Anchor ads are not supported on this page.

4S Ranch Allied Gardens Alpine Baja Balboa Park Bankers Hill Barrio Logan Bay Ho Bay Park Black Mountain Ranch Blossom Valley Bonita Bonsall Borrego Springs Boulevard Campo Cardiff-by-the-Sea Carlsbad Carmel Mountain Carmel Valley Chollas View Chula Vista City College City Heights Clairemont College Area Coronado CSU San Marcos Cuyamaca College Del Cerro Del Mar Descanso Downtown San Diego Eastlake East Village El Cajon Emerald Hills Encanto Encinitas Escondido Fallbrook Fletcher Hills Golden Hill Grant Hill Grantville Grossmont College Guatay Harbor Island Hillcrest Imperial Beach Imperial Valley Jacumba Jamacha-Lomita Jamul Julian Kearny Mesa Kensington La Jolla Lakeside La Mesa Lemon Grove Leucadia Liberty Station Lincoln Acres Lincoln Park Linda Vista Little Italy Logan Heights Mesa College Midway District MiraCosta College Miramar Miramar College Mira Mesa Mission Beach Mission Hills Mission Valley Mountain View Mount Hope Mount Laguna National City Nestor Normal Heights North Park Oak Park Ocean Beach Oceanside Old Town Otay Mesa Pacific Beach Pala Palomar College Palomar Mountain Paradise Hills Pauma Valley Pine Valley Point Loma Point Loma Nazarene Potrero Poway Rainbow Ramona Rancho Bernardo Rancho Penasquitos Rancho San Diego Rancho Santa Fe Rolando San Carlos San Marcos San Onofre Santa Ysabel Santee San Ysidro Scripps Ranch SDSU Serra Mesa Shelltown Shelter Island Sherman Heights Skyline Solana Beach Sorrento Valley Southcrest South Park Southwestern College Spring Valley Stockton Talmadge Temecula Tierrasanta Tijuana UCSD University City University Heights USD Valencia Park Valley Center Vista Warner Springs

The danger of licking envelopes

Glue on flaps is a cozy medium for bacteria

The glue contains a dollop of bacteria-and-mold inhibitor. - Image by Rick Geary
The glue contains a dollop of bacteria-and-mold inhibitor.

Do bacteriologists, physicians, and persons similarly knowledgeable concerning “germs” lick envelopes, whether from the post office or received in advertising mail? — R.N. Morgan, Hillcrest

Sponsored
Sponsored

So you’re suggesting not only are we guaranteed to lose that Publishers Clearinghouse thing, we’ll be so sick with the flu from licking the envelope, we won’t even care. Life just gets richer, doesn’t it? Well, I’m not sure how many bacteriologists wear latex gloves to open their mail, but I can say your birthday card from sweet old Mom is more infested than your phone bill.

True, glue on envelope flaps is a cozy medium for bacteria. The main ingredient is usually dextrin, a sugar not unlike Karo syrup, though envelope dextrin usually.comes from processed potatoes. Humectants control the absorption of moisture, and polyvinyl resins boofct the stick-on factor for some paper finishes. Scientists have cultured a bevy of microorganisms from mail on which the sender licked the flap glue. But unlicked, it’s quite pristine. The glue contains a dollop of bacteria-and-mold inhibitor (usually sodium benzoate), and it’s dried under hot lamps after it’s applied to the flap. Envelopes are untouched by germy humans during manufacture, and return envelopes in mass mailings are inserted by machine. Even the bacteria you slobber on with your tongue have a limited life span, judging from the science guys’ experiments. They also declare safe the glue on manhandled stamps.

It’s pretty well known that you spread a fistful of germs when you touch someone, so if you don’t shake hands with your mailman, the whole mail experience is not a threat. Just don’t make a habit of relicking someone else’s envelope flaps. That’s your Matthew Alice good-health tip for the day.

The latest copy of the Reader

Here's something you might be interested in.
Submit a free classified
or view all
Previous article

Secrets of Resilience in May's Unforgettable Memoir

The glue contains a dollop of bacteria-and-mold inhibitor. - Image by Rick Geary
The glue contains a dollop of bacteria-and-mold inhibitor.

Do bacteriologists, physicians, and persons similarly knowledgeable concerning “germs” lick envelopes, whether from the post office or received in advertising mail? — R.N. Morgan, Hillcrest

Sponsored
Sponsored

So you’re suggesting not only are we guaranteed to lose that Publishers Clearinghouse thing, we’ll be so sick with the flu from licking the envelope, we won’t even care. Life just gets richer, doesn’t it? Well, I’m not sure how many bacteriologists wear latex gloves to open their mail, but I can say your birthday card from sweet old Mom is more infested than your phone bill.

