The recipe is simple enough, but I wanted the fermentation process to be just as simple.
Normally fermented pickles are done in a crock or glass container with a weight on top to keep the contents below the brine level. And then you have mold and scum that needs to be occasionally and regularly removed. This is not a nice task, and rather off-putting for some.
Another common practice is to use a large plastic bag filled with additional brine as a weight and a seal against mold and scum. But it doesn’t always work and can spring a leak.
The method I like best is to use an air lock to keep out the exchange of air during fermentation. Off gassing is allowed by the air lock during fermentation while maintaining an air seal, thus eliminating almost all mold/scum growth.
To begin with, you will need the right equipment. Any size jar will work, just adjust the recipe to fill it. But the jar cap is not typical. I made the air lock cap by purchasing a simple inexpensive air lock from a beer and wine making store. It cost less than $1. Then I fitted it to a standard jar lid by drilling a hole and sealing the air lock into the hole with silicone caulking. I’ve made several of these for different size jar lids, regular and wide-mouth. You will also need a small weight to keep the beets submerged in the brine. We went weight hunting at a local re-sale shop and found small round glass coasters that just fit into my jars. The weight has to be made of materials that are not reactive with the brine. Glass works great. Marble, and the previous rock, started to dissolve in the brine.
My recipe is based on the basic Half-Sour Brine recipe from Joy of Pickling by Linda Ziedrich, with a couple of added ingredients.
Half-sour pickles are not pickles stopped half way through the process. They are pickles that are fermented in lower salt brine.
Classic full sour fermented pickles are fermented in a brine of 5 to 8 percent salt to water ratio by weight. Half-sour pickles are fermented in a 3.5 percent salt brine.
Half-sour pickles also do not take as long to ferment as full sour pickles. These beets will be ready to eat after about 2 weeks in a dark location at room temperature.