Ok, so the issues are a wee bit complicated - and I apologize, in advance, if bringing religion into this forum is not acceptable, I am, in now way trying to influence anybody to my way of thinking - neither Jews or non-Jews - but, rather, trying to solve a real beer issue which is important to me. I also apologize if this answer is a bit long - skip to the next posting if you want.
The issues which "could" arise with hops are basically as follows:-
1. "Mixing of crops in a field" - from the biblical prohibition of using two different types of animals to plough (together) - also comes the prohibition of planting two different crops in the same field - or close to one another
2. Possible problems caused by Jewish farm workers working in the field on the Sabbath
3. The processing of the hop flowers into pellets; is 'something' mixed-in to make the pellet 'better' e.g. oils etc
4. Is the processing equipment used for other food-stuffs - and not properly cleaned between these different products.
5. Contamination of the hops by bugs, insects etc. The FDA "allow" a certain (very small) % of contamination. Jewish dietary laws try and prevent ALL contamination.
An example of this is Nori seaweed (and the consequences affect Irish Moss also). Naturally grown Nori attracts micro-size seahorses which become dried in with the actual seaweed. And so is not Kosher. Kosher seaweed is grown in ponds without the little seahorses riding around.
All these issues would affect all produce (and not just Hops) but, in addition (and this gets really complicated!) some issues only affect Israel (and I'm not talking political here)
99% of the Jewish dietary laws affect produce and Jews worldwide - however, there are some issues that affect the dietary laws only in Israel. And these affect grains. All grains are divided into either "new" or "old" - in terms of when they were harvested in respect to the time of Passover. (and it doesn't matter where they were grown)
ALL these issues are fairly easily dealt with - in just takes the farmer (or whoever) to actually go to the trouble and get his products supervised by some sort of Rabbinical authority.
All my beer ingredients are covered - except the hops.
I tried to contact Puterbaugh Farms - I found them on Google - but they never responded to email or to when I phoned them during office hours (their time).
If somebody would try and contact them on my behalf, I would be really grateful.
In general, the Beer market in Israel is in it's infancy - there are maybe three suppliers of ingredients and equipment - I'm talking 'whole country' and not 'locally' here. There are maybe a dozen microbreweries. And there are absolutely no local beer ingredients grown here - we're even short of water! So the market is new and that's what makes it very exciting and (maybe) a great business opportunity.
The comparison between Halal (according to Muslim dietary laws) and Kosher (according to Jewish dietary laws) is a bit misleading. We all are doing are own 'thing' - with very little overlap in what is permissible to each religion. By the Koran, alcohol is forbidden - while, in the Torah, alcohol (especially wine) is sanctified and is used to sanctify. I start my Sabbath meal -coming soon - with a large glass of great red wine.