How to Freeze Food in Canning Jars

Canning jars are the best way I know to avoid using plastic when freezing foods. You’ll want to use wide mouthed canning jars like the one above, that come in pint and half pint sizes. Don’t use jars with shoulders–these jars will break due to the expansion that happens when food is frozen.

Kerr and Ball jars are marked with a freeze fill line that’s about an inch below the rim. Don’t put food you intend to freeze above this line.

Avoiding plastic lids is more difficult. Two piece Ball lids have a BPA coating (which, I’ve heard that they are considering phasing out). I suppose you could use a BPA-free Tattler lid, though I haven’t tried them. For freezing I use food grade plastic lids sold by Ball. Food is not in contact with the lid, so I’m not too concerned about the plastic, though I understand that some people won’t agree. At least the lids are more easily reused than ziplock bags. It looks like Ball now has BPA free lids.

But jars won’t work for freezing a pork chop–see an interesting thread on Chowhound about this issue that Root Simple reader Peter Shirley alerted me to. Long story short: home freezing is a product of the post WWII era of plastics and refrigeration, so there’s not a lot of alternatives other than the jar option and less than optimal aluminum foil and heavy paper. It’s hard to beat the moisture retaining and freezer burn excluding properties of plastics. The plastic-free meat freezing alternative is to bring back the corner butcher shop and buy fresh.

Freezing Meat With Freezer Paper

A good question came in on Friday’s post about freezing fruits and vegetables about how to freeze meat products without using plastic bags. I don’t know of a way to avoid plastic with meat products, but you can use freezer paper instead of ziplock bags. The University of Georgia Extension Service has a handy info sheet on how to wrap meat with freezer paper: Freezing Animal Products.

Correction: an earlier version of this post was entitled “How to Freeze Meat Without Using Plastic.” I had forgotten that freezer paper is coated with plastic. You can use glass canning jars to freeze (just don’t use a jar with a shoulder). While jars are a great way to freeze soups and stews, they are not suitable for cuts of meat. If you are aware of a way to freeze cuts of meat without plastic, please leave a comment.

How To Freeze Fruits and Vegetables

Photo by Flickr user leibolmai

Freezing foods is just about the most boring food preservation method. It’s also the easiest and best way to preserve nutrients. But, when it comes to freezing fresh vegetables from the garden there is one important step: blanching. Blanching slows down enzymatic activity that can deteriorate the quality of what you freeze. How much to blanch depends on the vegetable in question. Thankfully there’s a handy publication from Oregon State University, Freezing Fruits and Vegetables, that covers blanching times and many of the other particulars in freezing foods.

One thing not covered in that pamphlet is that some foods like berries, green beans, peas, diced onions, whole-kernel corn etc are more convenient to cook with if you can just pour them out of a freezer bag without having to break them out of a solid mass. To do this you’ll individually quick freeze IQF them. To IQF:

  1. Wash, blanch (veggies) and cool .
  2. Spread in one layer on a cookie sheet and place in the freezer for four to six hours.
  3. Pack in sealed containers or in freezer bags.
  4. Label with date to avoid freezer mystery bag phenomenon.

Now when the zombie apocalypse arrives and everything goes Beyond Thunderdome, freezing will not be the best option (unless, like Tina Turner, we figure out how to turn pig waste into propane to power our refrigerators). But I digress.

Nasturtium Powder

Around this time of year Nasturtium becomes a kind of massive monocrop in our yard. We’re always trying to figure out uses for it. Of course it does well in salads, both the greens and the flowers, and we’ve made capers of the pods. Also, the flowers make a particularly beautiful pesto. But this year, inspired by the culinary experiments of forager Pascal Baudar and his partner Mia Wasilevich (friend them in Facebook if you want a daily dose of foraging greatness) I decided to make a nasturtium powder. It’s simple:

  1. Dry the leaves. Here’s a fast way: take a bunch of nasturtium leaves and spread them in a single layer between two paper towels. Microwave for two minutes.  Or use more conventional methods. Just don’t let them get so dry they lose color. (Important note from Mrs. Homegrown: Careful with this microwave trick! It’s a new one for us. It worked perfectly for Erik when he dried a whole bunch of leaves, but today I tried to dry just one leaf, a celery leaf, as an experiment and it burst into flame after about 30 seconds. Scary!!!!! We think it success has to do with mass and moisture: lots of leaves, not just one.)
  2. Put the dried leaves in a spice mill or coffee grinder and pulse until ground.

Think of nasturtium dust as a kind of zombie apocalypse pepper replacement. Or as a salad dressing ingredient. It is surprisingly tasty–better than fresh nasturtium, and without that bite. It would be fantastic combined with a little good salt. We’re still trying to figure out exactly how to use this magic powder. We may just keep it on the table and sprinkle it on everything.

What do you like to use nasturtium for?

Wild Edible: Bermuda Buttercup (Oxalis pes-caprae )

Image courtesy of Wikipedia. Photo by MathKnight

It’s Bermuda buttercup season in Los Angeles. Burmuda buttercup, also known as sourgrass, soursop, African wood-sorrel and  many other names, is a member of the wood-sorrel family. It originated in the Cape region of South Africa and is now found all over California, parts of Australia and probably other places as well. Here, it comes with the rain and vanishes with the heat.

It’s a “weed” (Wikipedia describes it as a noxious weed and an invasive species) so if you look it up on the internet you’ll mostly find information on how to eradicate it. It’s true, it’s terribly persistent, because it spreads through underground bulbs. But I think its attractive–usually more attractive than whatever neglected patch of landscaping it has colonized. More importantly, it’s super tasty.

