Heloise

Dear Heloise: To keep guacamole from turning brown after making it, place the pit into the mixture, and it will stay nice and green. — Carolyn Y., in Abilene, Texas

Carolyn, I’m sorry to say that this is only a myth. The avocado seed does not prevent guacamole from oxidizing to a brown color, except for the small area directly under the seed. Instead, use a cling film and place it on top of the guacamole so that the film rests on the guacamole with no air between the food and the film. — Heloise

POLLUTION FROM TOURISM

Dear Heloise: I wanted to write in about your response to Janice G. in a letter titled: “To travel or not to travel?” Something more important than people’s travel preferences is the habitability of the planet. Tourism is responsible for roughly 8% of the world’s

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