Kayla
not only brought me a big bag of green apples, she also copied
instructions out of a book (The Big Book of Preserving the Harvest) for turning those apples into
pectin. I mostly followed that recipe, which amounts to
extracting the juices from the apples in two parts. Here's
how....
First, I rinsed the
apples and quartered them, removing any really rotten spots, but
leaving cores, skins, and small dark spots in. I covered the
apples with water, brought them to a boil, then simmered for 15
minutes.
The next step is to
strain the apple pulp through cheese cloth, but I didn't have any
on hand. Luckily, the internet had a solution --- use an old
t-shirt instead. I had to double up the t-shirt so that
apple bits wouldn't squirt through the large holes that had
relegated the shirt to the rag-bag, but the double thickness didn't
seem to be a problem. I put the shirt on top of a steamer,
the steamer on top of the pot that fits beneath it, and the apple
pulp in the shirt, then waited about ten minutes for the juices to
ooze out.
Next, the author
recommends putting the apple pulp back in the pot, covering it
with water again, and simmering for another 15 minutes to get yet
more pectin out. At the end of that period, you're supposed
to remove the apple mixture from the heat and let it stand for ten
minutes before straining again. Since this second time
around is the last strain, you'll want to squeeze everything you
can out of the apple pulp, which means waiting until the contents
are cool enough not to burn your hands.
The author says
you'll harvest a quart of juice for each pound of apples you
started with, but I used less water for the second round of
boiling (just covering the pulp) and instead ended up with closer
to a pint of juice per pound of apple. A quart of the less
concentrated apple stock is supposed to be equivalent to half a
bottle (3 ounces) of store-bought liquid pectin.
I'll tell you more
about my first attempt to jam with this homemade pectin later, but
I wanted to close by mentioning other recipes I've seen for
extracting pectin from apples. One recipe recommends cooking
your apples for several hours, which would presumably concentrate
the pectin (although I thought I'd read that extended cooking
damages pectin). Another recipe simply calls for adding
apples with the other fruit while making jam instead of extracting
the pectin first --- in this case, it's recommended to put the
skins and pits in a cheesecloth bag to simmer with the jam then be
removed at the end, while the apple pulp is included with the
other fruit.
I'd be curious to
hear from anyone else who's experimented with using green apples
(or other non-store-bought components) to make your own
pectin. Please comment and share your experiences!
I've been doing a version of this for years. Until recently I've had to buy apples but my process is: Acquire about a case of apples and about 6 to 8 gallons of blackberries. Cook and juice the blackberries, freeze the juice. Peel and core the apples, wash the flesh with lemon juice and pack in the fridge. Cover the peels with water and simmer for an hour then strain through a jelly bag, refrigerate the pectin. Make and can apple butter. Make and can blackberry jelly. Last year I got about 50lb of free apples and 8 gallons of berries and that netted me 14 pints of apple butter and 27 pints of jelly.