"Discover Cooking, Discuss Life."

Go Back   Discuss Cooking - Cooking Forums > General Cooking Information > Farm to Table > Canning and Preserving
Click Here to Login
Thread Tools Display Modes
Old 04-23-2020, 12:16 PM   #1
Assistant Cook
Join Date: Apr 2020
Location: boston
Posts: 2
Commercial version of pressure canning

Hi. I have a food product I'd like to commercialize (i.e. sell in grocery stores). I gather that for home preservation, it would need to be pressure canned, because it's a low-acid food. I approached a commercial co-packer to ask if they offer pressure canning and he said it was not widely available, which struck me as strange. How are low acid foods you find in grocery shops canned? Do the commercial canners have a different name for pressure canning? Or do they use a different process? Thanks! Mike

Mike Waters is offline   Reply With Quote
Old 04-23-2020, 01:24 PM   #2
Sous Chef
Join Date: Apr 2011
Posts: 707
commercially they use what is technically an autoclave.
big container with dogged doors into which live steam is injected.
one can superheat steam (i.e. raise it's temp _way_ beyond the boiling point)
which is how they get the temp needed to sterilize skid loads of canned goods.

since residential steam-superheaters are hard to come by, one uses a small pressure canner.
dcSaute is offline   Reply With Quote
Old 04-23-2020, 02:16 PM   #3
Assistant Cook
Join Date: Apr 2020
Location: boston
Posts: 2
Wow. Thanks! And do you know if they run this process with glass containers as well as metal cans?
Mike Waters is offline   Reply With Quote
Old 04-23-2020, 02:40 PM   #4
Chef Extraordinaire
taxlady's Avatar
Join Date: Sep 2010
Location: near Montreal, Quebec
Posts: 25,017
Send a message via Skype™ to taxlady
They must do it with jars as well. There are low acid foods sold in jars and if they weren't heated to temperatures that require pressure, they wouldn't be safe from botulism.

Commercially they may refer to the device to get that kind of pressure as an autoclave rather than as pressure canning. But, it's basically the same thing. A home pressure canner is a form of autoclave.
May you live as long as you wish and love as long as you live.
Robert A. Heinlein
taxlady is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 12:14 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.