The coffee is brewed at 90 as this is the optimal temperature to make a great cup of coffee. It's important to bear in mind that once the coffee reaches your cup, it's more likely to be about 60-70 degrees. If you feel the machine isn't heating up to this, it may be for the following reasons:
1. It could be because you're not giving the machine enough time to heat up. Wait until the light stops flashing before making your coffee.
2. The machine being clogged can also affect the temperature. We'd recommend clearing out the machine by brewing 2-3 tanks of water without a pod.
Any issues just give the team a shout - shop@grind.co.uk.