Detailed Explanation
The Right Meat, The Wrong Supervision invokes the following laws.
1. If a buyer intended to purchase Product 1 and received Product 2, both the seller and the buyer have a right to void the sale [Choshen Mishpat 233: 1].
2a. If a buyer intended to purchase Grade A and instead received Grade C, the buyer may void the sale, while the seller may not void the sale [ibid].
2b. Conversely if the seller intended to sell Grade C and instead, inadvertently delivered Grade A, the seller may void the sale, while the buyer may not do so [ibid].
3. If the difference in intended quality can be effectively rectified, no one may void the sale. (The cost of rectifying the issue lies upon the seller.)
4. If the difference in intended quality is generally overlooked, Rema opines that the sale remains valid. (The cost of rectifying the issue lies upon the seller.) [Note: In practice, Nesivos rules like Rema once the consumer has paid for the article. While, if the consumer has yet to pay for the article, Nesivos rules like Ran who allows the consumer to void the sale.]
5. For a pampered consumer, even a deficiency in quality generally overlooked may be deemed significant enough to permit him/her to void the sale completely [ibid]. [See Nesivos 233:5 if it is necessary for the seller to be aware that the consumer is "pampered" or is it sufficient that the consumer specified his/her preference.]
6. Even when sale may not be nullified, when appropriate, price adjustments are necessary even if the difference is less than a sixth of the market value [ibid, Pischei Teshuva 2].
Application
Meat under an alternative rabbinical supervision:
Is that considered as
1) A different product
2) A different grade of the same product
3) A nominal difference of quality?
- Considering the two as a different product would allow both the seller and consumer to void the sale.
- Considering the two as different grades of the same product will allow the consumer to void the sale.
- Considering the two as a difference of quality generally overlooked would allow the consumer to void the sale if a) he/she has yet to pay for the meat b) if the consumer can prove that he/she is a 'pampered' customer. Otherwise, the sale remains valid while price adjustments are in place.
As both meats are edible, it is difficult to view them as two different products. Instead, we could view them either as two starkly different qualities of the same product, or else nominally different, depending on the circumstances.
If the two supervisions were of objectively different qualities, the consumer may void the sale.
If the difference between the two supervisions was nominal or subjective; unless the consumer can prove that he/she was a 'pampered consumer', the sale may not be voided. Price adjustments, when necessary, are in place. ◆