Slow cookers and food safety (2024)

Slow cookers and food safety (1)

A slow cooker or "crock pot" is a convenient portable electric appliance popular in today's kitchens. Slow cookers have several advantages. It's "all-day cooking without looking." They are economical to operate and a great way to tenderize less expensive and tougher cuts of meat (shoulder, round, and chuck).

Is a slow cooker a safe way to cook food?

Yes, if you use them correctly. The slow cooker cooks foods slowly at a low temperature, generally between 170and 280 degreesF, over several hours. The combination of direct heat from the pot, lengthy cooking and steam, destroys bacteria making the slow cooker a safe process for cooking foods.

How much liquid do I add?

Water or liquid is necessary to create steam. When cooking meat or poultry, the water or liquid level should cover the ingredients to ensure effective heat transfer throughout the crock. Some manufacturers of slow cookers recommend adding liquid to fill the stoneware 1/2 to 3/4 full. Follow the manufacturer's recipes and directions for best results.

Slow cooker food safety reminders

  • Research conducted by USDA FSIS indicates it's safe to cook large cuts of meat and poultry in a slow cooker. Follow the manufacturer's recipes and safety guidelines.
  • Start clean.Start with clean hands, utensils surfaces and a clean cooker.
  • Thaw first.Always thaw meat or poultry before putting it into a slow cooker. If frozen pieces are used, they will not reach 140 Fquick enough and could possibly result in a foodborne illness.
  • Preheat cooker.Preheat the cooker and add hot liquids, if possible. Preheating the crock before adding ingredients or cooking on the highest setting for the first hour will ensure a rapid heat start and will shorten the time foods are in the temperature danger zone. This is highly recommended when cooking meat or poultry in a slow cooker.
  • Slow cookers and food safety (2)

    Don't cook on warm.Do not use the warm setting to cook food. It is designed to keep cooked food hot.
  • Soak and boil dried beans first.Dried beans, especially kidney, contain a natural toxin. These toxins are easily destroyed by boiling temperatures. Soak beans for 12 hours, rinseand then boil on the stove top for at least 10 minutes before adding the beans to a slow cooker.
  • Put vegetables on the bottom or sides. Vegetables cook the slowest, so place them near the heat, at the bottom and sides of the slow cooker.
  • Keep the lid on. Do not lift the lid or cover unnecessarily during the cooking cycle. Each time the lid is raised, the internal temperature drops 10 to 15 degrees and the cooking process is slowed by 30 minutes.
  • Check with food thermometer. Before taking a bite, check meat and poultry with a food thermometer to make sure it has reached a safe internal temperate to destroy bacteria.
    • Roasts: 145 to 160 F.
    • Poultry: 165 F.
    • Soups, stews, sauces: 165 F.
  • Cool properly. Do not leave cooked food to cool down in the crock. Eat immediately or place leftovers in shallow containers and refrigerate.
  • Don't reheatin aslow cooker. Do not reheat food or leftovers in a slow cooker; instead reheat on stove top or microwave (165 F or above) and transfer to slow cooker to keep warm (140 F or above).

Suzanne Driessen, Extension educatorand Glenyce Peterson-Vangsness, former Extension educator

Reviewed in 2021

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Slow cookers and food safety (2024)

FAQs

Slow cookers and food safety? ›

Yes, if you use them correctly. The slow cooker cooks foods slowly at a low temperature, generally between 170 and 280 degrees F, over several hours. The combination of direct heat from the pot, lengthy cooking and steam, destroys bacteria making the slow cooker a safe process for cooking foods.

Is slow cooker safe for food? ›

The direct heat from the pot, lengthy cooking and steam created within the tightly-covered container combine to destroy bacteria and make the slow cooker a safe process for cooking foods.

