Do I have a claim for damages if I find a foreign object in frozen food?

Thank goodness you were not hurt. A claim for negligence requires damages that luckily you did not suffer. You may get a coupon or free product from the chili company if you write a letter and enclose the plastic found in the product.

Good luck.

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I agree with Alan, you need to have suffered damages in order to make a direct claim. If you can document that you swallowed the plastic by going to the hospital ER, you will have suffered damages. Otherwise it may be a difficult claim to win. You should see a doctor at the very least, get a medical report, save the pieces and contact an attorney before trying to contact the manufacturer. What the potential damages might be would depend on the medical report and an attorney's skill, provided you can find one to take the case.