Canning…Pressure or No Pressure?
go.ncsu.edu/readext?1011509
en Español / em Português
El inglés es el idioma de control de esta página. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.
Al hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. NC State Extension no garantiza la exactitud del texto traducido. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.
Português
Inglês é o idioma de controle desta página. Na medida que haja algum conflito entre o texto original em Inglês e a tradução, o Inglês prevalece.
Ao clicar no link de tradução, um serviço gratuito de tradução será ativado para converter a página para o Português. Como em qualquer tradução pela internet, a conversão não é sensivel ao contexto e pode não ocorrer a tradução para o significado orginal. O serviço de Extensão da Carolina do Norte (NC State Extension) não garante a exatidão do texto traduzido. Por favor, observe que algumas funções ou serviços podem não funcionar como esperado após a tradução.
English
English is the controlling language of this page. To the extent there is any conflict between the English text and the translation, English controls.
Clicking on the translation link activates a free translation service to convert the page to Spanish. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning. NC State Extension does not guarantee the accuracy of the translated text. Please note that some applications and/or services may not function as expected when translated.
Collapse ▲Canning season is here and there are tons or unreliable resources out there. Unfortunately, grandma can be one of those sources along with TikTok! I know we can learn a lot from both, but when it comes to food safety, we should make sure we are getting our information from trusted, research based sources. Take a look at the webiste for The National Center For Home Food Preservation to learn the safe ways to preserve food at home.
All the time I hear about people water bath canning their green beans or dry canning them in the oven…this is very dangerous! The only safe and acceptable way to can low acid foods like most vegetables is to pressure can them.
According to the website, “The Clostridium botulinum microorganism is the main reason pressure canning is necessary. Though the bacterial cells are killed at boiling temperatures, the spores they form can withstand very long boiling. In the soils, these bacteria are naturally found in the spore form. The spores grow out well in moist, low-acid foods in the absence of air, such as in canned low acid foods (vegetables and meats). When this happens, the spores change to growing bacterial cells which produce the deadly botulinum toxin (poison). This growth and toxin formation can occur without any noticeable signs of spoilage in the sealed jar. These spores can be destroyed by canning the food at a temperature of at least 240°F. This temperature is above the 212°F. boiling point of water, so it can only be reached in a pressure canner at the appropriate pressure (10 pounds at sea level).”
https://nchfp.uga.edu/papers/UGA_Publications/uga_can_veg.pdf
The only foods that are safe to can with the boiling water method are high acid foods such as fruits and tomatoes as well as foods with acids added to them like salsa and pickles. Speaking of salsa, make sure you are following an approved recipe when canning because altering the ingredients on your own can mess up the pH and make an item less acidic, thus increasing your risk for botulism and other sicknesses.
So, if you find yourself with an abundance of fresh veggies this summer, make sure you are canning them the correct way. If you have any questions, refer to the website above or contact the Rutherford County Extension Office.