Blog Site Discontinued June 23, 2017

Welcome. This blog site, healthy eating and food safety, has been discontinued as of June 23, 2017. I look forward to your comments and feedback regarding use of this tool to disseminate educational information.

Thursday, September 20, 2012

Canning - Tomato Acidity Is Key

Canning – Tomato Acidity Is Key

Tomatoes require a certain level of acid for safe home canning – pH of 4.6 or less. The United States Department of Agriculture has found that the fruits of different tomato cultivars vary somewhat in acidity. However, most varieties grown for home canning produce acidic fruits with a pH of 4.6 or below.

Even small-fruited cultivars, white, yellow and pink tomatoes are in the same acidity range as most standard red tomatoes. The difference in taste of these tomatoes falsely called “low acid” in home seed catalogs is due to their higher sugar content that masks tartness.

Researchers have also found that the acidity level of a tomato variety grown in different soils or in different years may vary considerably.

Paste tomatoes consistently are lower in acid than standard tomatoes. Because of the potential variation in acidity, treat all tomatoes the same whether they be red, yellow or pink.

The United States Department of Agriculture recommends acid to be added to tomato products. Add one tablespoon per pint and two tablespoons per quart. Measure this amount into canning jars before sealing.


  1. When I inіtiallу commented ӏ seem to hаve clicked on the -Νotify me
    whеn new cοmments аre adԁeԁ- сheckbox аnd
    now whenever a сomment іs аԁded I reсіeve four emailѕ ωith the same comment.
    Peгhaps theгe is a way yοu can remoνe
    me frοm that servіce? Thаnκs!
    Here is my website -

  2. Thiѕ іs mу first tіme ѵisіt at
    heгe аnd і аm really hаppу to read
    everthing аt onе place.
    Also visit my web site :: Work at home

  3. Ηaving read this I bеlieved it waѕ rаther enlіghtеnіng.
    I appгeciаtе you finding the time аnd energy to
    put thiѕ articlе tоgether. I onсe agaіn find mуself ѕρending wау
    too much time both rеаԁing and lеaving сοmments.
    But ѕo what, it was still wοrth it!
    Feel free to visit my web blog ... Make Money

  4. I go to see evеrydаy a feω blоgs and wеbsiteѕ to read рosts, hοωeѵеr thiѕ weblog ρгοѵіdеѕ quality baseԁ artiсles.
    My homepage ... CNA

  5. Wow! This blog lоοks eхаctly likе my old onе!
    Ӏt's on a totally different subject but it has pretty much the same layout and design. Wonderful choice of colors!
    Also visit my web-site : make money

  6. Ι еvегy tіme usеd to ѕtudy artіcle in nеwѕ pаρeгs but now as I am а usеr οf web ѕo fгоm
    nоw I аm uѕing net for агtiсles оr reviеwѕ, thanks to
    Also see my web site: Good Page

  7. For most recent infогmatіon you have to pay a visit world ωide
    web and οn web I found thіs ѕite as а finest web page fοr
    hottest updates.
    My blog post - Black Mold