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Home made garlic oil and botulism

(31 Posts)
merlotgran Sun 05-Jan-14 16:59:27

Apparently it's not safe to make your own garlic oil. Kept at room temperature it could be a source of botulism as garlic is grown in alkaline soil where chlostridium botulinum is present.

My garlic 'bible' written by the Boswell family from the Isle of Wight Garlic Farm states that it's OK to make it in vegetable oil but NOT olive oil and it should only be stored in the fridge.

Miraculously, I haven't poisoned anyone yet but I'm debating whether to throw out this year's supply. hmm

Anne58 Thu 09-Jan-14 00:00:15

Sure it will be safe and delicious ga smile

Jess that story reminds me of the time my then boss was re-locating to head office. We had shared a lovely office, complete with sofas, own fridge etc, and he had also installed a fish tank stocked with marine type fish, rather than ordinary tropicals. The day he was leaving he took a beer from the fridge and looked a bit perplexed. He tried to open the small freezer/ice compartment but it was stuck.

He then informed me that it might be a good idea to defrost it and clear it out, and I was to be on no account alarmed by what was in there.

It was a dead sea anemone. confused

grannyactivist Wed 08-Jan-14 23:29:23

Definitely NOT a euphemism Phoenix. Bits of our pig are salted and hanging in the sauna and others are on racks slathered in salts/nitrates/herbs/pepper/spices etc. in the fridge. I'm being very brave and eating whatever the WM cooks for me and it is okayish (peppery), but every now and then I think.......what exactly is that taste? hmm

JessM Wed 08-Jan-14 20:36:21

I know what you mean ga my DS sometimes goes hunting in NZ and blithely says that someone is going to smoke some venison, or turn it into salami for him or suchlike. And I bite my lip and try not to come on all bacteria-police, paranoid division.
There was a shameful episode with venison once which did not involve preservation. When he was ill, he and his flat mate moved (before the flat mate got married and house trained so he was no help...).
I was staying with them and enquired what was in the not-plugged-in freezer in the garage. I was warned on no account to open the door. shock I felt that tackling this oubliette was above and beyond the scope of maternal duty and I never did ask what happened to that freezer and its decomposing contents.

Anne58 Tue 07-Jan-14 15:29:59

Is that a euphemism, ga ?

grannyactivist Mon 06-Jan-14 22:41:42

Oh dear me....this talk of botulism is feeding into my insecurity about my husband's home cured meat! shock

janerowena Mon 06-Jan-14 22:32:48

No, it can take a while to melt. I've looked into it a bit further and it appears that there are only three recorded cases in northern USA. So it's really rare. You would have to be extremely unlucky. I suggest you only give bottles to people you don't like. grin [makesnextyear'sxmaslistsmiley]

Deedaa Mon 06-Jan-14 22:31:01

I've read about the danger of botulism, although I've got several Italian cookery books with recipes for garlic oil and no mention of any danger. I do remember that my grandmother used to bottle all sorts of fruit, but would never bottle any sort of vegetable because she said it was dangerous.

merlotgran Mon 06-Jan-14 17:08:13

Apparently it's the anaerobic conditions in oil that's the problem and the fact there is no acidity. Onions are pickled in vinegar so I suppose that's why they're safe.

It's not so easy using oil that has been stored in the fridge either. hmm

janerowena Mon 06-Jan-14 16:42:26

Boil it first then, but I can't think it would be the same texture. What a shame. But the iranians and asians have been pickling garlic for centuries and they are fine! I eat pickled garlic that is several years old, because it grows so well here in my light sandy acidic soil that I don't take it up or thin it out, I pickle the excess cloves before they split. I have an acid soil here, so assume I am safe while I live here.

