Will peanut butter be safe to eat a week later if you several spoonfuls out of the jar using same spoon each time then put rest back in cupboard at room temperature?

It is generally not advisable to consume peanut butter that has been left unrefrigerated at room temperature for an extended period, even if it is just a week. Here's why:

1. Risk of Spoilage: Peanut butter contains oils that can become rancid when exposed to oxygen, light, and heat. If the jar was not properly sealed or if it was frequently opened and exposed to air, the peanut butter is more susceptible to spoilage and the growth of bacteria and molds.

2. Cross-contamination: By using the same spoon each time to take out peanut butter and then putting the spoon back in the jar, you risk introducing contaminants into the jar. Any bacteria or other microorganisms present on the spoon could be transferred to the peanut butter, potentially increasing the risk of spoilage.

3. Foodborne Illness: Consuming spoiled peanut butter can lead to foodborne illness, causing symptoms such as stomach cramps, nausea, vomiting, and diarrhea. In some cases, it may also pose a health risk to individuals with weakened immune systems or underlying health conditions.

To ensure the safety of peanut butter, it's recommended to:

1. Refrigerate: After opening, keep the peanut butter refrigerated at all times. Proper refrigeration helps slow down the process of spoilage and inhibits the growth of bacteria.

2. Use a Clean Spoon: Always use a clean spoon each time you take out peanut butter from the jar. This will minimize the risk of introducing contaminants and cross-contamination.

3. Check for Spoilage: Before consuming, inspect the peanut butter for any signs of spoilage, such as a rancid odor or visible mold growth. If you notice any signs of spoilage, it's best to discard the peanut butter.

4. Expiration Date: Take note of the expiration date printed on the peanut butter jar and avoid consuming the peanut butter past that date.

By following these guidelines, you can help reduce the risk of consuming spoiled peanut butter and ensure your safety and well-being.