Joel in the Garden July 18 2013 (1)
Now, if you want these veggies to last longer than couple weeks, you're going to have to blanch them. Blanching is an important process for food preservation.
“You want to kill the enzymes. And by killing the enzymes, it won't continue to mature in the freezer,” Oehler said. “If you don't, they get an off flavor. They get tough. They get rubbery.”
First, just wash the vegetables, then chop them uniformly. Next, toss them into a boiling pot of water.
“Zucchini just takes one to two minutes and you can steam them, just so they're heated through,” Oehler said. “Small batches can even be done in the microwave.”
Once you take your produce out of the boiling water, immediately soak them in cold water.