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Dog's astonishing reaction to meeting adopter she'd never seen before (Original Post) catbyte Monday OP
What a precious, loving pooch Grim Chieftain Monday #1
Wonderful Picaro Monday #2
Speaking of tennis balls swong19104 Monday #3
balls Submariner Monday #4
As I have said so many times, no matter how obscure a topic might be... 3catwoman3 Monday #5
If it's just N2, you're breathing 78% N2 all the time. AZ8theist Monday #7
So beautiful Chicagogrl1 Monday #6
So sweet Alice Kramden Monday #8
Where are the onions. I swear there has to be onions in my area. n/t aggiesal Monday #9
love this video. thanks for posting it. nt orleans Monday #10

swong19104

(651 posts)
3. Speaking of tennis balls
Mon May 4, 2026, 03:37 PM
Monday

When you open a new can of tennis balls, you can get a whiff of thi particular odor. I don’t know how to describe it, but it’s quite noticeable and specific to tennis balls. I wonder whether that is safe for dogs. Humans, of course, don’t put tennis balls in their mouths. But dogs do, and is it safe for them? Just asking.

Submariner

(13,416 posts)
4. balls
Mon May 4, 2026, 03:46 PM
Monday

AI: Tennis balls are packed in cans under high-pressure gas (usually nitrogen or air) to maintain their bounce. The cans are sealed at about 12-14 psi higher than atmospheric pressure, which prevents the air inside the porous rubber balls from escaping until the can is opened. This pressurized packaging keeps them fresh and prevents them from going dead

3catwoman3

(29,713 posts)
5. As I have said so many times, no matter how obscure a topic might be...
Mon May 4, 2026, 04:10 PM
Monday

...there will be someone on DU who knows all about it.

AZ8theist

(7,565 posts)
7. If it's just N2, you're breathing 78% N2 all the time.
Mon May 4, 2026, 04:24 PM
Monday

I would surmise that smell is because of the materials the tennis balls are made from. Just like that "new car smell" if from a combination of materials used in construction of the cars interior. As the plastics, leathers, trim, etc., outgas you slowly lose that aroma over time.

I used to take one of my doggos to the dog park and it was loaded with tennis balls. Tennis balls covered in the filthiest of everything imaginable!! The dogs didn't seem to care much!

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