Question for chefs and foodies

[zuptd]

Is there any way to preserve avocado once it has been sliced open? Or is this a case of just having to cook or eat it right away? There must be something, otherwise guacamole would turn brownish, I assume.

Comments

[zuptd]

Wow, that's a kewl site. I need to get one or two of the books they cited. The chemistry of nutrition, food, and cooking is very interesting stuff that I know very little about.

[daundelyon]

Lemon juice or another liquid containing vitamin C should help, as will tight storage. ^_^

[zuptd]

Thanks....next time I shall try one or both!

[quaryn_dk]

Yup, that was my thought, acid and vitamin C. It's the lemon/lime juice that keeps the guacamole from going brown. Covering it in plastic wrap to exclude oxygen will also help.

[mab1981]

My experience has been acids, such as from lemon/lime juices will stop the oxidation. Not sure if something like vinegar would have a similar effect.

MAB