How long will homemade mayo last in the refrigerator? Organic mayo from the supermarket seems to last a while. Is there some way to tweak the recipe to last a week if it doesn't? Or can I freeze it?
According to Sally Fallon, in "Nourishing Traditions", if you stir a tablespoon of whey into your homemade mayonnaise, and leave it out of the fridge for about 7 hours, then refrigerate it, it will last for a couple of months.
I made some kefir and strained the whey off to do exactly this - but I find that I use the mayo within a couple of DAYS always, so I don't know if it works!
I keep mine about three days. But I only make about a half pint at a time and that's about when I run out of it. Not risking making more and keeping it longer. Although really, eggs last much longer than this, olive oil lasts without refrigeration much longer. The dried spices I use last longer still...I don't know why I always feel 3 days is the limit. Just overly careful with food preservation I guess.
I use this recipe and it has lasted me a few weeks already. http://healthyfamilychronicles.blogspot.com/2010/02/coconut-oil-mayonnaise.html
Homemade mayo expires when the eggs that made it expires. Commercial mayo lasts longer because it has a low pH, its eggs are pasteurized, and it is vacuum-sealed. The only commercial Paleo mayo is Payo, and you can pre-order it on Kickstarter:
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