Cover the salmon and halibut fillets with the salt and leave to brine in the fridge for two hours.
Rinse well with water and cut the salmon into two equal pieces.
Cut some of the salmon into 10 slices and vacuum-seal them with the beetroot juice.
Leave the remainder natural and refrigerate both parts until use.
Smoke the halibut and smoking chips using a smoker for 10 minutes, cover, and keep in the fridge until use.