I can't help thinking the risk must be pretty low, merlotgran, so no need to feel embarrassed. After all, pickled onions and shallotts are fine aren't they? And they are the same family. Garlic is such a strong anti-bacterial agent that it seems impossible that it can't kill off a little botulism!

merlotgran Mon 06-Jan-14 14:19:24

I'm really quite relieved that most of you didn't know about if either. This all started for me on Christmas Day when DD2 was reading aloud from her book, The Mighty Bulb, which I'd given her for Christmas. When she got to the bit about home-made garlic oil and botulism all heads turned towards me as my home-made oils are often given to the family......shock

They all laughed but there was a touch of, 'Can't believe you didn't know this Mum' blush

Tegan Mon 06-Jan-14 11:52:24

Is it the same problem that you get with re heated rice, because that is treated in some way when it's used in chilled foods?

JessM Mon 06-Jan-14 11:45:29

Pickling would not kill botulinum. This is what the US health authority say:

Because botulinum toxin is destroyed by high temperatures, persons who eat home-canned foods should consider boiling the food for 10 minutes before eating it to ensure safety

Nelliemoser Mon 06-Jan-14 11:43:09

All this is bit scary! I had never heard of this before but there is a lot of information out there. Best advice is don't do this at home.

I do put cloves of garlic in the small quantity bottle of home made olive oil and balsamic vinegar salad dressing I make for home use and they often sit in the jar for several weeks. I assume the vinegar has saved me from harm so far.

Have a look at these Googled results.

anrcatalog.ucdavis.edu/pdf/7231.pdf

www.garlicpassion.com/garlic-infused-olive-oil-dont-do-it-yourself/

edis.ifas.ufl.edu/fy487

Elegran Mon 06-Jan-14 11:30:07

That is what I found when I Googled it. It has to be cooked to kill the botulism spores which could be in the raw garlic and could multiply if it is kept for too long. It is because it is dug up from the earth, where botulism spores are often lying around.

janerowena Mon 06-Jan-14 11:13:45

I think they must somehow cook the garlic. It needs some investigation.

CariGransnet (GNHQ) Mon 06-Jan-14 11:06:13

How does commercial garlic oil work? I love the stuff - but am assuming the big supermarkets must have to do something to make it safe?

janerowena Mon 06-Jan-14 10:56:19

I've been making it for years, how odd! Maybe it has to be used up quickly, in a year? I do make more pickled garlic now because in a sweetish mix they are a bit like sweeties... :-) But I have often given it as presents. No-one has died yet, so either it's OK or people haven't been using my presents. Maybe pickle the garlic, then strain and add oil? Another thing I have done is bought big olives in brine, then put them in jars with peppers, lemon and garlic and given it as gifts. Oh dear.

JessM Mon 06-Jan-14 10:34:06

Not only smooth but paralysed as well.
botulinum toxin is a brute - but has anyone ever actually died from garlic oil? Or is this a theoretical risk that someone has identified?

Elegran Mon 06-Jan-14 10:03:20

Only if you injected chunks of garlic into them, Merlot, but the lining of you digestive tract may be beautifully smooth. You may be dead too, but I think you might have noticed that.

merlotgran Mon 06-Jan-14 09:54:43

Maybe I've been giving myself Botox over the years without realising.

I'm off to examine my wrinkles grin

kittylester Mon 06-Jan-14 09:43:58

Me too phoenix - I assumed it was a Heston type of thing blush

merlotgran Mon 06-Jan-14 09:36:41

Next year I'll pickle garlic in vinegar instead. I have only ever used home made garlic oil for cooking (usually at high temps) so maybe it's salad dressings that are dangerous.

I'm about to spice up some spaghetti bolognese with home-made chilli oil so hopefully that'll be OK because chillis grow above ground.

I'll let you know!!!!!

Iam64 Mon 06-Jan-14 09:26:29

I have in the past made up salad dressing, added a bit of garlic, and used it all week, if it lasted that long. This post means I won't do that again

Enviousamerican Sun 05-Jan-14 22:01:52

received a beautiful olive oil bottle with dispenser filled with oil and garlic by a friend at Christmas. sad

Kiora Sun 05-Jan-14 21:07:29

Thanks for the info