You’ve probably seen the long-running ad campaign by Hebrew National with the tagline “We answer to a higher authority”. The slogan, introduced in 1965 and popularized in TV advertising since 1975, made kosher synonymous with high quality in many consumers’ minds, and worked particularly well for Hebrew National hot dogs. After all, if G-d approves, they must be good. in fact, three-fourths of the brand’s purchasers are not even Jewish, so market penetration has indeed been heavenly.
A newer campaign uses the slogan “When your hot dog’s kosher, that’s a hot dog you can trust”, spring-boarding off the earlier ad’s huge success in linking kosher with better.