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LH 48: Green Beans, Botulism and Jar Label Stick’em – Oh My!

Listener Q&A

This week’s podcast and show notes summary are a little all over the place because I’m answering two separate listener questions – Both canning related.

One was about canning green beans safely (and botulism) and the other was about kitchen hacks for removing stubborn canning jar labels.

All good stuff here!

If you listen to the podcast or read below, you will learn…

  • Why you should NOT water bath non-pickled green beans
  • What causes botulism to throw a party in a canning jar
  • The role of pH in safety
  • My trick for removing stubborn jar labels with ease

Green Bean Canning Safety -

Q1: Is it safe to water bath green beans?

This is a very common question that I get every year. A lot of people want to do this because they hear it is okay to do.

But the short answer is…no. You should NOT water bath green beans. They can only be water bathed IF they are pickled.

However, it is important to understand WHY you can’t.

Aren’t Others Doing It?

Well, you might come across information on the internet saying doing this is okay. (And we all know the internet has such trustworthy info, right? Ha!)

Or you may even have a friend who swears this is a safe practice  because they have tried it and no one died.

Or you may have had a Grandmother who did this and it seemed okay way back then.

Well, that is just dandy that some people have done it without getting sick. But if done today, you are may not be so lucky.

Now, I could explain all the science-y and horticulture reasons that some people have gotten away with it in the past (I have been known to use my engineering degree with my hort background to totally geek out on the science/physics behind canning). But I’m not going to do that here because when I do, I find people try to use that info to “game the system” and cut corners so THEY can water bath can green beans.

And that would be foolish.

Don’t try to cut corners in canning. When dealing with foods like green beans, you should not try to cut corners.

(And for the record…I DO tell my Canning Academy students the full scope on why people sometimes got away with it in the past. But only because they’ve had all the safety training to know all the ins & outs of where they can experiment and where they can’t. They know better than to “game the system”.)

You see, there is a real risk in water bathing straight green beans. And the risk is botulism – a serious food born illness that can be deadly.

So, don’t water bath green beans UNLESS you are pickling them with a vinegar brine.

And here’s why…

pH and Safety:

There is a bacterium (clostridium botulinum) that is commonly found all over the place – including garden soil. A spore from this bacterium will grow and thrive when it sealed up inside an airtight container that also happens to be a low acid environment.

Well, a canning jar is an air tight container and green beans are a low acid food.

So in other words, those beans sitting in a jar of water are creating the exact environment where botulism spores loves to throw a party. And when even a single spore throws a party, it creates the botulism toxin that can make people ill or even die.

And where’s the fun in that?!

So…you can only water bath can green beans if you pickle them in a vinegar brine. That vinegar will create a super high acid environment that keeps the spore from doing anything dangerous.

The Bottom Line:

The bottom line is that although there are some safe areas to play and experiment when canning, there are other areas where you really, truly need to play by the rules.

Green bean canning is one area where you should just play by the rules.


Q2: Stubborn Jar Labels

I got this question from reader Amy:

Theresa, all of my canning jars are making their way back home to me from family and friends, ready to be filled up again this canning season. But they are coming back with the labels stubbornly stuck on, having been sent through the dishwasher plastering the labels to the jars.

Do you have a good method for removing really stuck on old labels? I have tried scrubbing them with soap and hot water as well as applying rubbing alcohol. Both methods are really time-consuming & I hoped maybe you had an easier way. Those labels were so cute when I printed them. 🙂

 Yes, Amy – I DO have a little trick up my sleeve when it comes to stubborn label residue!

First, I always try just soaking the jars in warm soapy water, as you did. (I use Dawn Dishwashing Liquid) And many times this is all it takes.

But as you stated, there are many times that water does NOT work on some label’s glue.

So in cases such as yours, I break out my favorite kitchen hack…

Coconut Oil & Baking Soda:

This method is AWESOME! No joke.

The coconut oil lifts up the adhesive and the baking soda gives you grit to when you rub.

It works best on a dry label. So if you have already soaked in water, let the label dry before trying this.


  1. Mix equal parts coconut oil and baking soda into a paste. A spoonful of each is enough.
  2. Cover the label area with the paste and let is sit for 15 minutes.
  3. Use a sponge, paper towel or a green scrubbie sponge to wipe away the residue. It usually wipes right off 9 out of 10 times.
  4. If the label was really thick, you may need to do a second application to get the lower layer off. Just slap it on, wait another 10-15 min and wipe away. You should not have to scrub it other than a gentle rub. The paste does all the work.


Other Oils:

I decided to do an experiment to see if there’s something special about the coconut oil vs. other oils.

I’ve always used coconut oil.

But since not everyone has that in their cupboard, I thought I would try other oils. I was unsure if they would have the same results.

Well…I’m happy to report that I got equal results with:

  • Vegetable shortening mixed with baking soda
  • Olive oil mixed with baking soda

So, if you don’t have any coconut oil, give one of those a try! Good luck!


Canning Academy:

Canning Academy - Online Canning Course -

If you want to craft your own artisan preserves and capture the seasons in a jar, join me this spring.

I’ll teach you the skills AND the reasons behind the techniques in canning, so you’ll have complete confidence with every batch you make.

This way, you’ll know that the jars you pull off the shelf are safe for your family to eat.

Next week, I’m opening the doors to my Canning Academy  for the Spring session – This is canning training at your own pace but with lifetime access.

I only open the doors a few times a year. So, this will be it for a while.

CLICK HERE to be notified when that happens. I’ll send you the links with all the details next week, so you can check it out.


Resources & Links Mentioned:

Canning Academy – the doors are opening at the end of this month for the Spring session!


Click here for the Full transcript for Episode #48


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About the Author:

Theresa Loe is the founder of Living Homegrown® and the Canning Academy®. For 9 years, Theresa was the Co-Executive Producer & Canning Expert on the national PBS gardening series, Growing A Greener World®. Theresa homesteads on just 1/10th of an acre in Los Angeles with her husband, two sons and several disorderly but totally adorable chickens. Learn more about Living Homegrown here and about the Canning Academy here.