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How to Make Tomato Paste |
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Effigy
Chef Joined: 17 June 2013 Location: New Zealand Status: Offline Points: 633 |
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Posted: 06 March 2016 at 23:02 |
I promised this a few months back. Well I harvested the bulk of my tomatoes on the weekend so off we go... How to make tomato paste: Some of these steps may seem unnecessary, please bear in mind that I am writing this primarily for my nineteen-year-old son who has just moved into his first flat. Clear and scrub the bench and sinks. Use San Marzano, Roma or Amish Paste type variety. Commonly known as ‘low acid’ here in NZ. These are 'Roma'. I was late planting so rather than sow seed I bought large well established plants from outside the supermarket. I love that our supermarket sells organic seedlings. Even if not my preferred choice of San Marzano, the Romas performed well. Now fill and boil your kettle. While that is happening, fill the sparkly clean sinks. The smaller one with hot water to heat the steel. The larger one with cold water. Put your tomatoes into the hot water, then let most of the water out. Use a fork to lift the plug if the water is too hot for your hands. Or put on a rubber glove. Now pour the boiling water from the kettle over the tomatoes…
After 20-30 seconds transfer your tomatoes to the cold bath with a slotted draining spoon. The tomato skins will now slide off easily. This is called blanching. Trim off the top, peel and chop the tomatoes. Put your trimmings and skins into a benchtop compost bucket. Put your tomatoes into this pan. Clean down the bench and board. You should have a scrap bowl of skins and trimmings and a pot of chopped tomatoes. Nice and clean. Put the pan on a medium heat and bring to a steady, slow
simmer, stirring regularly. Use a wooden spoon. Stir occasionally to prevent the chopped tomatoes from sticking to the base of the pan. Cook for about 40 - 60 minutes or until the fruit is broken down and soft. Prepare a shallow baking tray. The size will depend on how much cooked pulp you have. You want to get an even thin layer no more than 10mm deep. Drizzle a small amount of EVO in and spread out evenly with your fingers. Now pour your pulp through a fine sieve into the tray. If you have a food mouli even better. I don’t - so a sieve it is. With the back of a soft spatula or spoon gently push the paste through the sieve…
… until all that you have left is seeds and fibres. Scrape off the back of the sieve and pick any stray seeds outof the tray… Shake the tray gently to get a smooth even layer. Put the tray into the centre of a low temperature oven, around 90 –
95°C. (Not over boiling 100°C.) This process can take a few hours so keep checking. You are slow roasting
and evaporating not cooking. To avoid a tough skin forming you will need to mix and spread the paste a number of times as follows. After the first hour the paste
should be thickening ... ... and just starting to pull away from the sides. With a spatula or scraper pull the paste together, mix and re-spread into an even layer. Ensure there are no thin areas that could cook faster or burn. Repeat this process
every 30 – 35 minutes until the paste is thick and spreadable. On the last bake
put your washed, clean jar into the oven with the paste. After you remove the paste turn the oven up to 110°C to complete the sterilisation of the jar, remove the jar as soon as the temperature indicator goes out, usually 3-4 minutes. Spoon your paste into the sterilised jar, Try not to eat it all. Smooth the surface and cover with a thin layer of EVO. Store in the refrigerator. 1.2 kilos of roma tomatoes made 120ml of paste. |
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Resident Peasant
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HistoricFoodie
Admin Group Joined: 21 February 2012 Location: Kentucky Status: Offline Points: 4940 |
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Wonderful tutorial, Anne. And really great pix. Thanks for posting.
I'm intrigued over y'all calling these varieties "low acid." In the US, they tend to use that term for yellow tomatoes. In point of fact, all tomatoes contain the same level of acid. What varies is the amount of sugar. Sweeter tomatoes cover up the acid taste. But it's still there. This is why we can can (jar) tomatoes just using a boiling water bath. Their acid content keeps the pH levels on the safe side. |
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gonefishin
Master Chef Joined: 20 September 2012 Status: Offline Points: 1778 |
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Nice Anne! Great tutorial...I'm sure this will come in handy during tomato season
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Enjoy The Food!
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Effigy
Chef Joined: 17 June 2013 Location: New Zealand Status: Offline Points: 633 |
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I know Brook. It is a terminology that arrived in the 1970's when sweeter, drop-shaped red tomatoes first caught on with gardeners and became popular with home cooks, the term stuck. Prior to that there was not alot of choice here in the antipodes. Here is a nice little explanation, I am no botanist but this little page reads well. We have had access to Yellow varieties for about 10 years now, but they are still not common. I expect It will take some TV star foodie to make them 'fashionable'. They also don't seem to do well in our humid summers being weak to fungus, blight and psyllids. As an aside, the first tomato paste I ever made was from yellow cherry tomatoes, I had buckets of them one year and it seemed a good way to experiment with a new process. The paste wasn't a nice colour but had good flavour. I still grow that seed every year - my strain is vigorous and not weak. Sadly I dont recall where I got it or whats its true name is. Purple, and weird shapes are new novelties. I have my San Marzano seed for next season lined up, and a new garden bed planned for them - I have discovered I have to rotate my beds on a three year cycle to minimise fungal diseases since I refuse to spray. |
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Hoser
Admin Group Joined: 06 February 2010 Location: Cumberland, RI Status: Offline Points: 3454 |
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Outstanding post Anne....that is one area of tomato preservation I have never ventured into, but you make it seem quite easy with that great tutorial.
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Go ahead...play with your food!
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Effigy
Chef Joined: 17 June 2013 Location: New Zealand Status: Offline Points: 633 |
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Oh it is! Just time consuming. I think a day long tomato preserving day - pasata/paste/sauce/relish and wood fired pizza gathering would be the way to go. |
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Resident Peasant
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TasunkaWitko
Admin Group Joined: 25 January 2010 Location: Chinook, MT Status: Offline Points: 9356 |
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Over two years later, I just now discovered this! My heartfelt thanks to Anne for taking the time to create and post it.
We didn't get too many Romas or San Maraznos this year (only a couple of each ), but I will plant more next year and see if I can give this a try. |
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Margi Cintrano
Master Chef Joined: 03 February 2012 Location: Spain Status: Offline Points: 6357 |
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Definitely a to do !!! This would be great as I make alot of tomato sauces, as I love Pasta. Thank you for posting.
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Volamos a Mediterraneo, un paraiso que conquista su gente u su cocina.
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kenmiller
Scullery Servant Joined: 13 May 2019 Location: edinburgh Status: Offline Points: 17 |
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You can add red chilies and tamarind paste to enhance the flavor.
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