Ask a Question
Notify Me On Question Update
Email this Question
I understand that Ace 55 tomatoes are low in acid. Is it unwise to use them for canning even if Lemon Juice is added?
Rate This FAQ
In the 1980's several researchers studied the effects of cultivars on final acidity of canned tomatoes. Essentially, they found that the cultivar (even ones described as "low acid") did not appreciably affect the final pH when USDA recommendations to add lemon juice or citric acid are followed.
So, the short answer is that it is safe to use the Ace 55 cultivar (or other "low acid" tomato cultivars) as long as the standard USDA recommendation for adding acid is followed:
Acidification: To ensure safe acidity in whole, crushed, or juiced tomatoes, add two tablespoons of bottled lemon juice or 1/2 teaspoon of citric acid per quart of tomatoes. For pints, use one tablespoon bottled lemon juice or 1/4 teaspoon citric acid. Acid can be added directly to the jars before filling with product. Add sugar to offset acid taste, if desired. Four tablespoons of a 5 percent acidity vinegar per quart may be used instead of lemon juice or citric acid. However, vinegar may cause undesirable flavor changes.
Acidification reference - USDA Complete Guide to Home Canning. http://www.uga.edu/nchfp/how
THOMAS J. MONTVILLE, LUCILLE K. CONWAY, and GERALD M. SAPERS. (1983) Inherent Variability in the Efficacy of the USDA Raw-Pack Process for Home-Canned Tomatoes. Journal of Food Science 48:6, 1591–1593
S. R. DRAKE and L. G. PRICE. (1982) pH AND QUALITY OF HOME-CANNED TOMATO-VEGETABLE MIXTURES1. Journal of Food Quality 5:2, 145–153
G. M. SAPERS, J. G. PHILLIPS, F. B. TALLEY, O. PANASIUK and J. CARRE. (1978) ACIDULATION OF HOME CANNED TOMATOES. Journal of Food Science 43:4, 1049–1052
Submit Your Suggestion
Other Questions In This Topic
- When can I cut back my tulips and other spring bulbs?
- I have a climbing rose that I love and would like to take a cutting and start a new plant. What is the best way to do that?
- I live in Dayton,Id. I seem to have a lot of trouble with blossom end rot on my tomatoes. What could I be doing wrong? To much water not enough or wrong fertilizer? Need suggestions.
- Do you have tips for growing cauliflower and celery?
- I wanted to mail order some flowers to plant. Is the end of October too late to plant flowers?
- When should I spray my apple and apricat trees to prevent worms in the fruit? What product should I use? I planted a plum tree last fall, what should I do for it now?
- How do I know when to cover tomatoes so the do not freeze?
- Can I grow strawberries in pots? Will they survive winter in pots? Will they produce if they only get afternoon sun? Where can I learn more on this topic?