ok to make relish and sauce with. Always used normal toms, but have seen some nice big Roma and( Beef stake) for sale.
Just wondering

korbo - 2019-02-19 11:36:00

Yes, they will be fine. You might want to add a little more vinegar to get the level of acidity you are used to with ordinary tomatoes.

davidt4 - 2019-02-19 12:59:00

No such thing as acid free tomatoes. Some varieties are less acidic but is only a small percentage less. More likely a marketing ploy.

wasgonna - 2019-02-19 16:28:00

I thought ROAMA (spg) ones were supposed to be acid free. They have been available for years.

korbo - 2019-02-19 17:02:00

Re #3
was curious about that, seems correct.
Quotes-
Before we go any further, we need to address the misnomer about No-Acid tomatoes. Simple....I don’t believe these exist but am happy to be proven wrong. We have no such variety in the 75 available in our range. A tomato is an acidic product of nature so to take this away would create something that would be very untomato-like and certainly wouldn’t taste like a tomato.

https://www.kingsseeds.co.nz/Kings+Seeds+Blog/x_post/Low-aci
d-tomatoes-00240.html

The public has been told repeatedly that the lighter colored yellow and orange tomatoes, as well as the small-fruited and newer varieties, are lower in acid than traditional, red tomatoes.
The data showed that the lighter colored and smaller tomato varieties were actually higher in acid than standard red tomato varieties. Newer varieties were not less acidic either.
The mean pH among tested varieties ranged within a narrow band, between 4.14 (most acidic) and 4.68 (least acidic). The danger threshold for botulism is 4.8.
There were higher pH outliers but these anomalies were attributed to growing location or those tomatoes being over ripe.
It is likely that yellow and orange tomato varieties were assumed to be lower in acid due to a higher sugar content (these types tend to be sweeter than traditional red tomatoes), which masks the acidity.
In conclusion, all tomatoes are acidic. Sweeter tomatoes may taste less acidic, but there really are no low acid tomatoes.
http://tomatoculture.com/the-myth-of-low-acid-tomatoes/

Edited by gpg58 at 5:36 pm, Tue 19 Feb

gpg58 - 2019-02-19 17:27:00

wasgonna wrote:

No such thing as acid free tomatoes. Some varieties are less acidic but is only a small percentage less. More likely a marketing ploy.

Yep, I'd agree with that.
I was looking for preserve recipes to deal with my tomato glut & I noticed that one or two stated 'not suitable for acid free tomatoes', but I've used a combination of tomatoes...whatever I could find to make up the weight for whatever I wanted to make & no problem.
If I was using all so called 'acid free' tomatoes, I'd take davidt4's advice @ # 4.

samanya - 2019-02-19 18:41:00

correct me ....but some tinned tomatoes are definatly oval shaped and classed as acid free....Rather interesting the comments...
Sooooo...why are the tomatoes oval and advertised as acid free????

korbo - 2019-02-19 21:10:00

False advertising.

wasgonna - 2019-02-20 21:35:00