When someone asks what you want for Christmas and you can’t think of anything, you at least know you don’t want commercial preserves, right? Those store-bought jams and relishes are never as good as the ones you make yourself, even if they came from the cutest little shop in someone’s favorite vacation spot. To avoid collecting jars that will sit unopened in your pantry for months or years, try asking for empty jars instead. I mean fancy preserving jars, ones you might never buy for yourself because they cost more than Ball or Kerr jars.
Among the possibilities are jars produced by the French company Le Parfait. You probably know Le Parfait’s old-fashioned glass-lidded jars—now called, on Le Parfait’s website, Super Jars—with their rubber rings and metal clamps. I have used big jars of this type for decades for storing dry foods, and the French still use them for home canning. After the jars are pasteurized, the jars are stored with their clamps unfastened. So long as the lids stay sealed, you know your preserves are good.
I tested another Le Parfait product, the jam jars, faceted on the lower half and bearing a screw-on metal top. These jars come in various sizes—324, 385, and 645 milliliters. I used the 324-milliliter jars, which hold about 1 1/3 cups and so, I figured, might be small enough for jelly (for a good set, jelly must cool rapidly). A standard American wide-mouth funnel just fits into the top of one of these jars. The metal top screws on with short threads, as on most commercial food jars, rather than with long threads, as on a Ball jar. I like the lids displayed on the Le Parfait website—they are decorated with little green leaves and red berries—more than the ones that came with my set, which are printed with “HOME MADE” in almost psychedelic blue lettering.
Instead of boiling-water or steam processing for these jars, Le Parfait recommends “self-pasteurization,” which means turning the jam jars upside-down immediately after screwing on the lids. This practice is the norm in Europe, but the USDA frowns on it. So I processed my filled jars for ten minutes in a steam canner.
After the processed or “self-pasteurized” jam jars have cooled, it’s hard to tell whether they have sealed. But I have found that if I hold both a sealed and an unsealed jar with the edges of the lids at eye level, I am able to see the difference. The sealed lids are just slightly concave. When you remove one you hear a little popping sound.
I also tested some of Le Parfait’s Familia Wiss terrines. Also called bocals, these jars have straight sides and wide mouths, to make it easy for you to turn out your terrine (pâté without pastry) from the terrine. Available in sizes to hold 200, 350, 500, 750, 1,000, and 1,500 millimeters, these jars are different from any I’ve seen before in that each comes with both a flat lid (capsole) and a full cap (couvercle). The flat lid is much like that of a Ball or Kerr jar, but heavier and bearing a big pimple in the center. The cap, which like a Ball or Kerr band serves to keep the flat lid in place during processing, sports an inverted pimple in its center. The cap could be used on its own for refrigerator storage, but because it lacks a protective coating, as well as a sealing ring, it shouldn’t be used on its own with acid foods.
The Familia Wiss terrines identified as 500 millimeters in size on Le Parfait’s website actually come embossed as “500-539 ml,”and a fill line is marked at 1 1/8 inches from the top, as if the jars were intended for pressure canning. To my delight, I found that each of these jars hold a pint with ½ inch headspace. They are shorter and wider than Ball or Kerr pint jars; in fact, they are perfect for accommodating quartered large pears in horizontal layers.
I processed three Familia Wiss jars in a steam canner. On one lid the pimple flattened completely; on the others the pimples flattened only a bit. But all three jars sealed firmly.
Le Parfait makes a tool called a tire-rondelle for opening both Super Jars and Familia Wiss terrines. You can use the tool sideways to tug on the tongue of a Super Jar’s rubber ring, or you can poke the pointed end into the pimple on the flat lid of a Familia Wiss jar to release the vacuum. An ice pick should work as well on a Familia Wiss lid, or you can pry up the lid with an ordinary bottle opener or a table knife.
For the French, apparently, Familia Wiss jars are used primarily for terrines, and Le Parfait’s website includes terrine recipes that make my mouth water. Unfortunately, the recipes omit instructions for pressure canning; instead, you are told to process the jars in a boiling-water bath for three hours. The USDA lacks any comparable recipes from which you might derive pressure-canning times, so if you decide to try one of these recipes you’ll probably want to store your terrines in the fridge.
Here is how I canned my pears in 500-milliliter Familia Wiss jars. You might substitute any pint mason jars in this recipe.
Pears in Light Syrup with Vanilla
I used Bosc bears, but any variety should do.
If heating the pear slices in syrup seems like too much bother, you might put them cold into the jars. Heating them should soften them just enough to help them pack well in the jars, but if you’re not careful with this method you can end up with burnt fingers, mushy pears, or both.
3 inches of a vanilla bean
2 2/3 cups water
1 cup sugar
1 large or 2 small lemons
About 4 pounds (7 to 8) just-ripe pears
Wash three 500-milliliter Familia Wiss terrines (or wide-mouth pint mason jars) and the flat lids in hot, soapy water, and rinse.
Score the vanilla bean segment lengthwise, so that the seeds will escape into the syrup, and cut the segment crosswise into thirds. Put these pieces into a saucepan with the water and the sugar. Slowly heat the mixture, stirring to dissolve the sugar, while you prepare the pears.
Squeeze the lemon juice into a bowl. Peel, core, and quarter one-third of the pears. As you do so, drop the slices into the bowl and turn them gently in the lemon juice; this will keep them from browning.
When the syrup has begun to simmer, use a slotted spoon to transfer the pear slices to the syrup. Bring the syrup back to a simmer, turning the pear slices gently.
Immediately remove the pan from the heat. Pack the pear slices neatly into one of the jars along with a piece of vanilla bean, and pour syrup through a strainer to cover the pears.
Reheat the syrup as you prepare another third of the pears. Heat and pack them and cover them with syrup as before. Do the same with the last of the pears.
Cover the jars with flat lids and full caps (or mason jar bands). Process the jars in a boiling-water bath or steam canner for 20 minutes.
Makes 3 pints