I recently made a rasberry beer with a coopers mexican cerveza kit, a 1kg brew booster, and 700 g of frozen rasberries from the supermarket, no added hops, kit yeast. Fermented at whatever the ambient temperature in laundry was in my laundry during April for one week, then racked to a secondary (to remove fruit pulp) for a second week. Bottled and primed with carb drops.
It turned out quite nicely, very refreshing with a pale orangy-pink colour and an interesting tart rasberry twang.
Even the girls like it! (unlike my beloved IPAs).
Regards,
Dr Nick aka. AlphaPale