Is Peanut Butter Safe to Eat?


One of the things I love about the internet is having so much information at my finger tips.

One of the things that drives me crazy about the internet is knowing which information to trust.

Interesting times.

The other day I got this question from one of my star students at the Stonesoup Virtual Cookery School


I’m curious your thoughts on peanut butter.

I’ve heard a lot against it (aflatoxin, rancidity) but seems maybe those concerns are overblown the more I read.

Carol from Pittsburg

Is Peanut Butter Safe to Eat?

It’s a great question.

Aflatoxin concern is real.

Peanuts are susceptible to mould growth during storage which produces toxins absorbed by the nuts.

Small exposure to aflatoxin generally isn’t problematic to people. However exposure over long periods of time (think years) has been linked to cancer.

Particularly liver cancer.

Luckuly alfatoxin is easy to detect in a lab. And this is a well known problem.

So I buy my peanut butter from a specialist who I trust to test their peanuts for aflatoxin.

Rancidity is the natural result of oils ageing.

It’s easy to detect yourself.

Just smell your peanut butter. If the aroma is fresh and peanutty, you’re all good.

If there’s anything ‘funky’ or ‘off’, rancidity is the most likely culprit. So scrap that jar and get a fresh one.

Again a good quality supplier makes all the difference.

Some Favourite Peanut Butter Recipes

+ Cauliflower, Chicken & Peanut Curry
+ Massaman Curry
+ Hugh’s Sweet Potato Gratin
+ Green Curry of Broccoli Soup
+ Crunchy Peanut Butter Granola
+ Chocolate Peanut Butter Swirl Brownies
+ Home Made Peanut Butter
+ Peanut Butter Coconut Craving-Killer
+ Peanut Butter Chocolate Fudge
+ Peanut Butter Cheesecake
+ Peanut Butter Ganache
+ See the Peanut Butter Archives.

Have fun in the kitchen and enjoy your peanut butter!

With love,
Jules x

ps. Tired of deciding what to cook?

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It’s a weekly meal planning service where someone else comes up with the ideas for what to have for dinner.

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