"Anyway, if going to Greece means coming back orange like that stupid cow in the shop."
She shakes her head. "That's a Hardacre tan if I ever saw it - straight out of a bottle."
I assume that Hardacre has the kind of weather where it's very hard to get a natural tan. So a "Hardacre tan" would be one you get by using a tanning lotion "straight out of a bottle", rather than from the sun. It might, therefore, have the slightly orange colour of some fake tans.
not a teacher