What foods should not go in a slow cooker? ›

10 Foods You Should Never Make in a Slow Cooker
  1. Raw Meat.
  2. Seafood.
  3. Pasta.
  4. Rice.
  5. Delicate Vegetables.
  6. Boneless Skinless Chicken Breasts.
  7. Dairy.
  8. Wine and Other Liquor.
Jan 19, 2024

How safe is it to leave a slow cooker unattended? ›

Are slow cookers safe to leave on? Yes, it's safe to leave a slow cooker on when you leave the house. The purpose of a slow cooker is to allow you to cook while you aren't home. Slow cookers simmer food slowly, killing bacteria and raising meat to the perfect internal temperature.

Can meat go bad in a slow cooker? ›

According to the U.S. Department of Agriculture (USDA), slow cookers' max temperatures generally reach between 170 and 280 degrees F (77 and 138 degrees C). That's high enough to kill most bad bacteria, but the USDA still recommends thawing all foods completely before placing them in a slow cooker.

Do slow cookers leach chemicals? ›

A crock pot can be toxic if it is made from toxic materials or use toxic glazes, colors or chemicals in any form. The different parts used in a crock pot unit must also be examined for they can leach toxins and/or release toxic off-gassing when heated.

Is it safe to eat slow cooked meat? ›

Large cuts of meat and poultry may be cooked safely in a slow cooker. However, since slow cookers are available in several sizes, check the instruction booklet for suggested sizes of meat and poultry to cook in your slow cooker.

Can I leave food in a slow cooker overnight off? ›

On some occasions, you'll want to leave food in the slow cooker to keep warm, during Thanksgiving or Christmas Dinner, for example, or any other event or holiday. While it's perfectly ok to use your crock pot in this way, try to avoid leaving food on the warming setting for more than four hours.

Is it safe to put a towel under a crockpot? ›

Set on a Flat Surface

The best place to use a crockpot is on the kitchen counter. However, any heat-safe, flat surface will also suffice. Avoid setting your slow cooker on an uneven surface, and never place it near loose fabrics, including curtains, kitchen towels, or napkins.

How long can you leave a crockpot on warm? ›

The 'Warm' setting is ONLY for keeping already-cooked food at the perfect serving temperature until mealtime. To prevent food from dipping into temperatures that aren't food-safe, you shouldn't use the 'Warm' setting for more than 4 hours.

What is the food danger zone in a slow cooker? ›

A safe slow cooker, cooks slow enough for unattended cooking, yet fast enough to keep food out of the bacterial danger zone. In the danger zone (above 40°F to below 140°F), bacteria grows very rapidly. Food left in the danger zone too long can cause food borne illness.

Why can't you put raw meat in a slow cooker? ›

Raw meat

A crockpot's gentle heat means meat will never get a chance to brown, but it's the golden colour from frying that gives it depth of flavour. If you don't want your stew to taste bland, brown the meat first, then put it in the slow cooker.

Can you put raw hamburger in a slow cooker? ›

Absolutely, which is why you should always adjust times and amounts as needed. Smaller amounts of slow cooker hamburger only need a few hours before they are done.

What are the disadvantages of a slow cooker? ›

What are the disadvantages of a slow cooker? Slow cookers only apply heat to the bottom of the crock, which cuts down on their ability to reduce liquids and brown foods, and develop flavor the same way a Dutch oven or pressure cooker can.

Do slow cookers take nutrients out of food? ›

While slow cooking does expose food to heat for an extended period, it also retains many vital nutrients.

Is slow cooking good for health? ›

The low heat used in slow cooking destroys fewer nutrients than high-heat cooking. Meat and other ingredients are also cooked more safely since any remaining bacteria are killed off by the steam and tightly sealed pot. Slow cooking is also an excellent way to cook legumes, which are a staple in many healthy diets!

Can you just throw everything into a slow cooker? ›

One of the main attractions for many people is the ease of a slow cooker, so when you're looking for recipes, avoid those that suggest a lot of pre-preparation. For many dishes, particularly soups and stews, you really can just throw all the ingredients in.

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