True, glue on envelope flaps is a cozy medium for bacteria. The main ingredient is usually dextrin, a sugar not unlike Karo syrup, though envelope dextrin usually.comes from processed potatoes. Humectants control the absorption of moisture, and polyvinyl resins boofct the stick-on factor for some paper finishes. Scientists have cultured a bevy of microorganisms from mail on which the sender licked the flap glue. But unlicked, it’s quite pristine. The glue contains a dollop of bacteria-and-mold inhibitor (usually sodium benzoate), and it’s dried under hot lamps after it’s applied to the flap. Envelopes are untouched by germy humans during manufacture, and return envelopes in mass mailings are inserted by machine. Even the bacteria you slobber on with your tongue have a limited life span, judging from the science guys’ experiments. They also declare safe the glue on manhandled stamps.

It’s pretty well known that you spread a fistful of germs when you touch someone, so if you don’t shake hands with your mailman, the whole mail experience is not a threat. Just don’t make a habit of relicking someone else’s envelope flaps. That’s your Matthew Alice good-health tip for the day.

Comments
Sponsored

The latest copy of the Reader

Here's something you might be interested in.
Submit a free classified
or view all
Previous article

At Comedor Nishi a world of cuisines meet for brunch

A Mexican eatery with Japanese and French influences
Next Article

East San Diego County has only one bike lane

So you can get out of town – from Santee to Tierrasanta
Comments
Ask a Hipster — Advice you didn't know you needed Big Screen — Movie commentary Blurt — Music's inside track Booze News — San Diego spirits Classical Music — Immortal beauty Classifieds — Free and easy Cover Stories — Front-page features Drinks All Around — Bartenders' drink recipes Excerpts — Literary and spiritual excerpts Feast! — Food & drink reviews Feature Stories — Local news & stories Fishing Report — What’s getting hooked from ship and shore From the Archives — Spotlight on the past Golden Dreams — Talk of the town The Gonzo Report — Making the musical scene, or at least reporting from it Letters — Our inbox Movies@Home — Local movie buffs share favorites Movie Reviews — Our critics' picks and pans Musician Interviews — Up close with local artists Neighborhood News from Stringers — Hyperlocal news News Ticker — News & politics Obermeyer — San Diego politics illustrated Outdoors — Weekly changes in flora and fauna Overheard in San Diego — Eavesdropping illustrated Poetry — The old and the new Reader Travel — Travel section built by travelers Reading — The hunt for intellectuals Roam-O-Rama — SoCal's best hiking/biking trails San Diego Beer — Inside San Diego suds SD on the QT — Almost factual news Sheep and Goats — Places of worship Special Issues — The best of Street Style — San Diego streets have style Surf Diego — Real stories from those braving the waves Theater — On stage in San Diego this week Tin Fork — Silver spoon alternative Under the Radar — Matt Potter's undercover work Unforgettable — Long-ago San Diego Unreal Estate — San Diego's priciest pads Your Week — Daily event picks
4S Ranch Allied Gardens Alpine Baja Balboa Park Bankers Hill Barrio Logan Bay Ho Bay Park Black Mountain Ranch Blossom Valley Bonita Bonsall Borrego Springs Boulevard Campo Cardiff-by-the-Sea Carlsbad Carmel Mountain Carmel Valley Chollas View Chula Vista City College City Heights Clairemont College Area Coronado CSU San Marcos Cuyamaca College Del Cerro Del Mar Descanso Downtown San Diego Eastlake East Village El Cajon Emerald Hills Encanto Encinitas Escondido Fallbrook Fletcher Hills Golden Hill Grant Hill Grantville Grossmont College Guatay Harbor Island Hillcrest Imperial Beach Imperial Valley Jacumba Jamacha-Lomita Jamul Julian Kearny Mesa Kensington La Jolla Lakeside La Mesa Lemon Grove Leucadia Liberty Station Lincoln Acres Lincoln Park Linda Vista Little Italy Logan Heights Mesa College Midway District MiraCosta College Miramar Miramar College Mira Mesa Mission Beach Mission Hills Mission Valley Mountain View Mount Hope Mount Laguna National City Nestor Normal Heights North Park Oak Park Ocean Beach Oceanside Old Town Otay Mesa Pacific Beach Pala Palomar College Palomar Mountain Paradise Hills Pauma Valley Pine Valley Point Loma Point Loma Nazarene Potrero Poway Rainbow Ramona Rancho Bernardo Rancho Penasquitos Rancho San Diego Rancho Santa Fe Rolando San Carlos San Marcos San Onofre Santa Ysabel Santee San Ysidro Scripps Ranch SDSU Serra Mesa Shelltown Shelter Island Sherman Heights Skyline Solana Beach Sorrento Valley Southcrest South Park Southwestern College Spring Valley Stockton Talmadge Temecula Tierrasanta Tijuana UCSD University City University Heights USD Valencia Park Valley Center Vista Warner Springs
Close

Anchor ads are not supported on this page.

This Week’s Reader This Week’s Reader