Advanced separation of terumot and ma'aserot: How to do it and when should it be done?
Question
Will the following apply in my case?: I read that “while there is a halachic solution to separate in advance once every week, it should only be employed if you are concerned that someone (family member, perhaps) will harvest without separating”. (I assume that in advance means like a spiritual separation; that can be done before one has any produce picked/in one’s hand), In my circumstance, until I have I bigger yield, should / could I separate in advance once every week? If this is applicable in this case, please advise how this is done?
Answer
It's actually a physical separation. You pick a bit more than 1% of what you expect to harvest for the week and designate it as the terumot, you say the special text here, where you name and designate the parts of the produce still attached to the ground (or tree, for fruit), and you hold onto the terumot for the duration of the week (and make sure that no one eats it!)
Advanced separation is really bediavad, and only should be done when there is a real concern that someone will eat the food without tithing first. It's much better to separate each time.
See here my clip explaining the process, here.