Yvonne Whalen said she found a live spider in the grapes she purchased at a local supermarket.
A local expert said it was a dangerous black widow.
Whalen, from Dillsburg, said she bought the red grapes last week. On Thursday, she pulled them out of the fridge. While she was rising and eating them, she found the spider.
"The next thing I know, there was this leg coming up over a grape and needless to say I dropped by grapes in the sink," Whalen said.
She put the creepy crawler in a plastic container and later that night a bug expert came to take a closer look.
"There's no mistaking a black widow, even in a juvenile form like this. There is just enough there that you can really tell it's a black widow," Ryan "The Bug Man" Bridge said.
Bridge performs black widow removals.
The spiders are venomous. If bitten, you need to go to the hospital. Though rare, they can be deadly.
Bridge also said finding a black widow in a bunch of grapes is not unusual.
Those at Giant Food Stores admit is does happen from time to time. Whalen said she brought them at the Dillsburg location.
"A customer alerted us today that she found a black widow spider in grapes she had purchased from our Dillsburg store," Giant said in a statement.
"We regret that this incident has occurred and are taking immediate steps to prevent a similar incident from happening in the future. We will continue to diligently inspect product both at our perishable distribution center and at the store while thoroughly investigating this serious matter with our suppliers."