The spirits may be coming out in spurts rather than a stream because;
- It can be a result of your T500 column not being straight. This causes the spirit to back up at the entrance to the main condenser. It is important the column is vertical at all times.
- Check your flow rate! If the temperature is fluctuating then this means the water flow is also fluctuating. This can lead to a lower alcohol percentage (lower quality result) in the final output.