It’s also a great source of vital nutrients, such together vitamins, minerals, and also healthy fats.

Because it has actually a relatively long shelf life, many human being wonder if peanut butter goes bad.

You are watching: How to tell if peanut butter is rancid

This article explains how long peanut butter commonly lasts, exactly how to call if it has actually gone bad, and also how to properly store it.


*
Share top top Pinterest
Compared with various other spreads, peanut butter usually has a long shelf life.

This is because peanut butter is high in fat and also has a relatively low moisture content, which gives unfavorable conditions for bacterial growth (1).

There are other vital factors that have the right to influence the shelf life of peanut butter.

For starters, just how it’s made plays a far-reaching role in that shelf life.

Most advertisement peanut butters use stabilizers, such together hydrogenated vegetable oils or palm oil, and preservatives choose sodium benzoate to assist extend your shelf life (2, 3).

The enhancement of stabilizers helps to prevent oil separation and improves the texture and appearance, while preservatives, including sodium benzoate, aid combat microbial growth.

Because of the enhancement of stabilizers and preservatives, commercial peanut butters may last 6–24 months in the pantry if left unopened, or 2–3 months once opened. Placing it in the refrigerator can prolong its shelf life beyond this (4).

On the other hand, commodities labeled as herbal peanut butters have to contain at the very least 90% peanuts. They have a much shorter shelf life because they typically lack preservatives and also stabilizers. However, some herbal peanut butters may contain stabilizers to prevent oil separation.

In general, herbal peanut butter without stabilizers have the right to last for number of months in the pantry unopened, or approximately a month as soon as opened. However, they may last approximately a year in the refrigerator unopened, or 3–4 months in the fridge once opened (4).

Many natural peanut butter commodities that contain just peanuts and salt state to “refrigerate ~ opening” to keep freshness.

The shelf life of organic peanut butters can vary considerably amongst brands due to the addition of different ingredients, so it’s necessary to check the best-by day on the packaging.

Powdered peanut butter is a brand-new alternative do by pressing the bulk of the herbal oils from roasted peanuts and also grinding the nuts right into a powder. Many labels state the they can last 10–12 month unopened, or 4–6 months when opened.

However, powdered peanut butter might last longer than the noted best-by day if unopened and stored in a cool, dry, dark place, such as the pantry. This is because it has less fat than regular peanut butter, which way it’s less prone to reacting through oxygen.

SUMMARY

In the pantry, commercial peanut butters might last 6–24 months unopened, or 2–3 months once opened. Natural peanut butters may last number of months unopened, or up to a month once opened. Put peanut butter in the refrigerator can prolong its shelf life.


Most packaged peanut butters have actually expiration days — also called best-by days — published on the container, i m sorry indicates just how long the product will stay fresh.

However, this labels no compulsory and don’t for sure the product’s safety. That method your peanut butter may still be safe to eat beyond its best-by day (5).

The finest ways come tell if your peanut butter has gone bad are by sight and smell.

While fresh peanut butter is naturally soft and also creamy, bad peanut butter may have actually a hard and dry texture. That may likewise have a dark brown appearance, compared with that usual irradiate tan color.

Additionally, if it smells more sharp, soapy, or bitter, it likely has gone bad.

Moreover, if your peanut butter tastes contempt sour instead of nutty, that may have actually gone negative as well.

Keep in mind the oil separation is regular for natural peanut butters due to the fact that they may absence stabilizer ingredients. It’s no a authorize that the peanut butter has gone bad.

It have the right to be more challenging to tell whether powdered peanut butter has gone bad, yet changes in smell, texture, and also taste are great indicators.

Summary

Peanut butter that has gone bad may show signs choose a adjust in structure to dry and hard; changes in aroma, consisting of a ns of aroma; and a much more sour or bitterness taste.


To ensure that your peanut butter lasts longer, it’s necessary to keep it properly.

Although the doesn’t have to be refrigerated, cold temperatures ensure that lasts longer. If you choose not to refrigerate her peanut butter, aim to save it in a cool, dark place, such as the pantry.

It’s likewise important to constantly close the jar of peanut butter tightly. Exposing peanut butter to air because that too long may reason it to go rancid faster.

Additionally, make certain to usage clean utensils when you use peanut butter. Used or dirty utensils can introduce undesirable bacteria through cross-contamination, which deserve to promote spoilage.

Powdered peanut butter should additionally be save on computer in a cool, dry, dark place, such together the pantry. If you mixed powdered peanut butter v water to make creamy peanut butter, you deserve to store this in a tightly covered container in the refrigerator for up to 48 hours.

Summary

It’s ideal to keep peanut butter in cool, dark places, such as the pantry or fridge. Make certain to handle peanut butter with clean tools to avoid cross-contamination, and also to close the jar tightly to border air exposure.


Peanut butter usually has a long shelf life.

In the pantry, commercial peanut butters may last 6–24 months unopened, or 2–3 months once opened. Herbal peanut butters absence preservatives and may last numerous months unopened, or up to a month as soon as opened.

However, particular brands of herbal peanut butter may last longer due to the enhancement of stabilizers, therefore it’s crucial to check the best-by date.

Powdered peanut butter is finest stored in a cool, dark, dry place, such together the pantry, and the best-by day states it can be stored as much as 12 months. However, the likely have the right to last longer than this, together it has actually properties that make it much less likely to go rancid.

See more: Abc Tv S How To Get Tickets To Good Morning America Gma Free Tv Show Tickets

Proper use and storage, and refrigeration, can prolong the shelf life the any kind of peanut butter considerably.

Signs the your peanut butter has gone poor include a adjust in texture to dry and also hard; transforms in aroma, consisting of a lose of aroma; and a an ext sour or bitter taste.