It packs a potent, lemony punch, like true sorrel, which makes it an excellent salad green, and that’s how I use it–raw, in salads. The leaves, stems and flowers are all tasty, but for salads I just use the flowers and leaves. They provide a bright, lemony note which is just wonderfully fresh and tasty with tender new lettuce–springtime in a bowl.

As its true name, Oxalis, indicates, it is high in oxalic acid (as are many more common greens, like spinach), and (mandatory warning) oxalic acid should not be consumed in enormous quantities or if your physician has warned against it for some reason. But its sour nature makes it unlikely that you could stomach enough to hurt you.

Give it a try if you haven’t yet. If this form of oxalis doesn’t grow near you, other edible wood sorrels– or naturalized true sorrel–might. Have a look around.

Note the structure: 3 hearts joined at the center, and the distinctive brown freckles on the leaves.

Oxalis pes-caprae has another use–as a dye. I’m experimenting with that this week, and will talk about the results in a future post.

Los Angeles Bread Bakers Blog

Just a short time after planting–a field of wheat sprouts in Los Angeles County.

The Los Angeles Bread Bakers, that I helped co-found along with Mark Stambler and Teresa Sitz, now has a blog: losangelesbreadbakers.blogspot.com. A big thanks to Saul Alpert-Abrams for putting it together and to Paul Morgan for blogging!

Paul has been writing about the wheat we helped plant at Maggie’s Farm in Agoura Hills, a suburb of Los Angeles on the western end of the county. It’s the second year that we’ve helped farmer Nathan Peitso with planting wheat. We got no crop last year due to either birds or not harvesting the wheat soon enough. We’re hoping for better luck this year.

Thanks largely to Mark Stambler, California has a cottage food law and Paul is also posting videos of a presentation that took place this weekend on how to get a cottage food permit in Los Angeles.

And if you’re in Southern California and interested in learning about bread baking and meeting other bread bakers feel free to join our meetup: http://www.meetup.com/Los-Angeles-Bread-Bakers/. LABB is for everyone–amateurs, pros and people who have never baked bread in their lives. If you’re not in SoCal start up your own bread meetup!

Food Storage as Art

Artist Jihyun Ryou’s work uses food storage techniques from the pre-refrigerator era in a way that’s both useful and beautiful. Her goal is to, “Try to bring your food in front of your eyes” to counteract that tendency we all have to make our refrigerators unintentional composters.

The techniques she demonstrates include:

  • Evaporation
  • Sand, both to keep vegetables vertical and to decrease humidity
  • Using the ethylene gas in apples to keep potatoes fresh

Ryou’s website is: www.savefoodfromthefridge.com

How to Cook Perfect Scrambled Eggs

How do you make perfect scrambled eggs? Two words for you: double boiler. It’s a method I learned from a book I had out from the library, Ruhlman’s Twenty: 20 Techniques 100 Recipes A Cook’s Manifesto. I can’t say that I read the rest of the book, but the double boiler egg method sure works well.

You melt some butter in a double boiler first to help keep the eggs from sticking. You can also use a pan held over (but not in) a pot of boiling water if you don’t have a double boiler (and I don’t have a double boiler). It takes longer to cook eggs this way, of course, but you get nice soft and fluffy scrambled eggs. You do have to clean the pan immediately or you will invoke the wrath of your spouse when it comes time to do the dishes. I don’t think I’ll go back to scrambling eggs in a pan ever again.

New National Center for Home Food Preservation Blog: Preserving Food at Home

Pumpkin leather. Image from the blog of the National Center for Home Food Preservation.

When I’ve got food preservation questions–about food safety or I need a reliable recipe–I go to the National Center for Home Food Preservation. The Center provides science based food preservation advice and is funded by the USDA.

They launched a blog in November, Preserving Food at Home that is now in my blog reader. Recent holiday-centric posts have covered tips on freezing leftovers, how to ship homemade foods and what to do with a pumpkin surplus as well as the dangers of pumpkin butter.

Home food preservation is very safe but, to be honest, I’ve been alarmed at a few of the questions I’ve received while interacting with the public as a Master Food Preserver. Preserving Food at Home is an important food safety resource and I’m looking forward to reading their weekly posts.

Do you have a favorite food preservation blog? Leave a comment . . .

Hoshigaki Success!

I’d estimate that one out of ten new homesteading projects succeeds. Which is why I’m especially happy that the long process of drying persimmons the Japanese way (hoshigaki) has been a big success. The white powder that looks like mold is sugar in the fruit that has risen to the surface. The result is, incidentally, very different from drying persimmons in a dehydrator (which also tastes good but has a much firmer texture–hoshigaki has the texture of a gummy bear).

It took about a month. One observation is that the persimmons that got the most sun also developed the most “frosting”.

Hoshigaki sells for upwards of $35 a pound–I just saw some at a Japanese market and they did not look as good as the ones I made. This is definitely a project I’ll be repeating next year. They would make a great gift along with some green tea.

You can read our blog post on how to make Japanese dried persimmons (hoshigaki) here.

Note from Kelly:

I thought we should say something about flavor here. They are not as sweet as I thought they might be. Which is not to say they’re not sweet, they’re just not super-sweet. They have a sort of meaty richness to them–in a strange way, they remind me a little of Fig Newtons, minus that seedy texture. The sugar dusting (sucrose powder?) is very delicate and a bit floral. I can only taste it if I touch my tongue to it.

These are traditionally served with green tea, and I have to say that tradition nailed it–that’s a perfect combo of flavors. Other than eating them ceremonially with tea, they are a very nice dried fruit and can be used any way you usually use dried fruit.