A PPT in PDF form of how we made tomato sauce and canned it.
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1. 1. Buy Roma Roma Pomodoro (tomatoes) are the fruit of choice
for many recipes. These oblong tomatoes have more esh than your
regular, garden variety tomatoes.
2. 2. Go Home(ah) Load up your panniers and pedal your tomatoes
home. Stick to your 100 mile diet by not adding to greenhouse gases
on the way home from the market. Burn o some calories in advance of
all the pasta youre going to eat.
3. 3. Sortem Layout out the tomatoes on a tarp. Pick out the
ripest ones and put the rest aside to sit in the sun for a day.
Your sauce will taste best if made from the ripe ones.
4. 4. Washem Soak the tomatoes in water and some sort of
vegetable soap to wash o any dirt and pesticides. Rinse well to
avoid foamy spaghetti. An old kitchen sink works well for this, but
a big colander will do.
5. 5. Cutem Up Cut the washed tomatoes into quarters. Be sure
to cut out any stems and white esh. (Thanks to Patrick who helped
us with this step).
6. 6. Cookem Put a bit of olive oil in a big stock pot. Add in
the cut tomatoes in small batches. Cook until they release their
juice and you have a nice soupy mash.
7. 7. Strainem Remove the excess liquid by ltering the mash
through a sheet or cheesecloth. Bens parents taught us to use a
half-bushel basket with a sheet in side. Capture the liquid in a
pot. It makes great soup stock.
8. 8. Soups On Straining the mash removes almost half of the
liquid. No point canning water! It makes great soup stock. Share
with your neighbours!
9. 10. Extrude It! An extruder separates the seeds and the
skins from the thick, pulpy sauce that you want to can. We started
with a manual, crank version, but eventually invested in an
electric model.
10. 10. Extrude it! Add the mash to the hopper at the top.
Force it into the shaft with the plunger. The engine turns an auger
that forces the mash through a cone sieve. The skins and seeds fall
out the end. The sauce comes through the sides of the cone into the
funnel and down into the pot.
11. 11. Can it! Mix the sauce with some diced onion, a few
basil leaves and a pinch of salt. Put it into clean, 1-litre mason
jars, leaving some headspace at the top. Be sure to wipe the rim.
Put new lids and screw tops on nger tight.
12. 13. Pressure Can It! For years, we used the water
processing method in which you boil the jars under water for 40
minutes. The air inside the jars escapes through the nger tightened
lids, leaving behind a vacuum that bacteria abhor. Since modern
tomatoes tend to have low acidity, youre better o using a pressure
canner to ensure that the jars are processed well.
13. 14. Repeat! Yesterday, we processed 3 bushels of tomatoes
into about 32 litres of thick tomato sauce. Since were sharing that
batch with Patrick & Chantal, well probably need to do another
2 bushels to see us through the winter.