker operates at low temperatures, usually between 170°F to 300°F (77°C to 149°C), over several hours. This ensures gentle and even cooking that retains moisture and flavors.
2. Easy and Convenient
One of the most significant advantages of a slow cooker is its “set-it-and-forget-it” nature. Once you place the ingredients inside and choose the desired settings, you can leave it unattended for hours while it does its job. You don’t have to worry about checking it constantly or fear it’d burn.
3. Versatility of Dishes
Slow cookers are excellent for soups, stews, roasts, chili, and other hearty dishes. They can handle a variety of ingredients and are perfect if you are looking to get into meal prepping.
4. Energy-efficient and More Environmentally Friendly
Slow cookers use very little electricity. Therefore, they are energy-efficient and better for the environment. For example, regular crock pots use about 75 to 150 watts on low and 150 to 210 watts on high. So, it consumes about the same electricity as a light bulb.
5. Ideal for Home Uses
The slow cooker is perfect for busy individuals or families who want convenient, hands-off cooking. For dishes that take long cooking to develop rich flavors, there are not many better alternatives than slow cookers.
What is Roaster?
A roaster is a large, versatile appliance used primarily for roasting meats and poultry. Unlike slow cookers, roasters operate at higher temperatures. They work way better for browning and crisping foods.
Here are some of the key features and benefits of a roaster:
1. High-Temperature Cooking and Browning
Roasters typically operate between 300°F to 450°F (149°C to 232°C). This makes them ideal to achieve a golden-brown exterior on meats while keeping the inside moist and tender.
2. Faster Cooking
Due to the higher temperatures, roasters cook food faster than slow cookers. Therefore, they are way better if you have to budget your time, especially during the holidays.
3. Larger Capacity
It’s easier to fit a whole cut of ribeye or even whole poultry into a roaster. This makes the roaster more suited when you need to cook for a large gathering during special events.
4. Versatility
Although slow cookers are more versatile in our opinion, roasters can be pretty versatile too. Some newer models come with additional features like baking, steaming, or even slow-cooking functions. However, they tend to be more expensive than regular models.
5. Ideal for Meat Lovers
If you are someone who cooks large cuts of meat or whole poultry, or even dishes that require browning, a roaster is an ideal choice for you. It’s particularly good for social gatherings and special events.
Slow Cooker Vs Roaster: Difference Chart
Here’s a difference chart between these two if you are still confused or need a faster reading to make up your mind.
Aspect | Roaster | Slow Cooker |
Cooking Temperature | High temperature (300°F to 450°F or 149°C to 232°C) | Low temperature (170°F to 300°F or 77°C to 149°C) |
Cooking Time | Shorter cooking time | Longer cooking time |
Browning/Crisping | Yes (can achieve browning) | No (doesn’t brown food) |
Food Types | Ideal for roasting meats and poultry | Great for soups, stews, and hearty dishes |
Set-and-Forget Cooking | Requires some monitoring and adjusting | Requires minimal monitoring, can be left unattended |
Energy Efficiency | Uses more electricity compared to slow cookers | Uses very little electricity, highly energy-efficient |
Capacity | Can handle larger cuts of meat and whole poultry | Suitable for smaller cuts and portions |
Versatility | Some models may have additional functions (baking, steaming) | Primarily used for slow cooking, limited additional functions |
Frequently Asked Questions and Answers (FAQs)
Can I slow cook in a roasting pan?
While it’s not the primary purpose of a roasting pan, you can slow-cook certain dishes in one. However, be aware that roasting pans lack the low-temperature settings and long cooking durations that a dedicated slow cooker provides.
Is a roaster oven the same as a crock pot?
No, a roaster oven and a crock pot (slow cooker) are not the same. A roaster oven is designed for roasting and baking at higher temperatures, while a crock pot is used for slow cooking at lower temperatures. They serve different cooking purposes.
Final Thoughts
Ultimately, the choice depends on you. If you are looking for a kitchen appliance for meal prep, slow cooking, if you are into flavorful dishes, slow cooker is for you. However, if your diet consists of a lot of meat, you like browned meat or cook for large gatherings often, you should get a roaster. However, they tend to be a bit pricy as well as they are less environmentally friendly.
Good luck on your culinary journey, and thanks for reading.