Situation You ate some food and do not remember whether you had said the after-blessing. Now you want to eat or drink more food:
What To Do Depends on if what you want to eat or drink is water:

• Not Water:
  • If the food or drink had been in front of you when you had said the blessing before, do not say it again.
  • If the food or drink was not in front of you and was also not available to you when you said the first fore-blessing, say a new fore-blessing.
• Water (after having drunk water earlier in the same place):
  If you are not certain whether you had said the after-blessing and even if you definitely did NOT say the after blessing, do not say a new fore-blessing.
  Reason Water is always considered to be in front of you (in the water pipe).